- Investigation of Material Flow and Industrial Trend of Domestic Europium
-
Han-Jin Ko, Jeong-Gon Kim, Il-Seuk Lee, Hong-Yoon Kang, Soon-Jik Hong
-
J Powder Mater. 2013;20(5):382-387.
-
DOI: https://doi.org/10.4150/KPMI.2013.20.5.382
-
-
12
View
-
0
Download
-
1
Citations
-
 PDF
-
Citations
Citations to this article as recorded by  - Material Flow Analysis for Stable Supply and Demand Management of Tin
Sang Hyun Oh, Hong-Yoon Kang, Yong Woo Hwang, Doo Hwan Kim, Kayoung Shin, Nam Seok Kim
Resources Recycling.2023; 32(4): 18. CrossRef
- The Effect of Milling Conditions for Dissolution Efficiency of Valuable Metals from PDP Waste Panels
-
Hyo-Seob Kim, Chan-Mi Kim, Chul-Hee Lee, Sung-Kyu Lee, Hyun-Seon Hong, Jar-Myung Koo, Soon-Jik Hong
-
J Powder Mater. 2013;20(2):107-113.
-
DOI: https://doi.org/10.4150/KPMI.2013.20.2.107
-
-
23
View
-
0
Download
-
1
Citations
-
 Abstract
PDF
- In this study, the microstructure and valuable metals dissolution properties of PDP waste panel powders were investigated as a function of milling parameters such as ball diameter size, milling time, and rotational speed during high-energy milling process. The complete refinement of powder could achieved at the ball diameter size of 5 mm due to sufficient impact energy and the number of collisions. With increasing milling time, the average particle size was rapidly decreased until the first 30 seconds, then decreased gradually about 3µm at 3 minutes and finally, increased with presence of agglomerated particles of 35µm at 5 minutes. Although there was no significant difference on the size of the particle according to the rotational speed from 900 to 1,100 rpm, the total valuable metals dissolution amount was most excellent at 1,100 rpm. As a result, the best milling conditions for maximum dissolving amount of valuable metals (Mg: 375 ppm, Ag 135 ppm, In: 17 ppm) in this research were achieved with 5 mm of ball diameter size, 3min of milling time, and 1,100 rpm of rotational speed.
-
Citations
Citations to this article as recorded by - Comparison Of Mercury Distribution Between The Types Of Spent Fluorescent Lamp
S.W. Rhee, H.-S. Park, H.H. Choi
Archives of Metallurgy and Materials.2015; 60(2): 1297. CrossRef
- Fabrication of Ceramic Dental Block by Magnetic Pulsed Compaction
-
Hyo-Young Park, Hyo-Seob Kim, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2012;19(5):373-378.
-
DOI: https://doi.org/10.4150/KPMI.2012.19.5.373
-
-
Abstract
PDF
- Sintered bulks of ZrO_2 nanopowders were fabricated by magnetic pulsed compaction (MPC) and subsequent two-step sintering employed in this study and the formability effects of nanopowder on mixing condition, pressure and sintering temperature were investigated. The addition of PVA induced and increase in the formability of the sintered bulk. But cracked bulks were obtained on sintering with addition of over 10 wt% PVA due to generation of crack during sintering. The optimum compaction pressure during MPC was 1.0 GPa and mixing conditions included using 5.0 wt% PVA. The optimum processing condition included MPC process, followed by two-step sintering (first at 1000 and then at 1450°C). The sintered bulks with the diameter of 30 mm under these conditions were found to have non crack, ~99% density.
- Fabrication of Fe coated Mg Based Desulfurization Powder by Mechanical Alloying Process
-
Joon-Woo Song, Otaduy Guillermo, Byong-Sun Chun, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2012;19(3):226-231.
-
DOI: https://doi.org/10.4150/KPMI.2012.19.3.226
-
-
Abstract
PDF
- In this research, the coating behavior of Mg and Fe desulfurization powder fabricated by low energy and conventional planetary mill equipment was investigated as a function of milling time, which produces uniform Fe coated powders due to milling energy. Since high energy ball milling results in breaking the Fe coated Mg powders into coarse particles, low energy ball milling was considered appropriate for this study, and can be implemented in desulfurization industry widely. XRD and FE-SEM analyses were carried out to investigate the microstructure and distribution of the coating material. The thickness of the Fe coating layer reaches a maximum of 14 µm at 20 milling hours. The BCC structures of Fe particles are deformed due to the slip system of Fe coated Mg particles.
- Industrial Supply Chain Trend of Domestic Tungsten
-
Joon-Woo Song, Sang-Hyun Lee, Hyun-Seon Hong, Hong-Yoon Kang, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2012;19(1):79-86.
-
DOI: https://doi.org/10.4150/KPMI.2012.19.1.079
-
-
33
View
-
1
Download
-
3
Citations
-
PDF
-
Citations
Citations to this article as recorded by - Extraction Factor Of Tungsten Sources From Tungsten Scraps By Zinc Decomposition Process
J.-H. Pee, G.H. Kim, H.Y. Lee, Y.J. Kim
Archives of Metallurgy and Materials.2015; 60(2): 1311. CrossRef - Microstructure and Elevated Temperature Strength of W-ZrC Composites with Micrometric and Nanosized ZrC Particles
Yoon Soo Han, Sung-Soo Ryu
Journal of Korean Powder Metallurgy Institute.2014; 21(6): 415. CrossRef - Investigation of Material Flow and Industrial Trend of Domestic Europium
Han-Jin Ko, Jeong-Gon Kim, Il-Seuk Lee, Hong-Yoon Kang, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2013; 20(5): 382. CrossRef
- Synthesis and Characterization of (AgSbTe2)15(GeTe)85 Thermoelectric Powder by Gas Atomization Process
-
Hyo-Seob Kim, Jin-Kyu Lee, Jar-Myung Koo, Byong-Sun Chun, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2011;18(5):449-455.
-
DOI: https://doi.org/10.4150/KPMI.2011.18.5.449
-
-
19
View
-
0
Download
-
1
Citations
-
Abstract
PDF
- In this study, p-type (AgSbTe_2)_15(GeTe)_85: TAGS-85 compound powders were prepared by gas atomization process, and then their microstructures and mechanical properties were investigated. The fabricated powders were of spherical shape, had clean surface, and illustrated fine microstructure and homogeneous AgSbTe_2 + GeTe solid solution. Powder X-ray diffraction results revealed that the crystal structure of the TAGS-85 sample was single rhombohedral GeTe phase, which with a space group R_3m. The grain size of the powder particles increased while the micro Vickers hardness decreased with increasing annealing temperature within the range of 573 K and 723 K due to grain growth and loss of Te. In addition, the crystal structure of the powder went through a phase transformation from rhombohedral (R_3m) at low-temperature to cubic (F_m-3m) at high-temperature with increasing annealing temperature. The micro Vickers hardness of the as-atomized powder was around 165 Hv, while it decreased gradually to 130 Hv after annealing at 673K, which is still higher than most other fabrication processes.
-
Citations
Citations to this article as recorded by - Thermoelectric properties of n-type Bi2Te3 alloys produced by a combined process of magnetic pulsed compaction (MPC) and spark plasma sintering (SPS)
Chul-Hee Lee, M. Fatih Kilicaslan, Babu Madavali, Soon-Jik Hong
Research on Chemical Intermediates.2014; 40(7): 2543. CrossRef
- Characteristics of Indium Dissolution of Waste LCD Panel Powders Fabricated by High Energy Ball Milling (HEBM) Process with Milling Time
-
Hyo-Seob Kim, Jun-Je Sung, Cheol-Hee Lee, Hyun-Seon Hong, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2011;18(4):378-384.
-
DOI: https://doi.org/10.4150/KPMI.2011.18.4.378
-
-
20
View
-
0
Download
-
2
Citations
-
Abstract
PDF
- In this research, the indium dissolution properties of the waste LCD panel powders were investigated as a function of milling time fabricated by high-energy ball milling (HEBM) process. The particle morphology of waste LCD panel powders changed from sharp and irregular shape of initial cullet to spherical shape with an increase in milling time. The particle size quickly decreased to 15 µm until the first minute, then decreased gradually about 6 µm with presence of agglomerated particles after 5 minutes, which increased gradually reaching a uniform size of 13 µm consist of agglomerated particles after 30 minutes. The glass recovery, after dissolution, was over 99% at initial cullet, which decreased to 90.1 and 78.6% with increasing milling time of 1 and 30 minute respectively, due to a loss in remaining powder of the surface ball and jar, as well as the filter paper. The dissolution amount of indium out of the initial cullet was 208 ppm before milling, turning into 223 ppm for the mechanically milled powder after 1 minute, and nearly 146~125 ppm with further increase in milling time because of the reaction surface decrease of powders due to agglomeration. With this process, maximum dissolving indium amount (223 ppm) could be achieved at a particle size of 15 µm with 1 minute of milling.
-
Citations
Citations to this article as recorded by - Indium ion cementation onto aluminum plates in hydrochloric acid solutions: a kinetic perspective
Hyun Seon Hong, Geon Hong Kim, Myung Hwan Hong, Sungkyu Lee, Jae-Chun Lee
International Journal of Materials Research.2014; 105(2): 177. CrossRef - The Effect of Milling Conditions for Dissolution Efficiency of Valuable Metals from PDP Waste Panels
Hyo-Seob Kim, Chan-Mi Kim, Chul-Hee Lee, Sung-Kyu Lee, Hyun-Seon Hong, Jar-Myung Koo, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2013; 20(2): 107. CrossRef
- Thermoelectric Properties of Rapid Solidified p-type Bi2Te3 Alloy Fabricated by Spark Plasma Sintering(SPS) Process
-
Chul-Dong Moon, Soon-Jik Hong, Do-Hyang Kim, Taek-Soo Kim
-
J Korean Powder Metall Inst. 2010;17(6):494-498.
-
DOI: https://doi.org/10.4150/KPMI.2010.17.6.494
-
-
16
View
-
0
Download
-
1
Citations
-
Abstract
PDF
- The p-type thermoelectric compounds of Bi_2Te_3 based doped with 3wt% Te were fabricated by a combination of rapid solidification and spark plasma sintering (SPS) process. The effect of holding time during spark plasma sintering (SPS) on the microstructure and thermoelectric properties were investigated using scanning electron microscope (SEM), X-ray diffraction (XRD) and thermoelectric properties. The powders as solidified consisted of homogeneous thermoelectric phases. The thermoelectric figure of merit measured to be maximum (3.41times10-3/K) at the SPS temperature of 430°C.
-
Citations
Citations to this article as recorded by - Effect of Sintering Temperature on the Thermoelectric Properties of Bismuth Antimony Telluride Prepared by Spark Plasma Sintering
경석 이, 영근 정, 성호 서, 상현 진, 봉영 유
Korean Journal of Materials Research.2012; 22(6): 280~284. CrossRef
- Phase Transformation and Microstructure of FeSi2 Thermoelectric Compounds Manufactured by Powder Metallurgy
-
Kyoung-Tae Park, Jin-Gyo Shin, Soon-Jik Hong, Byong-Sun Chun
-
J Korean Powder Metall Inst. 2010;17(6):482-488.
-
DOI: https://doi.org/10.4150/KPMI.2010.17.6.482
-
-
Abstract
PDF
- In this study, FeSi_2 as high temperature performance capable thermoelectric materials was manufactured by powder metallurgy.The as-casted Fe-Si alloy was annealed for homogenization below 1200°C for 3 h. Due to its high brittleness, the cast alloy transformed to fine powders by ball-milling, followed by subsequent compaction (hydraulic pressure; 2 GPa) and sintering (1200°C, 12 h). In order to precipitate beta-FeSi_2, heat treatment was performed at 850°C with varying dwell time (7, 15 and 55 h). As a result of this experiment thermoelectric phase beta-FeSi_2 was quickly transformed by powder metallurgical process. There was not much change in powder factor between 7h and 55h specimens.
- Refinement Behavior of Coarse Magnesium Powder by High Energy Ball Milling (HEBM)
-
Joon-Woo Song, Hyo-Seob Kim, Hong-Moule Kim, Taek-Soo Kim, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2010;17(4):302-311.
-
DOI: https://doi.org/10.4150/KPMI.2010.17.4.302
-
-
22
View
-
0
Download
-
4
Citations
-
Abstract
PDF
- In this research, the refinement behavior of the coarse magnesium powders fabricated by gas atomization was investigated as a function of milling time using a short duration high-energy ball milling equipment, which produces fine powders by means of an ultra high-energy within a short duration. The microstructure, hardness, and formability of the powders were investigated as a function of milling time using X-ray diffraction, scanning electron microscopy, Vickers micro-hardness tester and magnetic pulsed compaction. The particle morphology of Mg powders changed from spherical particles of feed metals to irregular oval particles, then platetype particles, with increasing milling time. Due to having HCP structure, deformation occurs due to the existence of the easily breakable C-axis perpendicular to the base, resulting in producing plate-type powders. With increasing milling time, the particle size increased until 5 minutes, then decreased gradually reaching a uniform size of about 50 micrometer after 20 minutes. The relative density of the initial power was 98% before milling, and mechanically milled powder was 92~94% with increase milling time (1~5 min) then it increased to 99% after milling for 20 minutes because of the change in particle shapes.
-
Citations
Citations to this article as recorded by - Quantitative Study on the Refinement Behaviors of TiC Powders Produced by Mechanical Milling Under Different Impact Energy
Sung-Mo Hong, Eun-Kwang Park, Kyeong-Yeol Kim, Jin-Ju Park, Min-Ku Lee, Chang-Kyu Rhee, Jin-Kyu Lee, Young-Soon Kwon
Journal of Korean Powder Metallurgy Institute.2012; 19(1): 32. CrossRef - Fabrication of Fe coated Mg Based Desulfurization Powder by Mechanical Alloying Process
Joon-Woo Song, Otaduy Guillermo, Byong-Sun Chun, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2012; 19(3): 226. CrossRef - Characteristics of Indium Dissolution of Waste LCD Panel Powders Fabricated by High Energy Ball Milling (HEBM) Process with Milling Time
Hyo-Seob Kim, Jun-Je Sung, Cheol-Hee Lee, Hyun-Seon Hong, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2011; 18(4): 378. CrossRef - Microstructure and Mechanical Properties of Nano-sized Ti-35%Nb-7%Zr-10%CPP Composite Fabricated by Pulse Current Activated Sintering
Kee-Do Woo, Duck-Soo Kang, Sang-Hyuk Kim, Sang-Hoon Park, Ji-Young Kim, Hye-Rim Ko
Journal of Korean Powder Metallurgy Institute.2011; 18(2): 188. CrossRef
- Effect of Initial Silicon Scrap Size on Powder Refining Process During High Energy Ball Milling (HEBM)
-
Joon-Woo Song, Hyo-Seob Kim, Sung-Shin Kim, Jar-Myung Koo, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2010;17(3):242-250.
-
DOI: https://doi.org/10.4150/KPMI.2010.17.3.242
-
-
17
View
-
0
Download
-
5
Citations
-
Abstract
PDF
- In this research, the optimal manufacturing conditions of fine Si powders from Si scrap were investigated as a function of different initial powder size using the high-energy ball milling equipment, which produces the fine powder by means of an ultra high-energy within a short duration. The morphological change of the powders according to the milling time was observed by Scanning electron microscopy (SEM). With the increasing milling time, the size of Si powder was decreased. In addition, more energy and stress for milling were required with the decreasing initial powder size. The refinement of Si scrap was rapidly carried out at 10min ball milling time. However, the refined powder started to agglomerate at 30 min milling time, while the powder size became uniform at 60 min milling time.
-
Citations
Citations to this article as recorded by - Mechanical Properties and Biocompatibility of Ti-Nb-Zr-Mo-CPP Biomaterial Fabricated by Spark Plasma Sintering
기도 우, 상미 김, 동건 김, 대영 김, 동수 강
Korean Journal of Materials Research.2013; 23(2): 135~142. CrossRef - The Effect of Milling Conditions for Dissolution Efficiency of Valuable Metals from PDP Waste Panels
Hyo-Seob Kim, Chan-Mi Kim, Chul-Hee Lee, Sung-Kyu Lee, Hyun-Seon Hong, Jar-Myung Koo, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2013; 20(2): 107. CrossRef - Microstructure and Mechanical Properties of Nano-sized Ti-35%Nb-7%Zr-10%CPP Composite Fabricated by Pulse Current Activated Sintering
Kee-Do Woo, Duck-Soo Kang, Sang-Hyuk Kim, Sang-Hoon Park, Ji-Young Kim, Hye-Rim Ko
Journal of Korean Powder Metallurgy Institute.2011; 18(2): 188. CrossRef - Effect of Milling Time on the Microstructure and Phase Transformation Behaviors of Ni-B Powder During Mechanical Alloying Process
Jung-Geun Kim, Wook-Jin Lee, Sung-Kyun Park, Ik-Min Park, Yong-Ho Park
Journal of Korean Powder Metallurgy Institute.2011; 18(6): 496. CrossRef - Refinement Behavior of Coarse Magnesium Powder by High Energy Ball Milling (HEBM)
Joon-Woo Song, Hyo-Seob Kim, Hong-Moule Kim, Taek-Soo Kim, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2010; 17(4): 302. CrossRef
- Recycling Technology for End-of-Life LCD Units
-
Hi-Min Lee, Hyun-Seon Hong, Hang-Chul Jung, Hong-Yoon Kang, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2010;17(2):88-100.
-
DOI: https://doi.org/10.4150/KPMI.2010.17.2.088
-
-
13
View
-
0
Download
-
2
Citations
-
PDF
-
Citations
Citations to this article as recorded by - The Effect of Milling Conditions for Dissolution Efficiency of Valuable Metals from PDP Waste Panels
Hyo-Seob Kim, Chan-Mi Kim, Chul-Hee Lee, Sung-Kyu Lee, Hyun-Seon Hong, Jar-Myung Koo, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2013; 20(2): 107. CrossRef - Characteristics of Indium Dissolution of Waste LCD Panel Powders Fabricated by High Energy Ball Milling (HEBM) Process with Milling Time
Hyo-Seob Kim, Jun-Je Sung, Cheol-Hee Lee, Hyun-Seon Hong, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2011; 18(4): 378. CrossRef
- The Effect of Ti Powder addition on Compaction Behavior of TiO2 Nano Powder
-
Jin-Sub Park, Hyo-Seob Kim, Ki-Seok Lee, Jeong-Goo Lee, Chang-Kyu Rhee, Soon-Jik Hong
-
J Korean Powder Metall Inst. 2009;16(3):223-230.
-
DOI: https://doi.org/10.4150/KPMI.2009.16.3.223
-
-
15
View
-
0
Download
-
1
Citations
-
Abstract
PDF
- The compaction response of TiO_2 nano powders with an addition of Ti powders prepared by magnetic pulsed compaction and subsequent sintering processes was investigated. All kinds of different bulk exhibited an average shrinkage of about 12% for different MPCed pressure and sintering temperature, which were approximately 50% lower than those fabricated by general process (20%) and a maximum density of around 92.7% was obtained for 0.8GPa MPCed pressure and 1400°C sintering temperature. The addition of Ti powder induced an increase in the formability and hardness of the sintered TiO_2. But the lower densities were obtained on sintering with addition of over 10 (wt%) Ti powder due to generation of crack during sintering. Subsequently it was verified that the optimum compaction pressure in MPC and sintering temperature were 0.8GPa and 1400°C, respectively.
-
Citations
Citations to this article as recorded by - Fabrication of Ceramic Dental Block by Magnetic Pulsed Compaction
Hyo-Young Park, Hyo-Seob Kim, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2012; 19(5): 373. CrossRef
- Effect of Ball milling Time on Graphite Dispersion and Mechanical Properties in Rapidly Solidified 6061 Al Composite
-
Hyeon-Taek Son, Jae-Seol Lee, Soon-Jik Hong, Byong-Sun Chun
-
J Korean Powder Metall Inst. 2009;16(3):209-216.
-
DOI: https://doi.org/10.4150/KPMI.2009.16.3.209
-
-
18
View
-
0
Download
-
1
Citations
-
Abstract
PDF
- A composite of rapidly solidified Al-6061 alloy powder with graphite particle reinforcements was prepared by ball milling and subsequent hot extrusion. The microstructure and mechanical properties of these composites were investigated as a function of milling time. With increasing milling time, the gas atomized initially and spherical powders became elongated with a maximum aspect ratio after milling for 30 h. Then, refinement and spheroidization were achieved by further milling to 70 h with a homogeneous and fine dispersion of graphite particles forming between the matrix alloy layers. The best compression and wear properties were obtained in the powder milled for 70 h, associated with the increased fine and homogeneous distribution of graphite particles in the aluminum alloy matrix.
-
Citations
Citations to this article as recorded by - Fabrication of Fe coated Mg Based Desulfurization Powder by Mechanical Alloying Process
Joon-Woo Song, Otaduy Guillermo, Byong-Sun Chun, Soon-Jik Hong
Journal of Korean Powder Metallurgy Institute.2012; 19(3): 226. CrossRef
- Consolidation and Mechanical Property of Rapidly Solidified Al-20 wt% Si Alloy Powders by Continuous Equal Channel Multi-Angular Pressing
-
Seung-Chae Yoon, Cheon-Hee Bok, Min-Hong Seo, Soon-Jik Hong, Hyoung-Seop Kim
-
J Korean Powder Metall Inst. 2008;15(1):31-36.
-
DOI: https://doi.org/10.4150/KPMI.2008.15.1.031
-
-
21
View
-
0
Download
-
3
Citations
-
Abstract
PDF
- In this study, the bottom-up powder metallurgy and the top-down severe plastic deformation (SPD) techniques for manufacturing bulk nanomaterials were combined in order to achieve both full density and grain refinement without grain growth of rapidly solidified Al-20 wt% Si alloy powders during consolidation processing. Continuous equal channel multi-angular processing (C-ECMAP) was proposed to improve low productivity of conventional ECAP, one of the most promising method in SPD. As a powder consolidation method, C-ECMAP was employed. A wide range of experimental studies were carried out for characterizing mechanical properties and microstructures of the ECMAP processed materials. It was found that effective properties of high strength and full density maintaining nanoscale microstructure are achieved. The proposed SPD processing of powder materials can be a good method to achieve fully density and nanostructured materials.
-
Citations
Citations to this article as recorded by - X-ray diffraction study on the microstructure of a Mg–Zn–Y alloy consolidated by high-pressure torsion
Péter Jenei, Jenő Gubicza, Eun Yoo Yoon, Hyoung Seop Kim
Journal of Alloys and Compounds.2012; 539: 32. CrossRef - Microstructures and mechanical properties of Mg–Zn–Y alloy consolidated from gas-atomized powders using high-pressure torsion
Eun Yoo Yoon, Dong Jun Lee, Taek-Soo Kim, Hong Jun Chae, P. Jenei, Jeno Gubicza, Tamas Ungár, Milos Janecek, Jitka Vratna, Sunghak Lee, Hyoung Seop Kim
Journal of Materials Science.2012; 47(20): 7117. CrossRef - Synthesis and microstructure control of Mg alloy powder composites by multi-extrusion
Taek-Soo Kim, Hong Jun Chae, Sun-Mi Kim, Hanshin Choi, Hye Sung Kim
Journal of Alloys and Compounds.2011; 509: S247. CrossRef
- Equal Channel Angular Pressing of Rapidly Solidified Al-20 wt ％ Si Alloy Powder Extrudates
-
Seung-Chae Yoon, Soon-Jik Hong, Min-Hong Seo, Pham Quang, Hyoung-Seop Kim
-
J Korean Powder Metall Inst. 2004;11(2):97-104.
-
DOI: https://doi.org/10.4150/KPMI.2004.11.2.097
-
-
16
View
-
0
Download
-
1
Citations
-
Abstract
PDF
- In this paper processing and mechanical properties of Al-20 wt％ Si alloy was studied. A bulk form of Al-20Si alloy was prepared by gas atomizing powders having the powder size of 106-145 µm and powder extrusion. The powder extrudate was subsequently equal channel angular pressed up to 8 passes in order to refine grain and Si particle. The microstructure of the gas atomized powders, powder extrudates and equal channel angular pressed samples were investigated using a scanning electron microscope and X-ray diffraction. The mechanical properties of the bulk sample were measured by compressive tests and a micro Victors hardness test. Equal channel angular pressing was found to be effective in matrix grain and Si particle refinement, which enhanced the strength and hardness of the Al-2OSi alloy without deteriorating ductility in the range of experimental strain of 30％.
-
Citations
Citations to this article as recorded by - Consolidation of Rapidly Solidified Al-20 wt％ Si Alloy Powders Using Equal Channel Angular Pressing
Journal of Korean Powder Metallurgy Institute.2004; 11(3): 233. CrossRef
|
kpmi
