- Dispersion Behaviors of Y2O3 Particles Into Aisi 316L Stainless Steel by Using Laser Cladding Technology
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Eun-Kwang Park, Sung-Mo Hong, Jin-Ju Park, Min-Ku Lee, Chang-Kyu Rhee, Kyeong-Won Seol, Yang-Kyu Lee
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J Korean Powder Metall Inst. 2013;20(4):269-274.
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DOI: https://doi.org/10.4150/KPMI.2013.20.4.269
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- The present work investigated the dispersion behavior of Y_2O_3 particles into AISI 316L SS manufactured using laser cladding technology. The starting particles were produced by high energy ball milling in 10 min for prealloying, which has a trapping effect and homogeneous dispersion of Y_2O_3 particles, followed by laser cladding using CO_2 laser source. The phase and crystal structures of the cladded alloys were examined by XRD, and the cross section was characterized using SEM. The detailed microstructure was also studied through FE-TEM. The results clearly indicated that as the amount of Y_2O_3 increased, micro-sized defects consisted of coarse Y_2O_3 were increased. It was also revealed that homogeneously distributed spherical precipitates were amorphous silicon oxides containing yttrium. This study represents much to a new technology for the manufacture and maintenance of ODS alloys.
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Citations
Citations to this article as recorded by  - Flexible Post-Process Machining of the Directed Energy Deposition (DED) Printed Part through the On-Machine Measurement
Hoon-Hee Lee, Min-Suk Park, Dong-Mok Lee, Seung-Han Yang
Journal of the Korean Society for Precision Engineering.2020; 37(12): 881. CrossRef - Microstructure and Room Temperature Wear Properties of a Ni-Cr-B-Si-C Coating Layer Manufactured by the Laser Cladding Process
Tae-Hoon Kang, Kyu-Sik Kim, Soon-Hong Park, Kee-Ahn Lee
Korean Journal of Metals and Materials.2018; 56(6): 423. CrossRef - Manufacturing of Ni-Cr-B-Si + WC/12Co Composite Coating Layer Using Laser Cladding Process and its Mechanical Properties
Gi-Su Ham, Chul-O Kim, Soon-Hong Park, Kee-Ahn Lee
Journal of Korean Powder Metallurgy Institute.2017; 24(5): 370. CrossRef
- An Investigation of the Stability of Y2O3 and Sintering Behavior of Fe-Based ODS Particles Prepared by High Energy Ball Milling
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Eun-Kwang Park, Sung-Mo Hong, Jin-Ju Park, Min-Ku Lee, Chang-Kyu Rhee, Kyeong-Won Seol
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J Korean Powder Metall Inst. 2013;20(4):275-279.
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DOI: https://doi.org/10.4150/KPMI.2013.20.4.275
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158
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- Fe-based oxide dispersion strengthened (ODS) powders were produced by high energy ball milling, followed by spark plasma sintering (SPS) for consolidation. The mixed powders of 84Fe-14Cr-2Y_2O_3 (wt%) were mechanically milled for 10 and 90 mins, and then consolidated at different temperatures (900sim1100°C). Mechanically-Alloyed (MAed) particles were examined by means of cross-sectional images using scanning electron microscopy (SEM). Both mechanical alloying and sintering behavior was investigated by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HR-TEM). To confirm the thermal behavior of Y_2O_3, a replica method was applied after the SPS process. From the SEM observation, MAed powders milled for 10 min showed a lamella structure consisting of rich regions of Fe and Cr, while both regions were fully alloyed after 90 min. The results of sintering behavior clearly indicate that as the SPS temperature increased, micro-sized defects decreased and the density of consolidated ODS alloys increased. TEM images revealed that precipitates smaller than 50 nm consisted of YCrO_3.
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Citations
Citations to this article as recorded by - Effect of Y2O3 on Mechanical and Corrosion Properties of Fe and Fe-Ni Alloys Prepared by Mechanical Alloying Followed by Spark Plasma Sintering
Arpan Arora, Atul Kumar, Suhrit Mula
Journal of Materials Engineering and Performance.2021; 30(2): 1387. CrossRef - Synthesis and Microstructure of Fe-Base Superalloy Powders with Y-Oxide Dispersion by High Energy Ball Milling
다미 임, 종관 박, 승탁 오
Korean Journal of Materials Research.2015; 25(8): 386~390. CrossRef
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