- Evaluation of Mechanical Properties by Using Instrumented Indentation Testing for Resistance Spot Welds
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Chul-Young Choi, Jun-Ki Kim, Jae-Keun Hong, Jong-Taek Yeom, Yeong-Do Park
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J Korean Powder Metall Inst. 2011;18(1):64-72.
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DOI: https://doi.org/10.4150/KPMI.2011.18.1.064
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- Nondestructive instrumented indentation test is the method to evaluate the mechanical properties by analyzing load - displacement curve when forming indentation on the surface of the specimen within hundreds of micro-indentation depth. Resistance spot welded samples are known to difficult to measure the local mechanical properties due to the combination of microstructural changes with heat input. Particularly, more difficulties arise to evaluate local mechanical properties of resistance spot welds because of having narrow HAZ, as well as dramatic changed in microstructure and hardness properties across the welds. In this study, evaluation of the local mechanical properties of resistance spot welds was carried out using the characterization of Instrumented Indentation testing. Resistance spot welding were performed for 590MPa DP (Dual Phase) steels and 780MPa TRIP (Transformation Induced Plasticity) steels following ISO 18278-2 condition. Mechanical properties of base metal using tensile test and Instrumented Indentation test showed similar results. Also it is possible to measure local mechanical properties of the center of fusion zone, edge of fusion zone, HAZ and base metal regions by using instrumented indentation test. Therefore, measurement of local mechanical properties using instrumented indentation test is efficient, reliable and relatively simple technique to evaluate the tensile strength, yield strength and hardening exponent.
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Citations
Citations to this article as recorded by  - Vacuum brazing of dissimilar tubular component of AA2219 and AISI 304 by a low melting Al-18Ag-20Cu-5Si-0.2Zn braze alloy
Srinivas V., Amit Kumar Singh, Gopala Krishna V., Madhusudhan Reddy G.
Journal of Materials Processing Technology.2018; 252: 1. CrossRef
- Effect of Sintering Temperature on Microstructure and Mechanical Properties for the Spark Plasma Sintered Titanium from CP-Ti Powders
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Kyeong-Sik Cho, In-Beom Song, Min-Hyeok Jang, Ji-Hye Yoon, Myung-Hoon Oh, Jae-Keun Hong, Nho-Kwang Park
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J Korean Powder Metall Inst. 2010;17(5):365-372.
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DOI: https://doi.org/10.4150/KPMI.2010.17.5.365
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- The evolution of sinterability, microstructure and mechanical properties for the spark plasma sintered(SPS) Ti from commercial pure titanium(CP-Ti) was studied. The densification of titanium with 200 mesh and 400 mesh pass powder was achieved by SPS at 750sim1100°C under 10 MPa pressure and the flowing H_2+Ar mixed gas atmosphere. The microstructure of Ti sintered up to 800°C consisted of equiaxed grains. In contrast, the growth of large elongated grains was shown in sintered bodies at 900°C with the 400 mesh pass powder and the lamella grains microstructure had been developed by increasing sintering temperature. The Vickers hardness of 240~270 HV and biaxial strength of 320~340 MPa were found for the specimen prepared at 950°C.
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Citations
Citations to this article as recorded by - Sintering pressure effect on the performances of near-zero thermal expansion xLFCS/Cu metal matrix composites
Chang Zhou, Hong Zhong, Hao Lu, Xuelu Pang, Congfa Zhang, Haowu Wang, Qiang Cong, Yuzhu Song, Naike Shi, Jiong Zhao, Xiangxu Meng, Jun Chen
Ceramics International.2023; 49(17): 27958. CrossRef - Spark plasma sintered Al-0.5 wt% MWCNT nanocomposite: Effect of sintering pressure on the densification behavior and multi-scale mechanical properties
Lavish K. Singh, Alok Bhadauria, Akash Oraon, Tapas Laha
Diamond and Related Materials.2019; 91: 144. CrossRef - Manufacturing and Properties of CGI-based Composite Coating Layer Utilizing a Warm Spray Process and Cu-Ga and Cu-In Mixed Powders
Min-Gwang Jeon, Myeong-Ju Lee, Hyeong-Jun Kim, Kee-Ahn Lee
Journal of Korean Powder Metallurgy Institute.2014; 21(3): 229. CrossRef - Effect of particle size distribution on microstructure and mechanical properties of spark-plasma-sintered titanium from CP-Ti powders
Je Ha Shon, In-Beom Song, Kyeong-Sik Cho, Yong-il Park, Jae-Keun Hong, Nho-Kwang Park, Myung-Hoon Oh
International Journal of Precision Engineering and Manufacturing.2014; 15(4): 643. CrossRef - Effects of various sintering methods on microstructure and mechanical properties of CP-Ti powder consolidations
Je-ha SHON, Jong-moon PARK, Kyeong-sik CHO, Jae-keun HONG, Nho-kwang PARK, Myung-hoon OH
Transactions of Nonferrous Metals Society of China.2014; 24: s59. CrossRef - Sintering and Rolling Behavior of Cu-50In-13Ga Ternary Alloy Powder for Sputtering Target
Dae-Won Kim, Yong-Ho Kim, Jung-Han Kim, Dae-Guen Kim, Jong-Hyeon Lee, Kwang-Bo Choi, Hyeon-Taek Son
Journal of Korean Powder Metallurgy Institute.2012; 19(4): 264. CrossRef - Effect of Heat Treatment Environment on the Properties of Cold Sprayed Cu-15 at.%Ga Coating Material for Sputtering Target
Byung-Chul Choi, Dong-Yong Park, Hyung-Jun Kim, Ik-Hyun Oh, Kee-Ahn Lee
Journal of Korean Powder Metallurgy Institute.2011; 18(6): 552. CrossRef
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