Plastic Deformation Behavior of 40Fe–25Ni–15Cr–10Co–10V High-Entropy Alloy for Cryogenic Applications
| Autor: | Jahong Choi, Ye Won Lee, Hyun Je Sung, Byeong-Joo Lee, Mohamed Ibrahim Abd El Aal, Sunghak Lee, Min Ji Jang, Yong Hee Jo, Hyoung Seop Kim, Eun Yoo Yoon, S. Praveen, Hyunjeong Kwak, Youjin Jeong, Won-Mi Choi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Physics::Instrumentation and Detectors 020502 materials Alloy Metals and Alloys 02 engineering and technology engineering.material Plasticity Condensed Matter Physics Condensed Matter::Materials Science 0205 materials engineering Deformation mechanism Mechanics of Materials Phase (matter) Solid mechanics Ultimate tensile strength Materials Chemistry engineering Deformation (engineering) Composite material Tensile testing |
| Zdroj: | Metals and Materials International. 25:277-284 |
| ISSN: | 2005-4149 1598-9623 |
| DOI: | 10.1007/s12540-018-0184-6 |
| Popis: | A single FCC phase 40Fe–25Ni–15Cr–10Co–10V high-entropy alloy was designed, fabricated, and evaluated for potential cryogenic applications. The alloy forms a single FCC phase and exhibits higher yield strength, tensile strength, and elongation at cryogenic temperature (77 K) than at room temperature (298 K). The superior tensile properties at cryogenic temperature are discussed based on the formation of deformation twins during the tensile test at cryogenic temperature. In addition, a constitutive model reflecting the cryogenic deformation mechanism (i.e., twinning-induced plasticity) was implemented into the finite element method to analyze this behavior. Experimental results and the finite element analysis suggest that the increase in plastic deformation capacity at cryogenic temperature contributes to the formation of deformation twins. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink