Tensile Response of As-Cast CoCrFeNi and CoCrFeMnNi High-Entropy Alloys
In this research, we systematically investigated equiatomic CoCrFeNi and CoCrFeMnNi high-entropy alloys (HEAs). Both of these HEA systems are single-phase, face-centered-cubic (FCC) structures. Specifically, we examined the tensile response in as-cast quaternary CoCrFeNi and quinary CoCrFeMnNi HEAs...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
|
| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/12/2/157 |
| _version_ | 1797481499232043008 |
|---|---|
| author | Tu-Ngoc Lam Mao-Yuan Luo Takuro Kawasaki Stefanus Harjo Jayant Jain Soo-Yeol Lee An-Chou Yeh E-Wen Huang |
| author_facet | Tu-Ngoc Lam Mao-Yuan Luo Takuro Kawasaki Stefanus Harjo Jayant Jain Soo-Yeol Lee An-Chou Yeh E-Wen Huang |
| author_sort | Tu-Ngoc Lam |
| collection | DOAJ |
| description | In this research, we systematically investigated equiatomic CoCrFeNi and CoCrFeMnNi high-entropy alloys (HEAs). Both of these HEA systems are single-phase, face-centered-cubic (FCC) structures. Specifically, we examined the tensile response in as-cast quaternary CoCrFeNi and quinary CoCrFeMnNi HEAs at room temperature. Compared to CoCrFeNi HEA, the elongation of CoCrFeMnNi HEA was 14% lower, but the yield strength and ultimate tensile strength were increased by 17% and 6%, respectively. The direct real-time evolution of structural defects during uniaxial straining was acquired via in situ neutron-diffraction measurements. The dominant microstructures underlying plastic deformation mechanisms at each deformation stage in as-cast CoCrFeNi and CoCrFeMnNi HEAs were revealed using the Convolutional Multiple Whole Profile (CMWP) software for peak-profile fitting. The possible mechanisms are reported. |
| first_indexed | 2024-03-09T22:15:31Z |
| format | Article |
| id | doaj.art-9f74cbc9d2ca4748b4a149224d52eff2 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T22:15:31Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-9f74cbc9d2ca4748b4a149224d52eff22023-11-23T19:23:48ZengMDPI AGCrystals2073-43522022-01-0112215710.3390/cryst12020157Tensile Response of As-Cast CoCrFeNi and CoCrFeMnNi High-Entropy AlloysTu-Ngoc Lam0Mao-Yuan Luo1Takuro Kawasaki2Stefanus Harjo3Jayant Jain4Soo-Yeol Lee5An-Chou Yeh6E-Wen Huang7Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanJ-PARC Center, Japan Atomic Energy Agency, Ibaraki 319-1195, JapanJ-PARC Center, Japan Atomic Energy Agency, Ibaraki 319-1195, JapanDepartment of Materials Science and Engineering, Indian Institute of Technology, New Delhi 110016, IndiaDepartment of Materials Science and Engineering, Chungnam National University, Daejeon 34134, KoreaDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013, TaiwanDepartment of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, TaiwanIn this research, we systematically investigated equiatomic CoCrFeNi and CoCrFeMnNi high-entropy alloys (HEAs). Both of these HEA systems are single-phase, face-centered-cubic (FCC) structures. Specifically, we examined the tensile response in as-cast quaternary CoCrFeNi and quinary CoCrFeMnNi HEAs at room temperature. Compared to CoCrFeNi HEA, the elongation of CoCrFeMnNi HEA was 14% lower, but the yield strength and ultimate tensile strength were increased by 17% and 6%, respectively. The direct real-time evolution of structural defects during uniaxial straining was acquired via in situ neutron-diffraction measurements. The dominant microstructures underlying plastic deformation mechanisms at each deformation stage in as-cast CoCrFeNi and CoCrFeMnNi HEAs were revealed using the Convolutional Multiple Whole Profile (CMWP) software for peak-profile fitting. The possible mechanisms are reported.https://www.mdpi.com/2073-4352/12/2/157high-entropy alloytensile propertyin situ neutron-diffractiondeformation twins |
| spellingShingle | Tu-Ngoc Lam Mao-Yuan Luo Takuro Kawasaki Stefanus Harjo Jayant Jain Soo-Yeol Lee An-Chou Yeh E-Wen Huang Tensile Response of As-Cast CoCrFeNi and CoCrFeMnNi High-Entropy Alloys Crystals high-entropy alloy tensile property in situ neutron-diffraction deformation twins |
| title | Tensile Response of As-Cast CoCrFeNi and CoCrFeMnNi High-Entropy Alloys |
| title_full | Tensile Response of As-Cast CoCrFeNi and CoCrFeMnNi High-Entropy Alloys |
| title_fullStr | Tensile Response of As-Cast CoCrFeNi and CoCrFeMnNi High-Entropy Alloys |
| title_full_unstemmed | Tensile Response of As-Cast CoCrFeNi and CoCrFeMnNi High-Entropy Alloys |
| title_short | Tensile Response of As-Cast CoCrFeNi and CoCrFeMnNi High-Entropy Alloys |
| title_sort | tensile response of as cast cocrfeni and cocrfemnni high entropy alloys |
| topic | high-entropy alloy tensile property in situ neutron-diffraction deformation twins |
| url | https://www.mdpi.com/2073-4352/12/2/157 |
| work_keys_str_mv | AT tungoclam tensileresponseofascastcocrfeniandcocrfemnnihighentropyalloys AT maoyuanluo tensileresponseofascastcocrfeniandcocrfemnnihighentropyalloys AT takurokawasaki tensileresponseofascastcocrfeniandcocrfemnnihighentropyalloys AT stefanusharjo tensileresponseofascastcocrfeniandcocrfemnnihighentropyalloys AT jayantjain tensileresponseofascastcocrfeniandcocrfemnnihighentropyalloys AT sooyeollee tensileresponseofascastcocrfeniandcocrfemnnihighentropyalloys AT anchouyeh tensileresponseofascastcocrfeniandcocrfemnnihighentropyalloys AT ewenhuang tensileresponseofascastcocrfeniandcocrfemnnihighentropyalloys |