| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Elements Alloys X: Alloy Development and Properties
|
| Presentation Title |
Hydrogen-enhanced Ductility in CoCrFeMnNi High-entropy Alloy Additively Manufactured by Selective Laser Melting |
| Author(s) |
Yi Ting Lin, Zhiguang Zhu, Xianghai An, Mui Ling Sharon Nai, Hung Wei Yen |
| On-Site Speaker (Planned) |
Yi Ting Lin |
| Abstract Scope |
In this work, the susceptibility of hydrogen embrittlement of the CoCrFeMnNi high-entropy alloy (HEA) additively manufactured by selective laser melting (SLM) was investigated. Extensive microstructural analysis and thermal desorption analyses were conducted to study the hydrogen trapping behavior, which revealed the high hydrogen capacity due to the complex hierarchical microstructures. Interestingly, the SLM-built CoCrFeMnNi exhibit a higher total elongation after cathodic hydrogen charging. The results show that the excellent resistance to hydrogen embrittlement was due to the high hydrogen content and more formations of deformation twins. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Entropy Alloys, |