抄録
We investigated the effects of hydrogen on the mechanical response and embrittlement behavior of Fe20Mn20Ni20Cr20Co and Fe30Mn10Cr10Co (at.%) alloys precharged with 100 MPa hydrogen gas. These alloys can be classified as stable and metastable austenite-based high entropy alloys (HEAs), respectively. We carried out tensile tests at initial strain rates of 10−4 and 10−2 s−1 at ambient temperature. Both HEAs revealed hydrogen embrittlement associated with localized plasticity-assisted intergranular crack initiation. It is important to note that hydrogen-assisted cracking of the metastable HEA occurred via localized plasticity for both the austenite and ε-martensite phases – an unusual observation for the latter.
本文言語 | 英語 |
---|---|
ページ(範囲) | 74-77 |
ページ数 | 4 |
ジャーナル | Scripta Materialia |
巻 | 150 |
DOI | |
出版ステータス | 出版済み - 6月 2018 |
!!!All Science Journal Classification (ASJC) codes
- 材料科学(全般)
- 凝縮系物理学
- 材料力学
- 機械工学
- 金属および合金