Sluggish hydrogen diffusion and hydrogen decreasing stacking fault energy in a high-entropy alloy

Z Xie, Y Wang, C Lu, L Dai - Materials Today Communications, 2021 - Elsevier
Hydrogen diffusion and its interaction with dislocations play an important role in hydrogen
embrittlement, however, such a process in multiple-principal high entropy alloys (HEAs) is …

First-principles study of hydrogen-vacancy interactions in CoCrFeMnNi high-entropy alloy

C Wang, K Han, X Liu, Y Zhu, S Liang, L Zhao… - Journal of Alloys and …, 2022 - Elsevier
Vacancies can easily capture H atoms in metals, forming hydrogen-vacancy
complexes/clusters. In this work, the hydrogen-vacancy interactions in CoCrFeMnNi high …

Enhancing hydrogen embrittlement resistance of medium entropy alloys by forming dislocation cell walls

DH Chung, YK Kim, YK Kim, SY Song, HJ Kwon… - Corrosion …, 2023 - Elsevier
Hydrogen embrittlement is a complex phenomenon resulting in severe deterioration of
ductility or load-bearing capacity of structural metals due to the presence of hydrogen atoms …

Hydrogen induced microstructure evolution and cracking mechanism in a metastable dual-phase high-entropy alloy

H Luo, B Zhao, Z Pan, Y Fu, X Li - Materials Science and Engineering: A, 2021 - Elsevier
Abstract Metastable Fe 50 Mn 30 Cr 10 Co 10 high-entropy alloys show outstanding
mechanical properties, which are likely to be exposed to the hydrogen environment for many …

Hydrogen induced slowdown of spallation in high entropy alloy under shock loading

ZC Xie, C Li, HY Wang, C Lu, LH Dai - International Journal of Plasticity, 2021 - Elsevier
Hydrogen embrittlement is ubiquitous in metals and alloys exposed to hydrogen, which has
been extensively studied over a century. In contrast to traditional alloys, mechanisms of …

Strong resistance to hydrogen embrittlement of high-entropy alloy

Z Pu, Y Chen, LH Dai - Materials Science and Engineering: A, 2018 - Elsevier
The resistance to hydrogen embrittlement (HE) of CrMnFeCoNi high-entropy alloy (HEA) at
both room and cryogenic temperatures was examined through tensile experiments on …

[HTML][HTML] Hydrogen enhances strength and ductility of an equiatomic high-entropy alloy

H Luo, Z Li, D Raabe - Scientific reports, 2017 - nature.com
Metals are key materials for modern manufacturing and infrastructures as well as transpot
and energy solutions owing to their strength and formability. These properties can severely …

Hydrogen embrittlement resistance of precipitation-hardened FeCoNiCr high entropy alloys

F Zhang, B Lu, X Liu, H Wang, S Jiang, M Naeem… - Intermetallics, 2023 - Elsevier
Precipitation-hardened high-entropy alloys (HEAs) with coherent nanoprecipitates are
considered promising candidates for structural application as they have shown a unique …

[HTML][HTML] Defeating hydrogen-induced grain-boundary embrittlement via triggering unusual interfacial segregation in FeCrCoNi-type high-entropy alloys

Q Li, JW Mo, SH Ma, FH Duan, YL Zhao, SF Liu… - Acta Materialia, 2022 - Elsevier
Metallic materials are mostly susceptible to hydrogen embrittlement (HE), which severely
deteriorates their mechanical properties and causes catastrophic failures with poor ductility …

[HTML][HTML] Hydrogen embrittlement micromechanisms and direct observations of hydrogen transportation by dislocations during deformation in a carbon-doped medium …

DH Kim, M Moallemi, KS Kim, SJ Kim - Journal of Materials Research and …, 2022 - Elsevier
The hydrogen embrittlement micromechanisms and the effect of carbon interstitial on
hydrogen distribution were characterized in Fe 40 Mn 40 Ni 10 Cr 10 and Fe 38 Mn 41 Ni 10 …