TY - JOUR
T1 - Enhancing the hydrogen embrittlement resistance with cementite/VC multiple precipitates in high-strength steel
AU - Shi, Rongjian
AU - Wang, Yanlin
AU - Lu, Supeng
AU - Liu, Saiyu
AU - Tu, Yanqi
AU - Yang, Shani
AU - Gao, Kewei
AU - Yang, Xu-Sheng
AU - Pang, Xiaolu
N1 - Funding Information:
The authors acknowledge the financial support received from the National Natural Science Foundation of China (Nos. 52201060 and 51922002 ) and China Postdoctoral Science Foundation (Nos. BX20220035 and 2022M710347 ), Science Center for Gas Turbine Project (No. P2022-B-IV-008-001 ), and PolyU grant (No. G-UAMV ).
Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/5/25
Y1 - 2023/5/25
N2 - The superior hydrogen embrittlement (HE) resistance and satisfied work hardening capacity are achieved in high-strength spring steel after hydrogen pre-charging with dispersed multiple precipitates via the multi-microalloying of 1.04 wt% Cr and 0.14 wt% V. The precipitates are determined to be the triplex microstructures, i.e., the isolated (Mn, Cr, V)-enriched cementite, isolated V-enriched VC, and the co-precipitation of cementite and VC. These multiple precipitates could act as the effective hydrogen traps to achieve more potent irreversible hydrogen trapping capacity, thus inhibiting the HE susceptibility by ∼23%. Hence, the strategy of cementite/VC multiple precipitates is beneficial in designing the high-strength and HE-resistant automotive steels.
AB - The superior hydrogen embrittlement (HE) resistance and satisfied work hardening capacity are achieved in high-strength spring steel after hydrogen pre-charging with dispersed multiple precipitates via the multi-microalloying of 1.04 wt% Cr and 0.14 wt% V. The precipitates are determined to be the triplex microstructures, i.e., the isolated (Mn, Cr, V)-enriched cementite, isolated V-enriched VC, and the co-precipitation of cementite and VC. These multiple precipitates could act as the effective hydrogen traps to achieve more potent irreversible hydrogen trapping capacity, thus inhibiting the HE susceptibility by ∼23%. Hence, the strategy of cementite/VC multiple precipitates is beneficial in designing the high-strength and HE-resistant automotive steels.
KW - Carbides
KW - High-strength steel
KW - Hydrogen embrittlement
KW - Hydrogen trapping
KW - Multiple precipitates
UR - http://www.scopus.com/inward/record.url?scp=85153679936&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2023.145084
DO - 10.1016/j.msea.2023.145084
M3 - Journal article
AN - SCOPUS:85153679936
SN - 0921-5093
VL - 874
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
M1 - 145084
ER -