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HERO ID
7077223
Reference Type
Journal Article
Title
A Review of Research Status of Hydrogen Embrittlement for Automotive Advanced High-Strength Steels
Author(s)
Li Jinxu; Wang Wei; Zhou Yao; Liu Shenguang; Fu Hao; Wang Zheng; Kan Bo; ,
Year
2020
Is Peer Reviewed?
Yes
Journal
Jinshu Xuebao
ISSN:
0412-1961
Publisher
SCIENCE PRESS
Location
BEIJING
Volume
56
Issue
4
Page Numbers
444-458
DOI
10.11900/0412.1961.2019.00427
Web of Science Id
WOS:000522825500006
Abstract
This paper overviewed the current research status and important results of the hydrogen embrittlement (HE) of the representative steel types from 1st to 3rd generation advanced high-strength steel (AHSS): transformation induced plasticity (TRIP) steel, twinning-induced plasticity (TWIP) steel, quenching & partitioning (QP) steel and medium manganese steel. The main conclusions are as follows: the HE sensitivity of TRIP steel is mainly reflected in the reduction of plasticity and the small loss of strength. The HE sensitivity of TWIP steel depends heavily on the strain rate, i.e., the HE susceptibility is significantly increased as the strain rate decreases. Deformation twin boundaries and epsilon/gamma phase interfaces are generally prone to hydrogen-induced cracking, while Sigma 3 annealing twin boundaries are not. However, the epsilon/gamma phase interfaces with Nishiyama-Wassermann orientation relationship, which is similar to the Sigma 3 twin boundaries, could hinder the propagation of hydrogen-induced cracks. HE sensitivity of QP steel is similar to that of TRIP steel. For medium manganese steel containing a large volume fraction of austenite phase, which result in a strong TRIP effect during deformation, the HE susceptibility represented by plasticity loss and strength loss is very high. For TRIP steel, QP steel and medium manganese steel with austenite structure, the main strategy to improve their hydrogen embrittlement is to control the morphology and distribution of austenite structure; for TVVIP Steel, the measures to improve hydrogen embrittlement can be taken by controlling the prestrain rate and Al Alloying.
Keywords
AHSS; TRIP steel; TWIP steel; hydrogen embrittlement
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