Effect of anisotropy and slip transfer on hydrogen-assisted cracking of a 2205 duplex stainless steel: A critical analysis

被引：14
|
作者：
Wu, Weijie [1 ]
Fu, Hao [1 ]
Zhang, Xuewei [1 ]
Li, Weiguo [1 ]
Liu, Shenguang [1 ]
Li, Jinxu [1 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Corros & Protect Ctr, Beijing 100083, Peoples R China
来源：
CORROSION SCIENCE | 2023年 / 213卷
基金：
中国国家自然科学基金;
关键词：
Anisotropy; Slip transfer; Intergranular fracture; Hydrogen embrittlement; Stainless steel; COHERENT TWIN BOUNDARIES; GRAIN-BOUNDARIES; DISLOCATION INTERACTIONS; SOLUTE SEGREGATION; HEAT-TREATMENT; EMBRITTLEMENT; DEFORMATION; ENERGIES; BEHAVIOR; METALS;
D O I：
10.1016/j.corsci.2023.110988
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Duplex Stainless Steels (DSSs) for engineering applications usually show dual-phase microstructure with directional phase distribution and considerable crystallographic texture. Here, we investigate the effect of anisotropy on the Hydrogen Embrittlement (HE) susceptibility of a 2205 DSS. Moreover, slip transfer across Grain Boundary (GB) is experimentally and theoretically analyzed. The specimen sampling along 45 degrees Rolling Direction (RD) showed remarkable HE resistance owing to the delayed initiation and slow evolution of microcracks. HydrogenAssisted Cracks (HACs) frequently initiated at the austenite GBs, because the synergistic interactions between hydrogen-enhanced planar slip and slip transfer across GB promote stress/hydrogen accumulation and reduce the GB cohesion.
引用
收藏
页数：18
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