The effect of cold rolling on grain boundary structure and stress corrosion cracking susceptibility of twins in alloy 690 in simulated PWR primary water environment

被引：52

作者：

Kuang, Wenjun ^{[1
]}

Was, Gary S. ^{[1
]}

Miller, Cody ^{[2
]}

Kaufman, Mike ^{[2
]}

Alam, Talukder ^{[3
]}

Gwalani, Bharat ^{[3
]}

Banerjee, Rajarshi ^{[3
]}

机构：

[1] Univ Michigan, 2355 Bonisteel Blvd, Ann Arbor, MI 48109 USA

[2] Colorado Sch Mines, 201 Hill Hall, Golden, CO 80401 USA

[3] Univ North Texas, UNT Res Pk,3940 N Elm, Denton, TX 76207 USA

来源：

CORROSION SCIENCE | 2018年 / 130卷

关键词：

Alloy; SEM; TEM; Stress corrosion; Intergranular corrosion; INTERGRANULAR CORROSION; CHARACTER-DISTRIBUTION; INTERNAL OXIDATION; HYDROGENATED STEAM; STAINLESS-STEEL; PRECIPITATION; MISORIENTATION; BEHAVIOR; 304-STAINLESS-STEEL; MECHANISM;

D O I：

10.1016/j.corsci.2017.11.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of cold rolling on the structure and stress corrosion cracking (SCC) susceptibility of twin boundaries in alloy 690 were studied. Most of the twin boundaries were transformed into random high angle boundaries (RHABs) following cold rolling. The transformed twin boundaries (TTBs) showed increased susceptibility to carbide precipitation during subsequent aging at 475 degrees C. The SCC initiation test in 360 degrees C hydrogenated water indicated that the prior RHABs exhibited increased SCC susceptibility after cold rolling. Moreover, ills become susceptible to SCC due to the promoted outward diffusion of Cr and can enhance the connectivity of susceptible grain boundaries.

引用

页码：126 / 137

页数：12

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