Improving intergranular corrosion resistance in a nickel-free and manganese-bearing high-nitrogen austenitic stainless steel through grain boundary character distribution optimization

被引：100

作者：

Shi, F. ^{[1
]}

Tian, P. C. ^{[1
]}

Jia, N. ^{[2
]}

Ye, Z. H. ^{[1
]}

Qi, Y. ^{[1
,2
]}

Liu, C. M. ^{[2
]}

Li, X. W. ^{[1
,2
]}

机构：

[1] Northeastern Univ, Sch Mat Sci & Engn, Inst Mat Phys & Chem, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China

来源：

CORROSION SCIENCE | 2016年 / 107卷

基金：

中国国家自然科学基金;

关键词：

Stainless steel; Weight loss; SEM; Intergranular corrosion; Welding; CRACKING SUSCEPTIBILITY; PRECIPITATION BEHAVIOR; DEFORMATION-BEHAVIOR; PITTING CORROSION; EVOLUTION; SENSITIZATION; POLYCRYSTALS; DESIGN;

D O I：

10.1016/j.corsci.2016.02.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Grain boundary character distribution (GBCD) and the effect of GBCD optimization on the intergranular corrosion (IGC) of a cold rolled and subsequently annealed nickel-free and manganese-bearing high-nitrogen austenitic stainless steel were investigated. The results show that the fraction of low Sigma coincidence site lattice boundaries increases from 47.3% for the solid solution treated specimen to 83.3% for the specimen cold-rolled by 7% and then annealed at 1423 K for 10 min. Sigma 3 boundaries of high fraction effectively interrupt the connectivity of non-corrosion-resisting boundaries (special boundaries like Sigma 9, Sigma 27, etc. and general high angle boundaries) network, thus improving the IGC resistance. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：49 / 59

页数：11

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