Comprehensive Impact of Machined Surface Integrity on Stress Corrosion Cracking Initiation in 316 Austenitic Stainless Steel

被引：0

作者：

Liu, Zongyi ^{[1
]}

Zhang, Wenqian ^{[1
]}

机构：

[1] Hubei Univ Technol, Sch Mech Engn, Hubei Key Lab Modern Mfg & Qual Engn, Wuhan, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2025年 / 34卷 / 05期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

machining; stress corrosion cracking; surface integrity; residual stress; predictive model; RESIDUAL-STRESS; SUSCEPTIBILITY; BEHAVIOR; MECHANISM; MODEL;

D O I：

10.1007/s11665-024-09369-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The comprehensive impact of machined surface integrity on stress corrosion cracking (SCC) initiation in 316 austenitic stainless steel was investigated. The surface biaxial residual stress and surface roughness are measured for different milled and turned surfaces. The crack density was measured after SCC test in boiling magnesium chloride solution and used to evaluate the SCC susceptibility. The relationship between crack density and surface integrity properties is analyzed based on nonparametric statistical method. Additionally, the equivalent stress intensity factor related to the machining-induced residual stress and surface roughness is proposed which shows a strong correlation with the SCC crack density. Based on the relationship, a predictive model is established to predict the SCC crack density.

引用

页码：4230 / 4239

页数：10

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