A comparison of brazed residual stress in plate-fin structure made of different stainless steel

被引：44

作者：

Jiang, Wenchun ^{[1
]}

Gong, Jianming ^{[1
]}

Tu, Shandong ^{[1
]}

Fan, Qinshan ^{[2
]}

机构：

[1] Nanjing Univ Technol, Sch Mech & Power Engn, Nanjing 210009, Peoples R China

[2] Nanjing Univ Technol, Div Mech, Nanjing 210009, Peoples R China

来源：

MATERIALS & DESIGN | 2009年 / 30卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Plate-fin structure; Residual stress; Strength mismatching; WELDS; RECUPERATORS;

D O I：

10.1016/j.matdes.2008.04.051

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, design optimization of brazed residual stress in stainless steel plate-fin structure was investigated theoretically. A sequentially coupling finite element analysis (FEA) program was developed to simulate the brazed residual stress distribution, with an emphasis on the material selection for plate-fin metal and filler metal. The properties of three different stainless steel for plate-fin and three different materials for filler metal were incorporated into nine different FEA models. The results show that large residual stresses are generated in brazed joint due to the yield strength mismatching between base metal and filler metal. It is found that the best models are 304 or 347 stainless steel for base metal and BNi4 for filler metal. The residual stresses in the brazed joint are mainly affected by yield strength mismatching. But the yield strength mismatching has little effect on the residual stresses for the base metal. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：23 / 27

页数：5

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