Investigation Of TIG Dressing And Chilling Treatment For Improving The Fatigue Strength Of Welded Joints

被引：2
|
作者：
Zhu, Ping [1 ]
Shi, ChunYuan [1 ]
Jin, Cheng [1 ]
Zhang, XiuJuan [2 ]
机构：
[1] Dalian Jiaotong Univ, Dept Mat Sci & Engn, Dalian 116028, Liaoning Provin, Peoples R China
[2] Dalian Jiaotong Univ, Dept Engn Mech, Dalian 116028, Liaoning Provin, Peoples R China
来源：
MECHANICS, SOLID STATE AND ENGINEERING MATERIALS | 2011年 / 279卷
关键词：
TIG dressing; chilling treatment; residual stress; fatigue strength;
D O I：
10.4028/www.scientific.net/AMR.279.230
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The negative temperature field with a certain strength is exerted on the TIG dressing zone in welding toes, which could decrease and offset the residual stress. When the temperature of TIG dressing zone is or above 450 degrees C, the chilling treatment could produce the stress field of biaxial compression. The chilling treatment is performed when the temperature of dressing zone is 550 degrees C. The fatigue strength of joints can be increased more than twice comparing with those after welding.
引用
收藏
页码：230 / +
页数：2
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