CRACKING OF HIGH-STRENGTH STEEL WELDED JOINTS

被引：11
|
作者：
Pancikiewicz, K. [1 ]
Zielinska-Lipiec, A. [1 ]
Tasak, E. [1 ]
机构：
[1] AGH Univ Sci & Technol, Fac Met Engn & Ind Comp Sci, Dept Phys & Powder Met, PL-30059 Krakow, Poland
来源：
ADVANCES IN MATERIALS SCIENCE | 2013年 / 13卷 / 03期
关键词：
hot cracking; cold cracking; hydrogen cracking; 7CrMoVTiB10-10 welded joint;
D O I：
10.2478/adms-2013-0013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fracture evaluation of welded joints in high-strength steels, with bainitic and martensitic structures, is presented and cracking mechanisms discussed. Hot cracks or microcracks formed during welding are further expanded as cold cracks on cooling. The cause of cracking is shown to be low temperature of weld solidification and deformation-induced contraction. Hydrogen can also be an important factor in this cracking.
引用
收藏
页码：76 / 85
页数：10
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