Fatigue Properties and Cracking of High Strength Steel S1100QL Welded Joints

被引：11

作者：

Slezak, Tomasz ^{[1
]}

Sniezek, Lucjan ^{[1
]}

机构：

[1] Mil Univ Technol, Fac Mech Engn, Dept Machine Bldg, PL-00908 Warsaw, Poland

来源：

FRACTURE AND FATIGUE OF MATERIALS AND STRUCTURES | 2014年 / 598卷

关键词：

fatigue strength; high strength steel; welded joints; laser welding;

D O I：

10.4028/www.scientific.net/KEM.598.237

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The paper is focused on the results of fatigue properties and fractographic analysis of the steel S1100QL welded joints. The studies were carried out on the samples, which were welded using laser beam and electric arc. Tests were conducted under variable levels of total strain amplitude Delta epsilon(ac) and stable value of cycle asymmetry ratio R. The results show that welding technique greatly influences the fatigue properties and nature of fracture. The place of crack initiation in laser welds depends rather on the structural factors than stress concentration.

引用

页码：237 / 242

页数：6

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