The influence of the base material - filler metal pairing on the fatigue crack propagation of 700 MPa strength category welded joints

被引：0
|
作者：
Lukacs, J. [1 ]
Mobark, H. F. H. [1 ]
机构：
[1] Univ Miskolc, Miskolc, Hungary
来源：
12TH HUNGARIAN CONFERENCE ON MATERIALS SCIENCE (HMSC12) | 2020年 / 903卷
关键词：
BEHAVIOR;
D O I：
10.1088/1757-899X/903/1/012058
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In the field of welding of high-strength structural steels, the 700 MPa strength category represents a kind of boundary Overmatched (OM) consumables are also available, but the behavior of various mismatch types under cyclic loading condition is not yet clear. In order to know the fatigue crack propagation resistance of 700 MPa strength category steels and their gas metal arc welded joints fatigue crack growth tests were performed on statistically representative samples. Matching/overmatching (M/OM) mismatch type was tested, the tests results were analyzed and fatigue crack propagation limit curves were determined. The different mismatch types, our and previous results were compared. It can be concluded that M type is the optimal and M/OM type is more beneficial than simple OM type.
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页数：8
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