Fatigue strength of austenitic butt welded joints under thermomechanical loading conditions

被引：0

作者：

Bosch, Alexander ^{[1
]}

Vormwald, Michael ^{[1
]}

Langschwager, Kay ^{[1
]}

Scholz, Alfred ^{[1
]}

Oechsner, Matthias ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Stahlbau & Werkstoffmech, Fachgebiet Werkstoffmech, Franziska Braun Str 3, D-64287 Darmstadt, Germany

来源：

MATERIALS TESTING | 2016年 / 58卷 / 7-8期

关键词：

Austentic stainless steel 1.4550; Butt weld; Low cycle fatigue; Metallurgical notch; Thermo-mechnical fatigue;

D O I：

10.3139/120.110899

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Butt welded joints made of austenitic steel are often a part of components for power plants or for chemical equipment constructions. Thereby, the components are subjected to cyclic mechanical and thermal loadings. Especially caused by high ranges in temperature loading, high elastic-plastic strain ranges are the result. Differences in plastic deformation behavior of base and weld material, led to a metallurgical notch, which may govern fatigue failure. During the accompanying numerical investigations, a model for the consideration of the metallurgical notch has been developed.

引用

页码：652 / 659

页数：8

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