Torsional fatigue mechanisms of an A357-T6 cast aluminium alloy

被引：0

作者：

Serrano-Munoz, I. ^{[1
,2
]}

Shiozawa, D. ^{[3
]}

Dancette, S. ^{[1
]}

Verdu, C. ^{[1
]}

Buffiere, J.-Y. ^{[1
]}

机构：

[1] Université de Lyon, INSA-Lyon, MATEIS CNRS UMR 5510, Villeurbanne,69621, France

[2] Bundesanstalt für Materialforschung und prüfung (BAM), Unter den Eichen 87, Berlin,12205, Germany

[3] Department of Mechanical Engineering, Kobe University, 1-1, Rokkodai, Nada, Kobe,657-8501, Japan

来源：

Acta Materialia | 2020年 / 435-447期

关键词：

Tomography - Surface defects - Backscattering - Crack initiation - Crack propagation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The mechanisms controlling the fatigue response of an A357-T6 cast aluminium alloy under cyclic torsional loading are investigated. Surface crack monitoring coupled with Electron BackScattering Diffraction (EBSD) analysis is used to study crack initiation. Determination of S-N curve combined with interrupted in situ fatigue testing using synchrotron tomography allows the study of the propagation behaviour. It is observed that fractographic morphologies depend on the stress level. At intermediate-low stress levels (τmax∘ mode I. © 2020 Acta Materialia Inc.

引用

页码：435 / 447