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Low-cycle fatigue anisotropy and fracture behavior of the die-forged 2014 aircraft wheel
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  • Yuchang Su,
  • Zhengjun Shen,
  • Liuli Yang,
  • Jichang Deng,
  • Yinyin Zhu
Yuchang Su
Central South University School of Materials Science and Engineering

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Zhengjun Shen
Central South University School of Materials Science and Engineering
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Liuli Yang
Hunan University
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Jichang Deng
Central South University School of Materials Science and Engineering
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Yinyin Zhu
Central South University School of Materials Science and Engineering
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Abstract

In order to provide a sufficient theoretical basis for the fatigue resistant design of the aircraft wheels, strain-controlled low-cycle fatigue (LCF) tests were carried out on specimens machined in the extrusion direction (ED) and transverse direction (TD) of die-forged 2014 aluminum alloy wheel. Although the TD specimens show lower tensile strength and yield strength, the fatigue test results reveal that the TD specimens show superior fatigue life compared with the ED specimens at total strain amplitudes of 0.5% ~ 0.8%. This is predominantly caused by the Al 12(MnSi) 2(FeCu) intermetallic particles near the surface layer lead to a relatively short crack initiation stage for the ED specimens. In contrast, TD specimens with finer and more uniform recrystallized grains have better resistance to fatigue crack initiation (FCI) and propagation (FCP).
06 May 2022Submitted to Fatigue & Fracture of Engineering Materials & Structures
07 May 2022Submission Checks Completed
07 May 2022Assigned to Editor
11 May 2022Reviewer(s) Assigned
30 Jun 2022Review(s) Completed, Editorial Evaluation Pending
03 Jul 2022Editorial Decision: Revise Major
23 Aug 20221st Revision Received
23 Aug 2022Submission Checks Completed
23 Aug 2022Assigned to Editor
26 Aug 2022Reviewer(s) Assigned
29 Sep 2022Review(s) Completed, Editorial Evaluation Pending
29 Sep 2022Editorial Decision: Accept