Crack formation and microstructure-sensitive propagation in low cycle fatigue of a polycrystalline nickel-based superalloy with different heat treatments

Crack formation and microstructure-sensitive propagation in low cycle fatigue of a... International Journal of Fatigue 108 (2018) 79–89 Contents lists available at ScienceDirect International Journal of Fatigue journal homepage: www.elsevier.com/locate/ijfatigue Crack formation and microstructure-sensitive propagation in low cycle fatigue of a polycrystalline nickel-based superalloy with different heat treatments a a a a a a a Yahui Liu , Maodong Kang , Yun Wu , Mengmeng Wang , Min Li , Junwei Yu , Haiyan Gao , a,b, Jun Wang School of Materials Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China ARTICLE I NFO ABSTRACT Keywords: Gas turbine engine materials demand high performance of fatigue life under alternative loading. In this paper, Nickel-based superalloy crack initiation and propagation in the low cycle fatigue (LCF) of a polycrystalline nickel based superalloys was Low cycle fatigue studied via experimental and numerical methods. LCF experiments were conducted with the specimens subjected Heat treatment to different heat treatment regimes, including of standard heat treatment (SHT), heat isostatic pressing (HIP), Synchrotron radiation X-ray CT and combined heat treatment (HIP+SHT). Simulations based on finite element method (FEM) were im- FEM http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Fatigue Elsevier

Crack formation and microstructure-sensitive propagation in low cycle fatigue of a polycrystalline nickel-based superalloy with different heat treatments

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier Ltd
ISSN
0142-1123
eISSN
1879-3452
D.O.I.
10.1016/j.ijfatigue.2017.10.012
Publisher site
See Article on Publisher Site

Abstract

International Journal of Fatigue 108 (2018) 79–89 Contents lists available at ScienceDirect International Journal of Fatigue journal homepage: www.elsevier.com/locate/ijfatigue Crack formation and microstructure-sensitive propagation in low cycle fatigue of a polycrystalline nickel-based superalloy with different heat treatments a a a a a a a Yahui Liu , Maodong Kang , Yun Wu , Mengmeng Wang , Min Li , Junwei Yu , Haiyan Gao , a,b, Jun Wang School of Materials Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China ARTICLE I NFO ABSTRACT Keywords: Gas turbine engine materials demand high performance of fatigue life under alternative loading. In this paper, Nickel-based superalloy crack initiation and propagation in the low cycle fatigue (LCF) of a polycrystalline nickel based superalloys was Low cycle fatigue studied via experimental and numerical methods. LCF experiments were conducted with the specimens subjected Heat treatment to different heat treatment regimes, including of standard heat treatment (SHT), heat isostatic pressing (HIP), Synchrotron radiation X-ray CT and combined heat treatment (HIP+SHT). Simulations based on finite element method (FEM) were im- FEM

Journal

International Journal of FatigueElsevier

Published: Mar 1, 2018

References

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