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
International Journal of Fatigue – Elsevier
Published: Mar 1, 2018
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