Fatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions

The fatigue-creep properties of Ni–Fe based superalloy with varying strain amplitude, temperature and holding duration are studied in ambient air. The results demonstrated that the number of cycles decreases greatly with increasing strain amplitude from 0.5% to 1.0%, and the <001>ǁRD texture i...

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Autores principales:	Zilong Zhao, Peng Zhang, Shengzhi Li, Jie Zhang, Weidong Shi, Chuangju Zhang, Yefei Li, Jingbo Yan, Fang Yang, Chang Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Superalloy Low-cycle fatigue Fatigue-creep Texture Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/37a1fee3324445f3bad353ea9b7d6c40
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spelling	oai:doaj.org-article:37a1fee3324445f3bad353ea9b7d6c402021-11-04T04:31:48ZFatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions2238-785410.1016/j.jmrt.2021.10.066https://doaj.org/article/37a1fee3324445f3bad353ea9b7d6c402021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2238785421012023https://doaj.org/toc/2238-7854The fatigue-creep properties of Ni–Fe based superalloy with varying strain amplitude, temperature and holding duration are studied in ambient air. The results demonstrated that the number of cycles decreases greatly with increasing strain amplitude from 0.5% to 1.0%, and the <001>ǁRD texture in the microstructure is conformed along the deformation direction. Both high temperature and holding duration are key factors in the reduction of fatigue cycles. It is determined that the dislocations bypass the second phase particles during deformation process, and the critical shear stress transition is observed. Different from the temperature factor, higher holding time leads to the growth of the second phase, and which finally exceeds the critical size of dislocation cutting, leading to the inducement for dislocations bypassing the second phase.Zilong ZhaoPeng ZhangShengzhi LiJie ZhangWeidong ShiChuangju ZhangYefei LiJingbo YanFang YangChang ZhangElsevierarticleSuperalloyLow-cycle fatigueFatigue-creepTextureMining engineering. MetallurgyTN1-997ENJournal of Materials Research and Technology, Vol 15, Iss , Pp 4694-4701 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Superalloy Low-cycle fatigue Fatigue-creep Texture Mining engineering. Metallurgy TN1-997
spellingShingle	Superalloy Low-cycle fatigue Fatigue-creep Texture Mining engineering. Metallurgy TN1-997 Zilong Zhao Peng Zhang Shengzhi Li Jie Zhang Weidong Shi Chuangju Zhang Yefei Li Jingbo Yan Fang Yang Chang Zhang Fatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions
description	The fatigue-creep properties of Ni–Fe based superalloy with varying strain amplitude, temperature and holding duration are studied in ambient air. The results demonstrated that the number of cycles decreases greatly with increasing strain amplitude from 0.5% to 1.0%, and the <001>ǁRD texture in the microstructure is conformed along the deformation direction. Both high temperature and holding duration are key factors in the reduction of fatigue cycles. It is determined that the dislocations bypass the second phase particles during deformation process, and the critical shear stress transition is observed. Different from the temperature factor, higher holding time leads to the growth of the second phase, and which finally exceeds the critical size of dislocation cutting, leading to the inducement for dislocations bypassing the second phase.
format	article
author	Zilong Zhao Peng Zhang Shengzhi Li Jie Zhang Weidong Shi Chuangju Zhang Yefei Li Jingbo Yan Fang Yang Chang Zhang
author_facet	Zilong Zhao Peng Zhang Shengzhi Li Jie Zhang Weidong Shi Chuangju Zhang Yefei Li Jingbo Yan Fang Yang Chang Zhang
author_sort	Zilong Zhao
title	Fatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions
title_short	Fatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions
title_full	Fatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions
title_fullStr	Fatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions
title_full_unstemmed	Fatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions
title_sort	fatigue-creep behaviors of ni–fe based superalloy under various testing conditions
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/37a1fee3324445f3bad353ea9b7d6c40
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Fatigue-creep behaviors of Ni–Fe based superalloy under various testing conditions

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