High-cycle and very-high-cycle fatigue of an additively manufactured aluminium alloy under axial cycling at ultrasonic and conventional frequencies

doi:10.1016/j.ijfatigue.2024.108363

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	High-cycle and very-high-cycle fatigue of an additively manufactured aluminium alloy under axial cycling at ultrasonic and conventional frequencies
	Pan XN(潘向南); Hong YS(洪友士)
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	2024-08-01
卷号	185 页码:13
关键词	Very -high -cycle fatigue (VHCF) Loading frequency Mean stress Aluminium alloy Additive manufacturing
ISSN号	0142-1123
DOI	10.1016/j.ijfatigue.2024.108363
通讯作者	Pan, Xiangnan(panxiangnan@lnm.imech.ac.cn) ; Hong, Youshi(hongys@imech.ac.cn)
英文摘要	Along the building direction, the fatigue behavior of an additively manufactured (AM) aluminium (AlSi10Mg) alloy was investigated in high-cycle and very-high-cycle regimes by using conventionally electromagnetic resonance and ultrasonic vibration with axial loading frequencies of -110 Hz and -20 k +/- 500 Hz, respectively. No frequency effect was observed on the resulted fatigue strength and the fractography up to 108 cycles at stress ratio R = -1. All cracks initiated at AM pores and the dominating one prefers shifting from specimen surface to subsurface with growing very-high-cycle fatigue (VHCF) lives. As the tensile mean stress increases, fatigue strength sharply drops in high value regime of R >= 0.5 with annihilating VHCF occurrence, and the fatigue limits degrade on a Gerber relation beyond 109 cycles. At last, a fatigue failure map was proposed to directly describe the panorama of specimen lives under different external loads.
分类号	一类
资助项目	National Natural Science Foundation of China[11932020]
WOS关键词	SLM ALSI10MG SPECIMENS ; CHROMIUM-BEARING STEEL ; CRACK INITIATION ; VHCF RESPONSE ; EARLY GROWTH ; BEHAVIOR ; STRENGTH ; STRESS ; LIFE ; MECHANISM
WOS研究方向	Engineering ; Materials Science
语种	英语
WOS记录号	WOS:001238414100001
资助机构	National Natural Science Foundation of China
其他责任者	Pan, Xiangnan ; Hong, Youshi
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/95581]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Pan XN,Hong YS. High-cycle and very-high-cycle fatigue of an additively manufactured aluminium alloy under axial cycling at ultrasonic and conventional frequencies[J]. INTERNATIONAL JOURNAL OF FATIGUE,2024,185:13.
APA	潘向南,&洪友士.(2024).High-cycle and very-high-cycle fatigue of an additively manufactured aluminium alloy under axial cycling at ultrasonic and conventional frequencies.INTERNATIONAL JOURNAL OF FATIGUE,185,13.
MLA	潘向南,et al."High-cycle and very-high-cycle fatigue of an additively manufactured aluminium alloy under axial cycling at ultrasonic and conventional frequencies".INTERNATIONAL JOURNAL OF FATIGUE 185(2024):13.