Experimental study on WFeNiMo high-entropy alloy projectile penetrating semi-infinite steel target

doi:10.1016/j.dt.2021.06.001

IMECH-IR > 非线性力学国家重点实验室

	Experimental study on WFeNiMo high-entropy alloy projectile penetrating semi-infinite steel target
	Chen, Hai-hua; Zhang, Xian-feng; Dai LH(戴兰宏); Liu, Chuang; Xiong, Wei; Tan, Meng-ting
通讯作者	Zhang, Xian-feng(lynx@njust.edu.cn)
发表期刊	DEFENCE TECHNOLOGY
	2022-08-01
卷号	18 期号:8 页码:1470-1482
ISSN	2096-3459
摘要	The appearance of high-entropy alloys (HEAs) makes it possible for a material to possess both high strength and high ductility. It is with great potential to apply HEAs under extreme conditions such as in the penetration process. In this paper, experiments of WFeNiMo HEA and tungsten heavy alloy (WHA) projectiles penetrating medium-carbon steel were conducted by using the ballistic gun and two-stage light-gas gun that can accelerate projectiles to impact velocities ranging from 1162 m/s to 2130 m/s. Depth of penetration (DOP) at elevated impact velocities of HEA and WHA projectiles were obtained firstly. Combined with the macroscopic and microscopic analysis of the residual projectiles, the transition of the penetration mode of the WFeNiMo HEA projectile was identified systemically. The experimental results indicated that the penetration mode of the HEA projectile changes from self-sharpening to mushrooming with the increase of impact velocity, while for the WHA projectile, the penetration mode is always mushrooming. The microstructure of the residual HEA projectiles showed that the phases tangle with each other and the morphology of the microstructure of the phases differs in the two penetration modes. Besides, the evolution of shear bands and fractures varies in the two modes. The evolution of the microstructure of HEAs causes the sharp-pointed nose to disappear and the HEA projectile ultimately becomes blunt as the impact velocity increases. (c) 2021 China Ordnance Society. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).
关键词	WFeNiMo high -entropy alloys Tungsten heavy alloys Penetration mode Self -sharpening penetration Mushrooming deformation
DOI	10.1016/j.dt.2021.06.001
收录类别	SCI
语种	英语
WOS记录号	WOS:000843533300003
关键词[WOS]	LONG-ROD PENETRATION ; MECHANICAL-PROPERTIES ; DYNAMIC DEFORMATION ; FEM ANALYSIS ; MICROSTRUCTURE ; BEHAVIOR ; RESISTANCE
WOS研究方向	Engineering
WOS类目	Engineering, Multidisciplinary
资助项目	National Natural Science Foundation of China[11790292] ; NSAF Joint Fund[U1730101]
项目资助者	National Natural Science Foundation of China ; NSAF Joint Fund
论文分区	二类
力学所作者排名	3
RpAuthor	Zhang, Xian-feng
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/89923
专题	非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Chen, Hai-hua,Zhang, Xian-feng,Dai LH,et al. Experimental study on WFeNiMo high-entropy alloy projectile penetrating semi-infinite steel target[J]. DEFENCE TECHNOLOGY,2022,18,8,:1470-1482.
APA	Chen, Hai-hua,Zhang, Xian-feng,戴兰宏,Liu, Chuang,Xiong, Wei,&Tan, Meng-ting.(2022).Experimental study on WFeNiMo high-entropy alloy projectile penetrating semi-infinite steel target.DEFENCE TECHNOLOGY,18(8),1470-1482.
MLA	Chen, Hai-hua,et al."Experimental study on WFeNiMo high-entropy alloy projectile penetrating semi-infinite steel target".DEFENCE TECHNOLOGY 18.8(2022):1470-1482.

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