Study on improving "self-sharpening" capacity of W-Cu-Zn alloy by the pressureless infiltration method

CORC > 过程工程研究所 > 中国科学院过程工程研究所 > 研究所（批量导入）

	Study on improving "self-sharpening" capacity of W-Cu-Zn alloy by the pressureless infiltration method
	Fang, Xiaoliang 1,2; Liu, Jinxu 2; Wang, Xing 3; Li, Shukui 2; Zheng, Lingling 2
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2014-06-23
卷号	607 期号:1 页码:454-459
关键词	W-Cu-Zn alloy Self-sharpening Microstructure Dynamic mechanical properties Ballistic impact
ISSN号	0921-5093
其他题名	Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
中文摘要	In order to improve the "self-sharpening" capacity of the tungsten heavy alloy (WHA) for kinetic energy projectile application, the WHAs should have not only high strength but also proper critical shear failure strain. For the purpose of fabricating the WHAs with high strength and proper critical shear failure strain, in the present study, the WHA composed of 80W-14Cu-6Zn was prepared by W skeleton infiltrated of Cu-Zn alloy. The microstructure and mechanical properties were systematically investigated. Microstructure analysis shows that W particles are connected to form W skeleton, and the interstice of W skeleton is filled up with a phase Cu-Zn alloy which has lamellar feature resulting from spinodal decomposition during the preparation process. Due to the solid solution strengthening effect of Zn in the matrix, the static yield strength and the dynamic yield strength of the 80W-14Cu-6Zn alloy are respectively enhanced by 200 MPa and 400 MPa compared with those of the 80W-20Cu alloy. Moreover, due to the proper ductility of the Cu-Zn alloy matrix, under the uniaxial dynamic compression test, the critical shear failure strain of the 80W-14Cu-6Zn alloy is effectively controlled within 0.2-0.4, which is beneficial to promote "self-sharpening" effect during the penetration process for kinetic energy projectile application. Additionally, the failure mechanism of the 80W-14Cu-6Zn alloy under dynamic compression was discussed. The ballistic impact experiment has proved that the 80W-14Cu-6Zn alloy exhibits remarkable "self-sharpening" capacity. (C) 2014 Elsevier B.V. All rights reserved.
英文摘要	In order to improve the "self-sharpening" capacity of the tungsten heavy alloy (WHA) for kinetic energy projectile application, the WHAs should have not only high strength but also proper critical shear failure strain. For the purpose of fabricating the WHAs with high strength and proper critical shear failure strain, in the present study, the WHA composed of 80W-14Cu-6Zn was prepared by W skeleton infiltrated of Cu-Zn alloy. The microstructure and mechanical properties were systematically investigated. Microstructure analysis shows that W particles are connected to form W skeleton, and the interstice of W skeleton is filled up with a phase Cu-Zn alloy which has lamellar feature resulting from spinodal decomposition during the preparation process. Due to the solid solution strengthening effect of Zn in the matrix, the static yield strength and the dynamic yield strength of the 80W-14Cu-6Zn alloy are respectively enhanced by 200 MPa and 400 MPa compared with those of the 80W-20Cu alloy. Moreover, due to the proper ductility of the Cu-Zn alloy matrix, under the uniaxial dynamic compression test, the critical shear failure strain of the 80W-14Cu-6Zn alloy is effectively controlled within 0.2-0.4, which is beneficial to promote "self-sharpening" effect during the penetration process for kinetic energy projectile application. Additionally, the failure mechanism of the 80W-14Cu-6Zn alloy under dynamic compression was discussed. The ballistic impact experiment has proved that the 80W-14Cu-6Zn alloy exhibits remarkable "self-sharpening" capacity. (C) 2014 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	TUNGSTEN HEAVY ALLOY ; HOT-HYDROSTATIC EXTRUSION ; ADIABATIC SHEAR-BAND ; DEFORMATION ; COMPOSITES ; BEHAVIOR ; TORSION ; SUSCEPTIBILITY
收录类别	SCI
原文出处	://WOS:000337644000057
语种	英语
WOS记录号	WOS:000337644000057
公开日期	2014-08-28
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/10901]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.BeiHang Univ, Sch Reliabil & Syst Engn, Sci & Technol Lab Reliabil & Environm Engn, Beijing 100191, Peoples R China 2.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Fang, Xiaoliang,Liu, Jinxu,Wang, Xing,et al. Study on improving "self-sharpening" capacity of W-Cu-Zn alloy by the pressureless infiltration method[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2014,607(1):454-459.
APA	Fang, Xiaoliang,Liu, Jinxu,Wang, Xing,Li, Shukui,&Zheng, Lingling.(2014).Study on improving "self-sharpening" capacity of W-Cu-Zn alloy by the pressureless infiltration method.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,607(1),454-459.
MLA	Fang, Xiaoliang,et al."Study on improving "self-sharpening" capacity of W-Cu-Zn alloy by the pressureless infiltration method".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 607.1(2014):454-459.