Microstructure and mechanical properties of liquid-phase sintered W@NiFe composite powders

doi:10.1016/j.ijrmhm.2020.105447

	Microstructure and mechanical properties of liquid-phase sintered W@NiFe composite powders
	Deng, Nan 1,2; Li, Jianqiang 2; Wang, You 1; Qu, DanDan 3; Zhang, Kun 3; Zhou, Zhangjian 1
刊名	INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
	2021-02-01
卷号	95 页码:9
关键词	W based heavy alloys Gradient structure Electrodeposition Core-shell composite powder W-W contiguity Particle coalescence Solution-reprecipitation
ISSN号	0263-4368
DOI	10.1016/j.ijrmhm.2020.105447
英文摘要	W-Ni-Fe heavy alloys were obtained by liquid-phase sintering of W@NiFe composite powders. The face-centered cubic NiFe alloys were deposited as a shell on the core of tungsten particle to form W@NiFe composite powders by intermittently electrodeposition. After liquid-phase sintering, W-Ni-Fe heavy alloys had more gradient morphology and shape distortion as the holding time increased. The bending strength and hardness distributed graded at 1470 degrees C holding for 0.5 h. Top layer of gradient W-Ni-Fe heavy alloys at 1470 degrees C holding for 0.5 h showed low W-W contiguity, no normal growth of W particle size and high sintered density, which led to excellent bending strength (1245 MPa) and hardness (340 HV0.2). The structure and composition of W@NiFe composite powders and the optimization of sintering process parameters were analyzed and discussed. The sintering behavior of W@NiFe composite powders were also investigated in details.
资助项目	National Key Research and Development Program of China[2017YFC0703205] ; National Natural Science Foundation of China[51501179] ; National Natural Science Foundation of China[11802309]
WOS关键词	HEAVY ALLOYS ; CU COMPOSITES ; FABRICATION ; KINETICS
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000612828800002
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/43529]
专题	中国科学院过程工程研究所
通讯作者	Zhou, Zhangjian
作者单位	1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Deng, Nan,Li, Jianqiang,Wang, You,et al. Microstructure and mechanical properties of liquid-phase sintered W@NiFe composite powders[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,2021,95:9.
APA	Deng, Nan,Li, Jianqiang,Wang, You,Qu, DanDan,Zhang, Kun,&Zhou, Zhangjian.(2021).Microstructure and mechanical properties of liquid-phase sintered W@NiFe composite powders.INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,95,9.
MLA	Deng, Nan,et al."Microstructure and mechanical properties of liquid-phase sintered W@NiFe composite powders".INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS 95(2021):9.