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

文献类型：期刊论文

作者Deng, Nan2,3; Li, Jianqiang2; Wang, You3; Qu DD(屈丹丹)1; Zhang K(张坤)1; Zhou, Zhangjian3; Qu DD(屈丹丹); Zhang K(张坤)
刊名INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
出版日期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
DOI10.1016/j.ijrmhm.2020.105447
通讯作者Zhou, Zhangjian(zhouzhj@mater.ustb.edu.cn)
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.
分类号一类
WOS关键词HEAVY ALLOYS ; CU COMPOSITES ; FABRICATION ; KINETICS
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研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000612828800002
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China
其他责任者Zhou, Zhangjian
源URL[http://dspace.imech.ac.cn/handle/311007/86091]  
专题力学研究所_先进制造工艺力学重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, Beijing 100190, 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.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, 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.,屈丹丹.,张坤.,...&Zhang K.(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.

入库方式： OAI收割

来源：力学研究所

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