Microstructure and mechanical properties of liquid-phase sintered W@NiFe composite powders | |
Deng, Nan1,2; Li, Jianqiang2; Wang, You1; Qu DD(屈丹丹)3; Zhang K(张坤)3; Zhou, Zhangjian1 | |
发表期刊 | INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS |
2021-02-01 | |
卷号 | 95页码:9 |
ISSN | 0263-4368 |
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. |
关键词 | W based heavy alloys Gradient structure Electrodeposition Core-shell composite powder W-W contiguity Particle coalescence Solution-reprecipitation |
DOI | 10.1016/j.ijrmhm.2020.105447 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000612828800002 |
关键词[WOS] | HEAVY ALLOYS ; CU COMPOSITES ; FABRICATION ; KINETICS |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
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] |
项目资助者 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
论文分区 | 一类 |
RpAuthor | Zhou, Zhangjian |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/86092 |
专题 | 先进制造工艺力学实验室 |
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 DD,Zhang K,&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. |
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