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Microstructure and mechanical properties of liquid-phase sintered W@NiFe composite powders
Deng, Nan1,2; Li, Jianqiang2; Wang, You1; Qu, DanDan3; Zhang, Kun3; Zhou, Zhangjian1
2021-02-01
Source PublicationINTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
ISSN0263-4368
Volume95Pages:9
AbstractW-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.
KeywordW based heavy alloys Gradient structure Electrodeposition Core-shell composite powder W-W contiguity Particle coalescence Solution-reprecipitation
DOI10.1016/j.ijrmhm.2020.105447
Language英语
WOS KeywordHEAVY ALLOYS ; CU COMPOSITES ; FABRICATION ; KINETICS
Funding ProjectNational Key Research and Development Program of China[2017YFC0703205] ; National Natural Science Foundation of China[51501179] ; National Natural Science Foundation of China[11802309]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
WOS IDWOS:000612828800002
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43530
Collection中国科学院过程工程研究所
Corresponding AuthorZhou, Zhangjian
Affiliation1.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
Recommended Citation
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.
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