Skin effect of WC-8 wt% Co alloy by microwave sintering

被引：8
作者：
Bao, Rui [1 ,2 ]
Yi, Jian-Hong [1 ,2 ]
Peng, Yuan-Dong [2 ]
Li, Feng-Xian [1 ]
Li, Shang [1 ]
Li, Shao-Yu [1 ]
机构：
[1] Kunming Univ Sci & Technol, Sch Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China
[2] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
来源：
RARE METALS | 2022年 / 41卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Microwave sintering; Tungsten carbide; Microstructure; Solubility; Skin effect; MECHANICAL-PROPERTIES; TUNGSTEN CARBIDE; DENSIFICATION; POWDERS; FE;
D O I：
10.1007/s12598-015-0488-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To investigate the microwave effect on the WC-Co alloys, WC-8 wt% Co alloy was fabricated by microwave sintering (MWS) in this paper. The results show that decarburization layer forms on the surface of the microwave-sintered samples. WC grain coarsening in the core area is strongly suppressed by the decarburization effect. In addition, the microstructure of the MWS-fabricated alloy was compared to that of the alloy sintered by vacuum sintering (VS). Microstructural investigations by transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS) show that more tungsten (29.50 wt%) is dissolved in the cobalt binder phase in microwave-sintered alloy than that in the vacuum-sintered samples. Finally, the formation mechanism of the surface layer by skin effect was discussed.
引用
收藏
页码：1364 / 1368
页数：5
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