Transient Liquid-Phase Sintering Characteristic of W-Ni-Fe Alloy via Microwave-Assisted Heating

被引：1
|
作者：
Ma Yunzhu [1 ]
Zhang Jiajia [1 ]
Liu Wensheng [1 ]
Zhao Yaxu [1 ]
机构：
[1] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2014年 / 43卷 / 09期
基金：
中国国家自然科学基金;
关键词：
W-Ni-Fe alloy; microwave-assisted heating; transient liquid phase sintering; mechanical property; MECHANICAL PERFORMANCE;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The transient liquid-phase densification behavior and the mechanical performance of W-Ni-Fe alloy were investigated. This results show that the excellent mechanical properties and the quick densification of 93W-Ni-Fe alloy can be obtained via the microwave-assisted sintering approach in a 2.45 GHz microwave furnace. The tensile strength, the elongation, the relative density and the hardness (HRC) of samples are 1200 MPa, 16.6%, 98.6% and 42.0, respectively after the compacts are sintered at 1500 degrees C for only 5 min. The compacts can be successfully sintered in a microwave furnace with above 80% reduction in the overall processing time. Transient liquid-phase sintering by microwave-assisted heating is beneficial to saving of a lot of sintering time and accelerating of densification process, which results in W grains refinement, homogeneous microstructure and high comprehensive performances of W-Ni-Fe alloy.
引用
收藏
页码：2108 / 2111
页数：4
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