Effect of Cu Addition on W-Ni-Fe Alloys Sintered at a Low Temperature

材料科学技术（英文）, 2002, 18(3): 234-236.

^1, , ^2, , ^3,

1.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology,Wuhan 430070, China

2.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology,Wuhan 430070, China

3.State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology,Wuhan 430070, China

基金项目: 国家自然科学基金(59771028)

Effect of Cu Addition on W-Ni-Fe Alloys Sintered at a Low Temperature

Keywords： W-Ni-Fe alloy

In this study, Cu was added as the third additive to lower the sintering temperature of W-Ni-Fe alloy. By adding 2 wt pct Cu, a dense 93W-3.5Ni-1.5Fe-2.0Cu tungsten alloy was obtained by hot-pressing at a low temperature of 1573 K which is a process of liquid-phase sintering. As a result, the morphology of W-Ni-Fe alloy changed obviously after the addition of Cu and the alloy had higher relative density and rupture strength. The mechanism of the densification of W-Ni-Fe-Cu alloy at the low temperature. was then mainly investigated. It was found that, part sintering activators Ni and Fe could exist in liquid form at 1573 K due to the addition of Cu, which made it easy for Ni and Fe to dissolve W and thus the full densification of W-Ni-Fe-Cu alloy at the low temperature was realized.

参考文献

[1]	L M Barker.[M].Amsterdam,1984:217.
[2]	L C Chhabildas;L M Barker.[M].Amsterdam,1988:111.
[3]	Shihui HUANG;Feng DING;Fuqian JING;YubingDONG and Zheren LI.[M].Amsterdam,1990:313.
[4]	D V Edmonds;P N Jones .[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1979,10A:289.
[5]	J.Park .[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1989,20A:837.
[6]	A Bose;R M German .[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1988,19A:2467.
[7]	Takashi Sakamoto .[J].Journal of the Japan Society of Powder and Powder Metallurgy,1990(37):878.
[8]	R M German;A Bose .[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1992,23A:211.
[9]	曲选辉,毛金英,李志林,李益民,邱光汉.MIM工艺对WNiFe高密度合金力学性能的影响[J].稀有金属材料与工程,1999(03):166-170.
[10]	Jueqi YU;Wenzhi YI;Bangdi CHEN;HongjianCHEN.The Phase Diagrams of Binary Alloys,edited and translated,Publishing House of Shanghai Science and Technology[M].Shanghai(in Chinese),1987:338.
[11]	Huaping XIONG .[J].Journal of Materials Science and Technology,1999,15:1.
[12]	Peiyun HUANG.Theory of Powder Metallurgy,Publishing House of Metallurgical Industry[M].Beijing(in Chinese),1982:308.
[13]	Jinglian FAN .[J].材料导报,1999,13:13.

上一张下一张

计量

下载量()
访问量()

作者相关

在本站搜索
在百度学术搜索
在万方数据库搜索
在CNKI搜索

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Effect of Cu Addition on W-Ni-Fe Alloys Sintered at a Low Temperature

参考文献