Preparation of High Homogeneous W-15Cu Alloy

Wang Junlong; Wang Qingxiang

doi:10.15980/j.tzzz.2017.10.003

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Preparation of High Homogeneous W-15Cu Alloy
Vol. 37, Issue 10, Pages: 1054-1057(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.10.003

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[1]王君龙,王庆相.高均匀W-15Cu合金的制备[J].特种铸造及有色合金,2017,37(10):1054-1057.

Wang Junlong, Wang Qingxiang. Preparation of High Homogeneous W-15Cu Alloy. [J]. Special Casting & Nonferrous Alloys 37(10):1054-1057(2017)
[1]王君龙,王庆相.高均匀W-15Cu合金的制备[J].特种铸造及有色合金,2017,37(10):1054-1057. DOI： 10.15980/j.tzzz.2017.10.003.

Wang Junlong, Wang Qingxiang. Preparation of High Homogeneous W-15Cu Alloy. [J]. Special Casting & Nonferrous Alloys 37(10):1054-1057(2017) DOI： 10.15980/j.tzzz.2017.10.003.

摘要

采用理论计算和试验相结合的方法研究了平均粒径为4

μm的W粉等静压压制规律

利用压制理论分析了压坯密度与压制力之间的关系

并推导出了两者之间的关系式。并据此选择了合适的压制成型参数

通过高温烧结W骨架和熔渗的方法制备了Cu含量为15%的CuW复合材料。通过SEM观察了W骨架和复合材料的显微组织

并测量了密度、硬度和电导率。结果表明

平均粒径为4

μm的W粉完全符合冷等静压压制压力与压坯密度的双对数方程

采用250MPa压力

经过1 850℃烧结W骨架后制备的CuW合金Cu含量为15%

硬度（HB）达到了221

电导率为21.98 MS/m

热导率为196 W·m

-1

·K

-1

。

Abstract

The relationship between pressing pressures and pressed densities of W powders with average size of 4

μm was investigated systemically by combining theoretical calculation with experimental analysis

and the equation was deducted based on Huang’s formation theory.According to the equation

the molding parameters were selected to prepare the W-15 Cu composites with W-skeleton sintered at high temperature and infiltration method.Microstructure of W-skeleton and the composites prepared was observed by SEM

and density

hardness and electric conductivity were measured.It can be found that after pressing

W powders with average size of 4

μm can follow the Huang’s formation theory.The Cu content in CuW composites prepared by isostatic cool pressing at 250 MPa and 1 850℃ reaches 15%

where electric conductivity

hardness（HB）and thermal conductivity reach 21.98 MS/m

221 and196 W·m

-1

·K（-1）

respectively.