Processing Optimization of the Tungsten Based Composites with the Dispersed TiC

Chong Fali

doi:10.15980/j.tzzz.2013.11.003

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Processing Optimization of the Tungsten Based Composites with the Dispersed TiC
Vol. 33, Issue 11, Pages: 1042-1045(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.11.003

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[1]种法力.球磨工艺对TiC增强钨基复合材料的影响[J].特种铸造及有色合金,2013,33(11):1042-1045.

Chong Fali. Processing Optimization of the Tungsten Based Composites with the Dispersed TiC. [J]. Special Casting & Nonferrous Alloys 33(11):1042-1045(2013)
[1]种法力.球磨工艺对TiC增强钨基复合材料的影响[J].特种铸造及有色合金,2013,33(11):1042-1045. DOI： 10.15980/j.tzzz.2013.11.003.

Chong Fali. Processing Optimization of the Tungsten Based Composites with the Dispersed TiC. [J]. Special Casting & Nonferrous Alloys 33(11):1042-1045(2013) DOI： 10.15980/j.tzzz.2013.11.003.

摘要

经机械球磨TiC增强钨基混合粉体

并通过粉体晶粒细化效果、微观组织形貌观察

及烧结体力学性能测试等

对球磨时间、球磨转速、球料比及介质比等球磨参数进行优化。研究发现

球磨时间为40

球磨转速为400

00r/min

介质比为（1.5

.5）∶1.0

球料比为（10

5）∶1.0是比较合适的机械球磨参数。在此工艺参数下

其粉体粒度均匀、表面光滑、成球状

且烧结体相对密度、抗弯强度明显提高。

Abstract

TiC dispersion strengthened tungsten matrix composites were prepared by the mechanical milling

and the optimization of the milling parameters

such as milling time

milling velocity

ball-powder ratio

the liquid to the ball ratio

was carried out based on observing the W/TiC grain size

microstructure of the powders

and testing mechanical properties of the sintered samples.The results show that the optimized milling parameters are presented as follows:the 40

0hof the milling time

the 400

00r/min of the milling speed

the 1.5

.5∶1of the liquid to the ball and the powders ratio

and the 10

5∶1of the ball to the powders ratio.And the powders present a sphere-like shape with the uniform grain size and the smooth surface.For the sintered composites after the milling

both of the relative density and the flexural strength are improved greatly.