TiC增强钨基复合材料微观结构及力学性能

种法力

doi:10.15980/j.tzzz.2014.06.001

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TiC增强钨基复合材料微观结构及力学性能
Microstructures and Mechanical Properties of TiC Reinforced W Matrix Composite
2014年34卷第6期页码：574-577
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.06.001

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[1]种法力.TiC增强钨基复合材料微观结构及力学性能[J].特种铸造及有色合金,2014,34(06):574-577.

Chong Fali. Microstructures and Mechanical Properties of TiC Reinforced W Matrix Composite[J]. Special Casting & Nonferrous Alloys, 2014,34(6):574-577.
[1]种法力.TiC增强钨基复合材料微观结构及力学性能[J].特种铸造及有色合金,2014,34(06):574-577. DOI： 10.15980/j.tzzz.2014.06.001.

Chong Fali. Microstructures and Mechanical Properties of TiC Reinforced W Matrix Composite[J]. Special Casting & Nonferrous Alloys, 2014,34(6):574-577. DOI： 10.15980/j.tzzz.2014.06.001.

摘要

利用高能球磨和热压烧结方法制备TiC/W基复合材料

通过微观形貌、相对密度、显微硬度、杨氏模量和抗弯强度等表征方法分析了TiC弥散增强钨基复合材料的效果。结果发现

TiC弥散相有效地抑制了W晶粒的长大

断裂模式转为穿晶断裂

有效增强了W基合金材料的性能

特别是纳米TiC质量分数为1%时

增强效果较显著。与纳米TiC相比

微米TiC增强效果不明显。

Abstract

TiC dispersedly strengthened tungsten matrix composites were fabricated with the help of the high energy milling and vacuum hot pressing.The microstructure and mechanical properties such as relative density

micro-hardness

Young′s modulus and bending strength of the composites were investigated.The results show that a small addition of TiC can change the fracture mode from intergranular type to transgranular type as a result of inhibiting effectively the growth of W particle

improving the mechanical properties of TiC/W

especially for 1% n-TiC/W composite.Compared with the n-TiC

the effects of μ-TiC on the mechanical properties can be neglected.