Effect of SiCp Addition on Microstructure and Mechanical Properties of Near Beta Titanium Alloy

被引：0

作者：

Zhang Changjiang ^{[1
]}

Lin Sibo ^{[1
]}

Zhang Shuzhi ^{[1
]}

Hou Zhaoping ^{[1
]}

Du Zhaoxin ^{[2
]}

Chen Yuyong ^{[3
]}

机构：

[1] Taiyuan Univ Technol, Taiyuan 030024, Peoples R China

[2] Inner Mongolia Univ Technol, Hohhot 010051, Peoples R China

[3] Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2017年 / 46卷 / 05期

关键词：

titanium alloy; SiCp; microstructure; mechanical properties; MATRIX COMPOSITES; TENSILE PROPERTIES; HEAT-TREATMENT; PARTICLES; EVOLUTION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A near beta titanium alloy reinforced with different mass fractions of SiCp was prepared by vacuum induction melting technology. The addition of SiCp was 0 wt%, 0.1 wt%, 0.4 wt% and 1.0 wt%. Effect of SiCp addition on microstructure and mechanical properties of the near beta titanium alloy was investigated by XRD, SEM, Vicker's micro-hardness tester and Instron universal testing machine. Results show that the composite material with different SiCp addition is composed of alpha-Ti, beta-Ti and TiC phase. The addition of SiCp refines prior)3 grain size obviously, which decreases from 639 to 323 gm with the addition of SiCp increasing from 0 to 1.0 wt%. Moreover, the near beta titanium alloy with addition of SiCp exhibits higher Vicker hardness and compression strength but worse plasticity compared with unreinforced titanium alloys. The composites exert the strengthening effects of both particulate reinforcements of TiC and Si elements through solid solution hardening and fine grain hardening.

引用

页码：1271 / 1276

页数：6

共 25 条

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