Effect of Sintering Temperature on Microstructure and Mechanical Properties of Al2O3/TiAl In Situ Composites

被引：0
|
作者：
Xiang, Liuyi [1 ]
Wang, Fen [1 ]
Zhu, Jianfeng [1 ]
Wang, Xiaofeng [1 ]
机构：
[1] Shaanxi Univ Sci & Technol, Minist Educ, Key Lab Auxiliary Chem & Technol Chem Ind, Xian 710021, Peoples R China
来源：
ECO-MATERIALS PROCESSING AND DESIGN XII | 2011年 / 695卷
关键词：
Al2O3/TiAl composites; sintering temperature; Microstructure; Mechanical properties; TIAL-TI5SI3; ALLOYS;
D O I：
10.4028/www.scientific.net/MSF.695.227
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Al2O3/TiAl composites were successfully fabricated by hot-press-assisted exothermic dispersion method with powder mixtures of Ti, Al, TiO2 and Cr2O3 as raw materials. The effect of sintering temperature on the microstructures and mechanical properties of Al2O3/TiAl composites has been investigated. The results show that the Rockwell hardness and density of the composites increased with increasing sintering temperature. But the flexural strength and fracture toughness peaked at 825 MPa and 7.29 MPa.m(1/2), respectively, when the sintering temperature reached to 1300 degrees C.
引用
收藏
页码：227 / 230
页数：4
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