A Comparison between B4C-TiB2-Al Composite and B4C-Al Composite on Microstructure and Mechanical Properties

被引：0
|
作者：
Lu Peng
Yu Fang
Ru Hongqiang
机构：
来源：
MECHANICAL, MATERIALS AND MANUFACTURING ENGINEERING, PTS 1-3 | 2011年 / 66-68卷
关键词：
B4C-Al; TiB2; vacuum infiltration; microstructure; mechanical properties; BORON-CARBIDE; MATRIX COMPOSITES;
D O I：
10.4028/www.scientific.net/AMM.66-68.255
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
B4C-Al and B4C-TiB2-Al composites were fabricated by infiltrating aluminum into porous B4C and B4C-TiB2 preforms in vacuum. The effect of TiB2 addition on the microstucture and mechanical properties of the B4C-Al composites were investigated. The flexural strength and the fracture toughness of composite improved greatly as the result of TiB2 addition. The Till, addition inhibited the reaction between B4C and Al. The infiltrated aluminum addition was the leading reason for the fracture toughness improvement of the composites. Inter/transgranular fracture mode with many tear ridges and dimples was showing in the fracture surface of the B4C-TiB2-Al composite. The relationships between the microstructures and the mechanical properties of the B4C-TiB2-Al composites were discussed.
引用
收藏
页码：255 / 259
页数：5
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