Microstructure and properties of Al-based metal matrix composites reinforced by Al60Cu20Ti15Zr5 glassy particles by high pressure hot pressing consolidation

被引：23
|
作者：
Yuan, M. [1 ,2 ]
Zhang, D. C. [1 ,2 ]
Tan, C. G. [1 ,2 ]
Luo, Z. C. [1 ,2 ]
Mao, Y. F. [1 ,2 ]
Lin, J. G. [1 ,2 ]
机构：
[1] Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China
[2] Xiangtan Univ, Fac Mat & Opt Elect Phys, Xiangtan 411105, Hunan, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 590卷
关键词：
Al-based metal matrix composite; Metallic glass; High pressure hot pressing; MECHANICAL-PROPERTIES; NB; ALLOYS;
D O I：
10.1016/j.msea.2013.10.049
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In order to obtain highly dense metal matrix composites (MMCs) reinforced by glassy particles without crystallization, an Al-based MMC with pure Al powders reinforced with different amounts of ball milled Al60Cu20Ti15Zr5 glassy powders were produced by hot press at the temperatures within the supercooled liquid region under a high pressure of 5 GPa. The microstructures of the MMCs were investigated and the mechanical properties were evaluated by room temperature compression tests. It is found that the consolidation temperature and the Al content have a significant influence on the consolidation quality of the composites, and the high pressure can suppress the crystallization of the glassy particles during the consolidation. The densification is 91% and 96% for the composites containing 40 vol% Al and 60 vol% Al consolidated at 390 degrees C, respectively. The composites containing 40 vol% Al and 60 vol% Al consolidated at 390 degrees C exhibit the ultimate strength of 353 and 281 MPa, respectively. Moreover, the composites containing 60 vol% Al display a good plasticity at room temperature. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：301 / 306
页数：6
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