Enhancement in Hardness and Influence of Artificial Aging on Stir Cast Al6061-B4C and Al6061-SiC Composites

被引：0
|
作者：
Shankar, Gowri M. C. [1 ]
Shettar, Manjunath [1 ]
Sharma, S. S. [1 ]
Kini, Achutha [1 ]
Jayashree [1 ]
机构：
[1] Manipal Inst Technol, Dept Mech & Mfg Engn, Manipal 576104, Karnataka, India
来源：
MATERIALS TODAY-PROCEEDINGS | 2018年 / 5卷 / 01期
关键词：
Al6061; alloy; Aging; Composite; Micro structure; Stir casting: Intermetallics; MECHANICAL-PROPERTIES; MATRIX COMPOSITES; SIC PARTICLES; BEHAVIOR; TIME;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Present investigation focusses on individual effect of B4C and SiC on the improvement in hardness with an average size of 35-40 mu m and various weight percentage of (2, 4 and 6) Al6061 alloy composite. Composites are produced by stir casting process. The precipitation hardening effect at 100, 150 and 200 degrees C on the mechanical properties was also investigated. Optical micrographs and Brinel hardness number have been discussed. Transmission electron microscope shows precipitation of finer inter-metallic in both Al6061 alloy and its composites. Increase in percentage of both B4C and SiC reinforcement from 2-6% wt. and artificially aged at 100 degrees C shows enhancement in hardness by 150-175% due to the precipitation of intermetallic phases of alloying elements. Al6061-B4C composites show improvement in hardness as compared to Al6061-SiC composites. (C) 2017 Elsevier Ltd. All rights reserved. Selection and Peer-review under responsibility of International Conference on Advanced Materials and Applications (ICAMA 2016).
引用
收藏
页码：2435 / 2443
页数：9
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