Investigations on mechanical behavior of hot rolled Al7075/TiO2/Gr hybrid composites

被引：17

作者：

Gajakosh, Amith Kumar ^{[1
]}

Keshavamurthy, R. ^{[2
]}

Jagadeesha, T. ^{[3
]}

Kumar, R. Suresh ^{[4
]}

机构：

[1] BTLIT & M, Dept Mech Engn, Bengaluru 560099, Karnataka, India

[2] Dayananda Sagar Coll Engn, Dept Mech Engn, Bengaluru 560078, Karnataka, India

[3] NIT Calicut, Dept Mech Engn, Calicut 673601, Kerala, India

[4] BMSCE, Dept Mech Engn, Bengaluru 560019, Karnataka, India

来源：

CERAMICS INTERNATIONAL | 2021年 / 47卷 / 10期

关键词：

Aluminum alloy; Hot-rolling; Microstructure; Mechanical behavior; MICROSTRUCTURE; POWDERS;

D O I：

10.1016/j.ceramint.2020.10.236

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present work, influence of titanium dioxide (TiO2) and graphite (Gr) hybrid reinforcement on microstructure and mechanical behavior of Al7075 alloy is studied. Al7075 and its hybrid composite samples were fabricated by using stir-casting and hot rolling technique. Hot rolling was carried out at a temperature of 450 ?C with a reduction-ratio of 90%. Microstructure examination showed a good dispersion of titanium dioxide and graphite reinforcement particles with excellent bond with Al7075 matrix alloy. In case of hot rolling, both the reinforcements were found to be aligned in the direction of rolling. The microhardness and tensile strength of hybrid composites were remarkably improved in case of hot rolling compared to that of cast composites.

引用

页码：14775 / 14789

页数：15

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