Microstructural Characterization and Tensile Behavior of Rutile (TiO2)-Reinforced AA6063 Aluminum Matrix Composites Prepared by Friction Stir Processing

被引：26

作者：

Abraham, Sahayam Joyson ^{[1
]}

Dinaharan, Isaac ^{[2
]}

Selvam, Jebaraj David Raja ^{[3
]}

Akinlabi, Esther Titilayo ^{[2
]}

机构：

[1] VV Coll Engn, Dept Mech Engn, Tisayanvilai 627657, Tamil Nadu, India

[2] Univ Johannesburg, Dept Mech Engn Sci, Auckland Pk Kingsway Campus, ZA-2006 Johannesburg, Gauteng, South Africa

[3] Karunya Inst Technol & Sci, Dept Mech Engn, Coimbatore 641114, Tamil Nadu, India

来源：

ACTA METALLURGICA SINICA-ENGLISH LETTERS | 2019年 / 32卷 / 01期

关键词：

Aluminum matrix composites; Friction stir processing; Rutile; Microstructure; Tensile strength; MECHANICAL-PROPERTIES; SURFACE COMPOSITES; WEAR PROPERTIES; NANOCOMPOSITE; ALLOY; PERFORMANCE; PREDICTION;

D O I：

10.1007/s40195-018-0806-5

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Rutile (TiO2) particle-reinforced aluminum matrix composites were prepared by friction stir processing. The microstructure was studied using conventional and advanced characterization techniques. TiO2 particles were found to be dispersed uniformly in the composite. Clusters of TiO2 particles were observed at a higher particle content of 18 vol%. The interface between the TiO2 particle and the aluminum matrix was characterized by the absence of pores and reactive layer. Sub-grain boundaries, ultra-fine grains and dislocation density were observed in the composites. TiO2 particles improved the mechanical properties of the composites. However, a drop in tensile strength was observed at a higher particle content due to cluster formation. All the prepared composites exhibited ductile mode of fracture.

引用

页码：52 / 62

页数：11

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