Fabrication and Characterization ofCU/B4C Surface Dispersion Strengthened Composite using Friction Stir Processing

Archives of Metallurgy and Materials

R. Sathiskumar¹  N. Murugan¹  S.J. Vijay²  I. Dinaharan³ 

[1] DEPARTMENT OF MECHANICAL ENGINEERING, COIMBATORE INSTITUTE OF TECHNOLOGY, COIMBATORE – 641014, TAMIL NADU, INDIA;SCHOOL OF MECHANICAL SCIENCES, KARUNYA UNIVERSITY, COIMBATORE – 641114, TAMIL NADU, INDIA;V V COLLEGE OF ENGINEERING, TISAYANVILAI 627 657, TAMIL NADU, INDIA

关键词: Keywords: Surface dispersion strengthened composite;    Friction stir processing;    Copper;    Boron carbide;   

DOI  :  10.2478/amm-2014-0014

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

Friction stir processing has evolved as a novel method to fabricate surface metal matrix composites. The feasibility to make B4C particulate reinforced copper surface matrix composite is detailed in this paper. The B4C powders were compacted into a groove of width 0.5 mm and depth 5 mm on a 9.5 mm thick copper plate. A tool made of high carbon high chromium steel; oil hardened to 63 HRC, having cylindrical profile was used in this study. A single pass friction stir processing was carried out using a tool rotational speed of 1500 rpm, processing speed of 40 mm/min and axial force of 10 kN. A defect free interface between the matrix and the composite layer was achieved. The optical and scanning electron micrographs revealed a homogeneous distribution of B4C particles which were well bonded with the matrix. The hardness of the friction stir processed zone increased by 26% higher to that of the matrix material.

【 授权许可】

Unknown