Effect of Addition (MoSi2) on the Resistivity and Mechanical Properties of Cu/MoSi2 Composite Produced by Accumulative Rroll Bonding (ARB) Process

Subject Areas : journal of New Materials

A.H. Eslami ¹ (دانشجوی کارشناسی ارشد مهندسی مکانیک دانشگاه آزاد اسلامی شیراز)
M.M. Moshksar ² (استاد مهندسی مکانیک دانشگاه آزاد واحد مرودشت.)
S.M. Zebarjad ³ (استاد دانشکده مهندسی مواد دانشگاه شیراز.)

Received: 2013-09-16 Accepted : 2013-09-16 Published : 2013-09-23

Keywords: Metal-matrix composites, Mechanical and resistivity properties, Accumulative roll bonding (ARB),

Abstract :

Techniques of severe plastic deformation have been of continual interest in the production of novel metallic microstructures. Among these, accumulative roll bonding has been extensively used to produce multi-layered composites. In the present study, a new manufacturing process for Cu/MoSi₂-1vol% and 1.5vol% MoSi₂ composites was developed by using Copper and nano sized MoSi₂ particles as starting materials. After five ARB passes, it was showed the MoSi₂ particles properly distributed in the copper matrix. With increasing strain during ARB passes strength and elongation of these composites increased. Structure and mechanical properties of these composites were studied within different stages of ARB process. Also, Electrical resistivity of the samples was measured by four point probe method

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