Microstructure and phase stress partition of Mo fiber reinforced CuZnAl composite

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:628

Article

Yang, Feng^1,2  Ni, Dingrui³  Hao, Shijie^1,2  Li, Sirui²  Ma, Zongyi³  Liu, Yinong⁴  Feng, Chun⁵  Cui, Lishan^1,2 

[1] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

[2] China Univ Petr, Dept Mat Sci & Engn, Beijing 102249, Peoples R China

[3] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[4] Univ Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, Australia

[5] Univ Sci & Technol Beijing, Dept Mat Phys & Chem, Beijing 100083, Peoples R China

关键词: Fiber reinforced composites;    Synchrotron;    Shape memory alloys;    Mechanical properties;    CuZnAl;   

DOI  :  10.1016/j.msea.2015.01.068

来源: Elsevier

【 摘 要 】

A Mo fiber reinforced CuZnAl composite was prepared by means of friction stir processing and wire drawing. Reinforcing effect of the Mo fiber and phase stress partition in the composite were investigated by means of in-situ synchrotron X-ray diffraction. The maximum elastic strain of the Mo fiber achieved was 1.8%, implying a component stress of 550 MPa on the fibers. The Mo fibers, with a volume fraction of 10%, carried 80% of stress fraction during tensile deformation. The change of modulus caused by stress-induced martensitic transformation strain resulted in redistribution of the phase stress partition between Mo fibers and CuZnAl matrix. (C) 2015 Elsevier B.V. All rights reserved.

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