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Mechanical properties and fracture characteristics of Wf/Cu82Al10Fe4Ni4 composites

YANG CHUN MEI MEI1, ZHANG YANG2,* , WU ZHE ZHE1, MA YAN YAN1, LIU QIAN JUN1

Affiliation

  1. College of Mechanical and Electrical Engineering , Northeast Forestry University, Harbin 1500 40 , China
  2. College of Science, Northeast Forestry University, Harbin 1500 40 , China

Abstract

Tungsten fiber reinforced Cu82Al10Fe4Ni4 composites were fabricated by penetrating casting method . Mechanical properties and fracture characteristic s of the composites were discuss ed by t ensile test and bending test . T he microstructure and fracture characteristic w ere investigated by Transmission electron microscopy(TEM) and Scanning electron microscopy(SEM). Microstructure observation of Wf/Cu82Al10Fe4Ni4 composites revealed that a small amount of tungsten diffused into the Fe Ni solid solution precipitated on the surface of tungsten fibers. The interface of the composite remained good after tensile test and bending test. The experimental results show ed that the interface between tungsten fibers and matrix alloy was compact, and the interface exhibited high strength under pull and bending force . The composites occurred brittle fracture in tensile test, and tensile strength was 1300Mpa. The composites also occurred brittle fracture in bending test, and bending strength was 1540Mpa..

Keywords

Wf/Cu82Al10Fe4Ni4 composites, Microstructure, Interface, Mechanical properties.

Citation

YANG CHUN MEI MEI, ZHANG YANG, WU ZHE ZHE, MA YAN YAN, LIU QIAN JUN, Mechanical properties and fracture characteristics of Wf/Cu82Al10Fe4Ni4 composites, Optoelectronics and Advanced Materials - Rapid Communications, 9, 11-12, November-December 2015, pp.1479-1482 (2015).

Submitted at: Dec. 3, 2013

Accepted at: Oct. 28, 2015