Effect of isothermal forging on fracture toughness of SiC particle reinforced aluminum matrix composite

Home > Archive>Volume 46, Issue 11, 2017 >3464-3468

Effect of isothermal forging on fracture toughness of SiC particle reinforced aluminum matrix composite
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Affiliation:National Engineering Technology Research Center for Non-ferrous Metals Composites,General Research Institute for Non-ferrous Metals,National Engineering Technology Research Center for Non-ferrous Metals Composites,General Research Institute for Non-ferrous Metals,National Engineering Technology Research Center for Non-ferrous Metals Composites,General Research Institute for Non-ferrous Metals,National Engineering Technology Research Center for Non-ferrous Metals Composites,General Research Institute for Non-ferrous Metals,National Engineering Technology Research Center for Non-ferrous Metals Composites,General Research Institute for Non-ferrous Metals,National Engineering Technology Research Center for Non-ferrous Metals Composites,General Research Institute for Non-ferrous Metals,National Engineering Technology Research Center for Non-ferrous Metals Composites,General Research Institute for Non-ferrous Metals
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Abstract:

20%SiCp/2009Al composites fabricated by powder metallurgy (PM) method were processed by isothermal forging in this paper, and the effects of different deformation on microstructure and mechanical properties were studied by optical microscopy, SEM, tensile and fracture toughness testing. The results show that, with the total strain increasing, distribution of SiC particles is better, the intensity and plasticity are significantly improved. The crack propagation paths of fracture toughness were observed by SEM, and the main crack occurred in the aluminum matrix where SiC particles agglomerated. The fracture mode of the composites combines mainly with toughness fracture of matrix and particle brittle fracture.

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[Wei Shaohua, Nie Junhui, Liu Yanqiang, Zuo Tao, Hao Xinxiang, Ma Zili, Fan Jianzhong. Effect of isothermal forging on fracture toughness of SiC particle reinforced aluminum matrix composite[J]. Rare Metal Materials and Engineering,2017,46(11):3464~3468.]
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Received:August 02,2015
Revised:September 08,2015
Adopted:October 15,2015
Online: December 13,2017
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