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Hindi Research Article
Microstructure, Mechanical Properties and Corrosion Behavior of As-Extruded PM Sicp/Al-Mg-Cu-Sn Composites
Shen RJ1,2, Xiao DH1*, Zhou PF1 and Song M1,21State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China
2Shenzhen Research Institute, Central South University, Shenzhen, China
- Corresponding Author:
- Xiao DH
State Key Laboratory of Powder Metallurgy
Central South University, Changsha, China
Tel: +86-731-88877880
Fax: +86-731-88710855
E-mail: daihongx@csu.edu.cn
Received date: March 20, 2016; Accepted date: May 30, 2016; Published date: June 06, 2016
Citation: Shen RJ, Xiao DH, Zhou PF, Song M (2016) Microstructure, Mechanical Properties and Corrosion Behavior of As-Extruded PM Sicp/Al-Mg-Cu-Sn Composites. J Powder Metall Min 5:141. doi:10.4172/2168-9806.1000141
Copyright: © 2016 Shen RJ, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
SiC particle reinforced powder metallurgy (PM) Al-Mg-Cu-Sn matrix composites were fabricated by hot-press sintering and hot extrusion. The effects of solution treatment temperature and SiC particle content on the microstructure, mechanical properties and corrosion behavior of the composites were studied using scanning electron microscopy, Vickers hardness testing, tensile testing and electrochemical experiments. The results show that increasing SiC particle content improves the tensile strength of the Al-Mg-Cu-Sn matrix composites between room temperature and cryogenic temperature. The yield strength of Al-Mg-Cu-Sn composite with 10 vol.% SiC particle content between at 293 K and 77 K increases from 63 MPa to 276 MPa and 106 MPa to 327 MPa, respectively. The solution treatment temperature distinctly affects the Vickers hardness of the SiCp/Al-Mg-Cu-Sn composites. The maximum Vickers hardness of the 10 vol.% SiCp/Al-Mg-Cu-Sn composite is 92 HV after solution treatment at 773 K followed by ageing. The corrosion behavior of Al-Mg-Cu-Sn matrix composites is affected by both the SiC particle content and solution treatment temperature
