Dry Sliding Wear Properties of AZ31-Mg2Si Magnesium Matrix Composites |
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| Authors: | Wei Guo De Wang Yuan Fu Li Zhang Qudong Wang |
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| Affiliation: | 1.Institute of Applied Physics,Jiangxi Academy of Sciences,Nanchang,China;2.School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai,China |
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| Abstract: | AZ31-Mg2Si in situ composites were prepared from AZ31 Mg alloy and Si particles by a gravity casting method. Several parameters, such as Si content, normal load, and environmental temperature, were varied in order to study their effects on the composite dry sliding wear properties. Tensile properties and hardness of the composites were also investigated. The obtained results showed that the wear resistance, yield strength, and hardness of the AZ31-Mg2Si composites increased with size and quantity of the Mg2Si phase. However, when the environmental temperature increased from 25 to 190 °C, the composite wear resistance and ultimate tensile strength gradually decreased due to softening of the AZ31 matrix. |
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