Dry Sliding Wear Properties of AZ31-Mg2Si Magnesium Matrix Composites

Dry Sliding Wear Properties of AZ31-Mg2Si Magnesium Matrix Composites
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AZ31-Mg2Si镁基复合材料的干滑动磨损性能

DOI:
10.1007/s11665-016-2263-5
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发表时间:
2016-08
影响因子:
2.3
通讯作者:
Wang Qudong
Wang Qudong
中科院分区:
材料科学4区
文献类型:
--
作者:
Guo Wei;Wang De;Fu Yuan;Zhang Li;Wang Qudong

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以AZ 31镁合金和Si颗粒为原料,采用重力铸造法制备了AZ 31-Mg 2Si原位复合材料。几个参数,如硅含量,法向载荷,和环境温度,变化,以研究它们对复合材料的干滑动磨损性能的影响。研究了复合材料的拉伸性能和硬度。结果表明,随着Mg 2Si相的尺寸和数量的增加,AZ 31-Mg 2Si复合材料的耐磨性、屈服强度和硬度均提高。当环境温度从25 ° C升高到190 °C时,由于AZ 31基体的软化,复合材料的耐磨性和抗拉强度逐渐降低。
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.
DOI: 10.4028/www.scientific.net/ssp.203-204.198
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影响因子: --
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