硅线石/2024液态挤压成形件的摩擦学特性

来源期刊：中国有色金属学报1997年第4期

论文作者：罗守靖 杜之明 张磊 霍文灿

文章页码：127 - 131

关键词：硅线石颗粒 铝合金 搅拌 半固态挤压 摩擦学特性

Key words：sillimaniteparticulate aluminum alloy stirring semi-solid extrusion composite tribological properties

摘    要：以2024铝合金为基体，使之与硅线石颗粒搅融混合成均匀浆料，经半固态挤压成形，获得一种新型的复合材料制件。对它进行摩擦磨损性能测定后发现，虽然增强体硅线石颗粒是直接从矿石开采获得的，但由于采用搅融混合-半固态挤压新技术 ，其耐磨性明显高于ZQSn6-6-3铜合金。为此，对其摩擦学特性进行了研究，以便为硅线石颗粒作为一种廉价的增强剂应用提供依据。

Abstract: 2024 aluminium alloy was used as matrix,and mixed with sillimanite particulates by stirring to form semi-solid slurry,then the slurry underwent extrusion. By this way, sound composite workpieces were obtained, and the tribological properties were measured. Although sillimanite paricaulate was gained from natural minerals,the friction and wear properties of the composites were better than those of ZQSn6-6-3,because of the use of stirring mixture-semisolid extrusion. Therefore, the experimental observation and the theoretical analysis of the wear and friction mechanism were undertaken.