摘要
采用“冷压烧结+热挤压”的粉末冶金法制备出Al-10%Fe、Al-20%Fe复合材料,研究了Al-10%Fe、Al-20%Fe复合材料的孔隙率、抗拉强度、伸长率、硬度和耐磨行为。结果表明:随着Fe含量增加,Al-Fe复合材料的孔隙率增高,抗拉强度先升后降,伸长率下降,硬度和耐磨性增高,对偶件的减摩性能下降;Al-10%Fe和Al-20%Fe的耐磨性能分别为QSn6.5-0.4的13.2和23.0倍;Al-Fe复合材料磨损表面呈Al基体+Fe颗粒+孔隙的耐磨组织。
The porosity, ultimate tensile strength, elongation, hardness and sliding wear-behavior of Al-Fe composite fabricated by powder metallurgy followed by hot extrusion were investigated. The results show that with the increase of Fe volume fraction, the porosity ,ultimate tensile strength, hardness and sliding wear-property are increased and the tensile elongation is decreased. The traction-wear of Al-10% Fe and Al-20% Fe composite are respectively 13.2 times and 23.0 times of QSn6. 5-0. 4. A wear-resistance microstructure consisting of aluminum matrix, Fe particle and porosity is found in the wear surface of the Al-Fe composite.
出处
《润滑与密封》
CAS
CSCD
北大核心
2007年第2期153-155,共3页
Lubrication Engineering
基金
南通大学自然科学基金项目(05Z038)
