摘要
为了对比新型碳/铝复合材料和传统的铝合金活塞材料ZL105的性能差异,对组织成分、导热性、热膨胀性、摩擦磨损性和室温压缩性进行了分析。结果表明:新型碳/铝复合材料含碳量多达53.3%,相比ZL105,导热性相当,热膨胀系数降低66%,摩擦系数减少50%,密度减少20%,室温抗压强度达到240 MPa。综合以上数据,表明该新型碳/铝复合材料的热膨胀小、耐磨性好、质量轻,是一种理想的活塞材料。
In order to compare the performance difference between new type carbon/aluminum composite and traditional ZL105 piston material, the microstructure composition, thermal conductivity, thermal expansion, friction and wear resistance and room temperature compression resistance were analyzed. The results show that： the carbon content of new carbon/aluminum composite is 53.3%. Compared with ZL105 piston material, the thermal conductivity is equivalent. The thermal expansion coefficient decreases by 66%. The friction coefficient and density reduces by 50% and 20% respectively. The room temperature compression strength reaches 240 MPa. Based on the above data, the new carbon/aluminum composite has lower thermal expansion coefficient, the wear resistance is good and the quality is light, which is an ideal piston material.
出处
《热加工工艺》
CSCD
北大核心
2017年第8期127-130,共4页
Hot Working Technology
关键词
活塞
碳/铝复合材料
摩擦系数
热膨胀系数
导热性
piston
C/Al composite
friction coefficient
thermal expansion coefficient
thermal conductivity
