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Effects of SiC Particle Volume Fraction on Microstructure and Mechancial Properties of SiCp/6061Al Composites
Integrated Ferroelectrics ( IF 0.7 ) Pub Date : 2020-08-05 , DOI: 10.1080/10584587.2020.1728678
Lulu Dong 1 , Guofa Mi 1 , Changyun Li 1 , Lei Xu 1 , Juanjuan Wei 1
Affiliation  

Abstract The SiCp/6061Al composites with volume fractions of 10%, 20%, 30% and 40% were prepared by power metallurgy method. The effects of the volume fraction of SiCp on microstructure and mechanical properties were studied by means of phase analysis, microstructure observation, hardness test, friction test, wear and tensile test. The results show that the SiC particles distribute uniformly in the matrix and the interface bonding between the matrix and the reinforcement was exceptional. With the increase of the volume fracture of SiC particles, the distribution uniformity decreases, the hardness increases, the elongation decreases, with the tensile strength and wear resistance were increasing before slowly decrease. If the volume fracture of SiC particles is 30%, the comprehensive mechanical property is best that the hardness is 97.9 HV, the tensile strength 243 MPa, the elongation is 2.9% and wear rate is 1.21 × 10–5 g/m.

中文翻译:

SiC颗粒体积分数对SiCp/6061Al复合材料组织和力学性能的影响

摘要 采用粉末冶金法制备了体积分数为10%、20%、30%和40%的SiCp/6061Al复合材料。通过物相分析、显微组织观察、硬度试验、摩擦试验、磨损和拉伸试验等方法研究了SiCp体积分数对显微组织和力学性能的影响。结果表明,碳化硅颗粒在基体中分布均匀,基体与增强体的界面结合良好。随着碳化硅颗粒体积断裂的增加,分布均匀性降低,硬度增加,延伸率降低,抗拉强度和耐磨性先增加后缓慢下降。如果碳化硅颗粒的体积断裂率为30%,则综合力学性能最好,硬度为97.9 HV,
更新日期:2020-08-05
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