Development and Characterization of Al_2O_3 Dispersed Al/Mg/Cu/Ti Matrix Composite  

作　　者：Sumit Chabri Subhranshu Chatterjee Santanu Pattanayak Himel Chakraborty Nandagopal Bhowmik Arijit Sinha 

机构地区：[1]Department of Metallurgy and Materials Engineering,Bengal Engineering and Science University [2]School of Materials Science and Engineering,Bengal Engineering and Science University

出　　处：《Journal of Materials Science & Technology》2013年第11期1085-1090,共6页材料科学技术（英文版）

摘　　要：The effect of dispersion with different weight fractions of Al2O3 particles in metallic matrices （AI/Mg/Ti/Cu） fabricated by powder metallurgy was investigated. In the case of 15 wt% Al2O3 reinforced composites, peak hardness was attained which subsequently decreased with increasing the content of Al2O3. A correlation between the microhardness and nanomechanical properties at submicron scale was examined for all the composites. Specific strength and specific modulus were measured in order to figure out the performance of the composites.The effect of dispersion with different weight fractions of Al2O3 particles in metallic matrices （AI/Mg/Ti/Cu） fabricated by powder metallurgy was investigated. In the case of 15 wt% Al2O3 reinforced composites, peak hardness was attained which subsequently decreased with increasing the content of Al2O3. A correlation between the microhardness and nanomechanical properties at submicron scale was examined for all the composites. Specific strength and specific modulus were measured in order to figure out the performance of the composites.

关 键 词：Metal matrix composites Powder metallurgy HARDENING COARSENING HARDNESS NANOINDENTATION 

分 类 号：TB33[一般工业技术—材料科学与工程]