SiC 粒子強化 Al 合金の機械的性質(<特集>複合材料)

概要

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Some mechanical properties of SiC particle reinforced 6061 aluminum matrix composites were investigated. The composites were fabricated by a powder metallurgical method. Cold pressed green bodies of uniformly mixed powder were consolidated by hot extrusion into 15 mmφ×1 m bars. Mechanical properties depend on SiC particle size and content. In the case of average SiC particle diameter of 7.2μm, the ultimate tensile strength (σ_B) of 45kgf/mm^2 was obtained at V_f=20%, and Young's modulus (E) reached 13000kgf/mm^2 at V_f=30%. High temperature tensile strength of composites (V_f=20%) is more than 30% higher than that of conventional 6061 Al alloy over the testing temperature range.
社団法人日本鉄鋼協会の論文
1989-09-01