317 SPS法によって作製したAl基合金の機械的性質(新技術開発レポート)

Abstract

P/M Al_<92>Fe_3Cr_2Ti_2Mm_1 alloy prepared by the powder metallurgy (P/M) process have high tensile strength exceeding 600 MPa, high-elevated temperature strength exceeding 300 MPa after holding for 100 hr at 573 K. In this work, structural and mechanical properties of the SPS Al_<93>-xFe_3Cr_2Ti_2Mmx (X=0.5, 1.0) alloys prepared by the spark plasma system (SPS) were studied. The results were as follows: compressive fracture strength of 750 MPa, plastic elongation of 4.0%, Vikers hardness of 195 at room temperature and 110 at 573 K.