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In order to evaluate the elevated temperature creep performance of the ABOw/Al-12Si composite as a prospective piston crown material, the tensile creep behaviors and creep fracture mechanisms have been investigated in the temperatures range from 250 to 400 °C and the stress range from 50 to 230 MPa using a uniaxial tensile creep test. The creep experimental data can be explained by the creep constitutive equation with stress exponents of 4.03-6.02 and an apparent activation energy of 148.75 kJ/mol. The creep resistance of the ABOw/Al-12Si