Effect of microstructure on static and dynamic mechanical property of a dual phase steel studied by shear punch testing
作者： Jinbo QU , Wael DABBOUSSI , Farid HASSANI , James NEMES , Steve YUE
DOI: 10.2355/ISIJINTERNATIONAL.45.1741
关键词:
摘要: The high-speed deformation behavior of a dual phase steel was studied by means dynamic Hopkinson bar shear punch testing, with an emphasis on the influence microstructure. Dual microstructures different fractions martensite were obtained changing heat treatment parameters during intercritical annealing. effects low temperature tempering (170°C, 235°C, and 300°C) bake hardening (5% pre-strain followed holding at 170°C for 20min) also investigated two selected containing 22% 61% martensite, respectively. Quasi-static property measured MTS hydraulic machine compared results. Additionally, quasi-static tensile tests some specimens conducted validating data.
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