The ZrO 2 (2Y)/TRIP steel composites were prepared by vacuum hot pressing sintering. The room temperature static tensile and dynamic yield strength were tested using the static tensile and Split Hopkinson Pressure Bar...The ZrO 2 (2Y)/TRIP steel composites were prepared by vacuum hot pressing sintering. The room temperature static tensile and dynamic yield strength were tested using the static tensile and Split Hopkinson Pressure Bar methods, respectively. The effects of load mode on the static and dynamic mechanical behaviors were studied. The results show that the static tensile strengths of the composites decrease with the increase of ZrO 2 content, for the weak bonding of ZrO 2/ZrO 2. Under the dynamic load, the matrix TRIP steel produces the martinsitic phase transformation, which improves the dynamic strength and deformation ability of the composites. When the volume fraction of ZrO 2 exceeds 20%, the strain hardening coefficient and the dynamic deformation ability of the composites decrease.展开更多
文摘The ZrO 2 (2Y)/TRIP steel composites were prepared by vacuum hot pressing sintering. The room temperature static tensile and dynamic yield strength were tested using the static tensile and Split Hopkinson Pressure Bar methods, respectively. The effects of load mode on the static and dynamic mechanical behaviors were studied. The results show that the static tensile strengths of the composites decrease with the increase of ZrO 2 content, for the weak bonding of ZrO 2/ZrO 2. Under the dynamic load, the matrix TRIP steel produces the martinsitic phase transformation, which improves the dynamic strength and deformation ability of the composites. When the volume fraction of ZrO 2 exceeds 20%, the strain hardening coefficient and the dynamic deformation ability of the composites decrease.
