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借助MMS-200热力模拟试验机,对SAE4137合金钢进行热模拟变形试验,研究了该钢种在不同变形条件下的变形抗力变化规律。同时建立了SAE4137合金钢的变形抗力数学模型,并利用实验数据进行验证。结果表明,在1150℃,变形速率为0.1 s-1时,变形抗力取最小值,为60 MPa;在900℃,变形速率为10 s-1时,变形抗力取最大值,为259MPa。所建立的数学模型具有较高精度,该研究为现场工艺的设定与调整提供了参考。
With MMS-200 thermal simulation test machine, the SAE4137 alloy steel was subjected to thermal deformation test, and the variation of deformation resistance of the steel under different deformation conditions was studied. At the same time, the deformation resistance mathematical model of SAE4137 alloy steel was established and verified by experimental data. The results show that the deformation resistance takes the minimum value of 60 MPa when the deformation rate is 0.1 s-1 at 1150 ℃, and the maximum value is 259 MPa when the deformation rate is 10 s-1 at 900 ℃. The established mathematical model has higher accuracy. This study provides a reference for the setting and adjustment of on-site technology.