论文部分内容阅读
利用Ｇｌｅｅｂｌｅ－１５００热模拟试验机，研究了９Ｃｒ－１Ｍｏ－Ｖ－Ｎｂ－Ｎ铁素体耐热钢在８５０℃～１２５０℃，接近实际生产变形速率时的高温塑性，做出塑性图和再结晶图。并通过分析真应力—真应变曲线，用Ｍａｒｑｕａｒｄｔ法回归出试验Ｔ９１钢的变形抗力数学模型
The hot plasticity of 9Cr-1Mo-V-Nb-N ferritic heat-resisting steel at 850 ℃ ~ 1250 ℃, close to the actual production deformation rate was studied by using Gleeble-1500 thermal simulation tester. The plasticity and recrystallization Figure Through the analysis of true stress-true strain curve, Marquardt method is used to regress the mathematical model of deformation resistance of T91 steel