高钼奥氏体不锈钢高温流变应力模型及热变形行为

Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296) Pub Date : 1999-07-10 DOI:10.1109/IPMM.1999.791490

Xu Yourong, Chen Liangshen, J. Lei, Wang Deying

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引用次数: 0

摘要

在thermecmaster - z物理模拟热轧模拟机上，对00Cr20Ni18Mo6Cu[N]奥氏体不锈钢在1223 ~ 1373 K高温和不同应变速率下进行了单级和双级间断热压缩试验。研究了钢的动、静态力学行为和组织演变。计算了动态、静态和元动态再结晶的变形激活能。建立了一系列考虑动态再结晶的流变应力模型。预测结果与实验数据吻合较好。还确定了元动力学和静态再结晶的动力学模型。

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High temperature flow stress model and hot deformation behaviors of high Mo austenitic stainless steel

Single stage and double stage interrupted hot compression tests on the Thermecmastor-Z simulator for physical simulating hot rolling have been carried out for a 00Cr20Ni18Mo6Cu[N] austenitic stainless steel under the high temperature range from 1223 to 1373 K and various strain rates. The dynamic and static mechanical behavior and microstructure evolution of the steel were studied. The deformation activation energies of dynamic, static and metadynamic recrystallization were calculated. A serials of perfect flow stress models considering dynamic recrystallization were established. The predicted results agree well with the experiment data. Kinetic modeling of metadynamic and static recrystallization has also been determined.

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Proceedings of the Second International Conference on Intelligent Processing and Manufacturing of Materials. IPMM'99 (Cat. No.99EX296)

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