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首页> 外文期刊>Journal of Materials Engineering and Performance >Prediction of Post-deformation Recrystallization Kinetics in AISI 321 Austenitic Stainless Steel Using Double-Stage Hot Compression
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Prediction of Post-deformation Recrystallization Kinetics in AISI 321 Austenitic Stainless Steel Using Double-Stage Hot Compression

机译：双级热压缩预测AISI 321奥氏体不锈钢后变形再结晶动力学

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In the present research, a series of double-stage hot compression tests were conducted in the temperature range of 950-1150 degrees C, strain rates in the range of 0.01-1s(-1), strain in the range of 0.1-0.3, and inter-pass time range of 3-100s to evaluate the kinetics of the post-deformation recrystallization in AISI 321 austenitic stainless steel. An Avrami-type kinetics equation has been determined based on the obtained experimental data. Results show that the extent of post-deformation recrystallization increases with increase in inter-pass time, deformation temperature, pre-strain, and strain rate. The calculated activation energy for recrystallization (174kJ/mol) is lower than the activation energy for static recrystallization of austenitic stainless steels. It is concluded that the both static and metadynamic recrystallization occurred during the inter-pass period. Also, the predicted softening fraction using the proposed kinetics equation agreed well with those obtained from experimental results.
机译：在本研究中，在950-1150℃的温度范围内进行一系列双级热压缩试验，其温度范围为0.01-1s（-1），菌株在0.1-0.3的范围内， 3-100秒的间际时间范围3-100，以评估AISI 321奥氏体不锈钢中变形后重结晶的动力学。基于所获得的实验数据确定Avrami型动力学方程。结果表明，变形后重结晶后的程度随着通过的间际时间，变形温度，菌株预态和应变率的增加而增加。用于再结晶的计算的激活能量（174kJ / mol）低于奥氏体不锈钢静态再结晶的活化能量。得出结论，静态和元动力学重结晶均在间际期间发生。而且，使用所提出的动力学方程预测的软化级分与从实验结果中获得的那些相同。

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