Hot deformation characteristics and processing map of a phosphorous modified super austenitic stainless steel

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• 作者：K. Arun Babu^a ; S. Mandal^a ; ^{sumantra.mandal@metal.iitkgp.ernet.in} ; C.N. Athreya^b ; B. Shakthipriya^b ; V. Subramanya Sarma^b
• 关键词：Super austenitic stainless steel ; Hot deformation ; Processing map ; Microstructure ; Dynamic recrystallization
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：115
• 期：Complete
• 页码：262-275
• 全文大小：5808 K
• 卷排序：115

文摘

Super austenitic stainless steel was hot-deformed at 1173-1423 K and 0.001-10 s− 1 using a thermo-mechanical simulator Hot deformation parameters were modeled using Arrhenius equation and Zener–Hollomon parameter (Z) Peak, critical (for DRX), maximum flow softening and steady-state stresses vary linearly with ln(Z/A) Processing map was constructed and microstructures at different processing domains were characterized Optimum processing domain was identified as 1300-1350 K and 0.01-0.1 s− 1