Volume 36, Issue 3 (Journal of Advanced Materials-Fall 2017)                   jame 2017, 36(3): 63-72 | Back to browse issues page

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Chavilian H, Farmanesh K, Soltanipour A, Maghsoudi E. Investigation of Hot Deformation Behavior of 321 Stainless Steel using Hot Compression Test and Modeling with Constitutive Equations. jame. 2017; 36 (3) :63-72
URL: http://jame.iut.ac.ir/article-1-677-en.html
Department of Material Engineering, Malek Ashtar University of Technology, Isfahan, Iran. , hooman.chavilian@gmail.com
Abstract:   (4564 Views)
In this research, industrial hot deformation processes was simulated for 321 austenitic stainless steel using hot compression test with the aim of acquiring technical knowledge and indigenization of stainless steel production. The obtained stress-strain curves showed the common retrieval dynamic behaviour. By microscopic studies, the main restoration mechanism during hot deformation in this steel was diagnosed as dynamic recrystallization, that due to low stacking fault energy of 321 stainless steel, this phenomenon was justified. Then, using diagrams related to real stress, real strain and strain rate, the onset point of dynamic recrystallization was determined under different conditions. Also, using the constitutive equations and Zener-Holloman parameter, hot deformation behaviour of 321 stainless steel was studied and the activation energy of hot deformation for this steel was determined as 422 (Kj/mol).
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Type of Study: Research | Subject: Forming and mechanical properties
Received: 2015/09/6 | Accepted: 2017/05/28 | Published: 2017/11/14

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