An investigation of microstructural evolution in 304L austenitic stainless steel warm deformed by cyclic channel die compression

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• 作者：S.S. Satheesh Kumar^a ; ^{sssatheesh12@rediffmail.com} ; ^{ssatheesh@dmrl.drdo.in} ; M. Vasanth^b ; Vajinder Singh^c ; P. Ghosal^c ; T. Raghu^a
• 关键词：304L Austenitic stainless steel ; Cyclic channel die compression ; Ultrafine grains ; Continuous dynamic recrystallization ; Hall-Petch equation
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：30 March 2017
• 年：2017
• 卷：699
• 期：Complete
• 页码：1036-1048
• 全文大小：7103 K
• 卷排序：699

文摘

304L stainless steel cyclic channel die compressed for the first time at 500 °C. Heterogeneously spaced deformation bands seen suggesting deformation inhomogeneity. Substantial grain refinement from EBSD studies divulging ultrafine grains (∼0.27 μm). Continuous dynamic recrystallization prevalent evidenced by subgrains, microbands. Boundary characteristics confirmed CDRX aided grain refinement; hardness enhanced.