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HomeKey Engineering MaterialsKey Engineering Materials Vol. 716Hot Deformation and Microstructural...

Hot Deformation and Microstructural Characteristics of Nitrogen Enhanced 316L Stainless Steel

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Abstract:

Dynamic recrystallization (DRX) in 316LN austenitic stainless steel with 0.14wt% nitrogen has been studied using hot isothermal compression tests carried out in temperature range 1073-1423K and strain rate range 0.001 - 10 s^-1. Critical strain and stress for DRX has been characterized using experimental data. Analysis of results shows that for the entire domain the critical stress is directly proportional to peak stress. However, no clear relationship between ε_c and ε_p prevails over the entire tested domain. Dynamic Recrystallized (DRX) grains are quantified by GOS and KAM maps. The four stages of DRX progression have been identified using the correlation between GOS and critical strain at different deformation conditions.

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Periodical:

Key Engineering Materials (Volume 716)

Pages:

317-322

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.716.317

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Online since:

October 2016

Authors:

Santosh Kumar*, B. Aashranth, Dipti Samantaray, Marimuthu Arvinth Davinci, Utpal Borah, A.K. Bhaduri

Keywords:

Austenitic Stainless Steel, Dynamic Recrystallization, Hot Deformation

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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