Effects of carbon and nitrogen on Hall–Petch relationship in austenitic stainless steel

Hall–Petch relationship was investigated for austenitic stainless steels with either 0.3 wt% C or N. It was found that Hall–Petch slope was higher for the nitrogen-containing steel, which implied that higher stress was required to activate the dislocation source in adjacent grains. It was suggested...

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Bibliographic Details
Main Authors: Seok-Jun Park, Kyung-Shik Kim, Jee-Hyun Kang, Sung-Joon Kim
Format: Article
Language:English
Published: Elsevier 2022-07-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785422009139
Description
Summary:Hall–Petch relationship was investigated for austenitic stainless steels with either 0.3 wt% C or N. It was found that Hall–Petch slope was higher for the nitrogen-containing steel, which implied that higher stress was required to activate the dislocation source in adjacent grains. It was suggested that the nitrogen in the steel generated slip planarity which hindered the cross-slip at the grain boundaries and delayed the activation of the dislocation source.
ISSN:2238-7854