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

Journal of Materials Research and Technology

Sung-Joon Kim¹  Seok-Jun Park¹  Kyung-Shik Kim¹  Jee-Hyun Kang² 

[1] Graduate Institute of Ferrous and Energy Materials Technology, POSTECH, Pohang 37673, Republic of Korea;School of Materials Science and Engineering, Institute of Materials Technology, Yeungnam University, Gyeongsan 38541, Republic of Korea;

关键词: Hall–Petch relationship;    Austenitic steel;    Carbon;    Nitrogen;   

DOI  :  

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown