Effects of Soaking Time and Cold Work on Sensitisation of Austenitic Stainless Steels
No Thumbnail Available
Date
2015-10-20
Journal Title
Journal ISSN
Volume Title
Publisher
University of Novi Sad, Serbia
Abstract
The effects of soaking and coldworks on sensitisation of austenitic stainless steels were studied. Annealed
and samples coldworked to 20% and 40% were subjected to sensitisation heat treatment at 650
C for 24 and 72 hours. Metallographic analysis carried out showed that sensitisation occurred in both annealed and coldworked samples which manifested as ditches. Soaking for 72 hours showed more ditches than 24 hours. Intergranular ditches were more prevalent in annealed and lower coldworked samples. In contrast, heavily coldworked samples were more susceptible to transgranular carbide precipitation evident by ditches on slip bands and recrystallised grains.
Description
Keywords
sensitisation, soaking time, cold work, carbide, interganular
Citation
Ahmed, I. I., Adebisi, J. A., Yahaya, T., & Abdulkareem, S. (2015). Effects of Soaking Time and Cold Work on Sensitisation of Austenitic Stainless Steels. Journal of Production Engineering, 18 (2), 37-42.