Austenitic stainless steels are prone to coarse and mixed grain size after hot working by forging or rolling untill forging start and finish temperature and final pass strain rate are optimized.
Dr. Shivraj Singh Kasana
When I worked as a metallurgist at a cold rolling mill, we used 30% minimum reduction on stainless steel alloys before running the coils through the anneal and pickle line.
Sir,
The required strain rate varies with temperature, since both are linked. We have mapped these for austenitic stainless steels across a fairly wide domain, and also tried to give a numerical measure ('Flow Softening Index (FSI)') that you can use to estimate whether full recrystallization is likely. Please see the attached paper for the details.
https://www.researchgate.net/publication/318107910_Flow_Softening_Index_for_Assessment_of_Dynamic_Recrystallization_in_an_Austenitic_Stainless_Steel
In our experience, the results are quite similar for many austenitic steels.
- Badges
- Science topic
- Similar topics
- Filing