Abstract
In general, the medium Mn steel with a dual phase microstructure of austenite and ferrite has a yield point phenomenon. It is still not clear which phase firstly initiates the plasticity and therefore governs the yield point phenomenon. In this paper, the mechanical behaviours of ferrite and austenite phases are investigated by nanoindentation. It is found that the large ferrite grains in which dislocations are present have a lower resistance to dislocation plasticity as compared to the austenite phase and the small ferrite grains, suggesting that the large ferrite grains shall be responsible for the initiation of yield point phenomenon.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
