Effects of the austenite grain size on transformation plasticity in a 35 NCD 16 steel
by Achraf Boudiaf, Lakhdar Taleb, Mohamed El Amine Belouchrani
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 5, No. 4/5, 2010

Abstract: In this work, the influence of the austenitic grain size (AGS) on the transformation induced plasticity (TRIP) was experimentally studied. The study was undertaken in the case of the martensitic transformation of a 35NCD16 steel. Transformation induced plasticity tests (TRIP tests) were carried out under various conditions of austenitisation leading to different grain sizes of austenite. Two studies have been performed leading to different observations. In the first study, where the heating rate during austenitisation was relatively fast (50°C/s), the results seem indicate that the transformation induced plasticity is higher when the austenitic grain size is smaller (Boudiaf et al., 2008). In the second study we have considered a slower heating rate during austenitisation (0.5°C/s) on specimens manufactured from another batch of the same steel. Different results were then obtained where TRIP increases slightly with the grain size. However, the uncertainties pointed out in assessing TRIP incite to be more careful. The work is still in progress in order to clarify the observed difference evaluating in particular the role of the heating rate during the austenitic transformation.

Online publication date: Mon, 20-Dec-2010

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Microstructure and Materials Properties (IJMMP):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com