Development of high strength interstitial free steel by copper precipitation hardening

A novel route of strengthening mild interstitial free steels has been suggested in the current investigation based on copper precipitation hardening. A possible scheme of application of this new high strength automotive steel has also been outlined. It has been shown that with the addition of 1.18 w...

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Bibliographic Details
Published in:Materials letters 2007-06, Vol.61 (14), p.2919-2922
Main Authors: Rana, R., Bleck, W., Singh, S.B., Mohanty, O.N.
Format: Article
Language:English
Subjects:
Copper precipitation
Interstitial free steel
Strengthening
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Summary:A novel route of strengthening mild interstitial free steels has been suggested in the current investigation based on copper precipitation hardening. A possible scheme of application of this new high strength automotive steel has also been outlined. It has been shown that with the addition of 1.18 wt.% copper, a yield strength of ∼ 456 MPa and tensile strength of ∼ 566 MPa can be achieved through a post annealing ageing treatment. The present copper-containing interstitial free steel is far stronger than the existing high strength interstitial free steels.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2006.10.037