Some interesting microstructures in very low carbon high manganese microalloyed steels
Journal Article
·
· Scripta Metallurgica et Materialia; (United States)
- Univ. of Regina, Saskatchewan (Canada). Industrial Systems Engineering
- United States Naval Postgraduate School, Monterey, CA (United States). Dept. of Mechanical Engineering
As part of an ongoing investigation into alternative compositions to the traditional controlled rolled HSLA or microalloyed steels, a series of very low carbon, high manganese, microalloyed steels were produced by Bhole and Yu that, after controlled rolling and normalizing, exhibited good strength-toughness properties comparable to the commercially available HSLA steels. Manganese is a strong austenite stabilizer and solid solution strengthener in Fe-C alloys and thus is potentially a cost saving substitute for nickel, particularly where high hardenability need not be important such as in the ultra low carbon type steels. In the present work some interesting microstructural observations in relaxed controlled rolled 2.0% Mn - 0.25% Mo - 0.016% C (by weight) steels containing microalloying additions of niobium and vanadium will be reported. The effect of a final roll pass in the intercritical temperature range followed by normalizing on the microstructures will then be explained in terms of the VC and Nb(CN) solubility products.
- OSTI ID:
- 5875638
- Journal Information:
- Scripta Metallurgica et Materialia; (United States), Journal Name: Scripta Metallurgica et Materialia; (United States) Vol. 29:11; ISSN SCRMEX; ISSN 0956-716X
- Country of Publication:
- United States
- Language:
- English
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