Microstructural and magnetic studies on thermomechanically treated hsla steel

Narayan, S P and Rao, Venkatesh and Das, S and Mohanty, O N (1990) Microstructural and magnetic studies on thermomechanically treated hsla steel. Journal of Magnetism and Magnetic Materials, 88 (1-2). pp. 71-78.

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Thermomechanical treatment of commercial grade HSLA steel microalloyed with Nb, V and Ti has been carried out in order to obtain microstructures with spherodised carbides evenly distributed thourghout the matrix and therefore with good magnetic properties at high strength levels. Alloys were tempered after rolling-quenching, as well as forging-quenching. In both cases, rolled as well as forged, good magnetic properties were obtained at a strength of 600-620 MPa after spheroidisation of carbides. Thus, for a given level of carbon, the spheroidised carbides lead to a lower coercive force compared to the case in which they are lamellar. This is believed to be associated with lower locked-up microstresses in the former situation.

Item Type:Article
Official URL/DOI:http://eprint.nmlindia.org/
Uncontrolled Keywords:Thermomechanically treated hsla steel; spheroidised; rolling-quenching
Divisions:Material Science and Technology
ID Code:887
Deposited By:Sahu A K
Deposited On:08 Jun 2010 10:24
Last Modified:14 Feb 2013 15:15
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