Abstract
Controlled rolling is a means whereby the properties of steel can be improved to a level equivalent to those of more highly alloyed or heat-treated steels. The processing conditions are controlled to refine the austenite structure and thereby give fine ferrite grains. Refinement of the structure is aided by the addition of micro-alloying elements such as Nb, V or Ti. The improved strength and toughness of controlled rolled steels are shown to be a result of the fine grain size. A further increase in strength beyond that due to grain refinement can be obtained by finishing rolling at low temperatures in the y + oc or cc regions. Commercial controlled rolling in various mill layouts, together with some properties obtained are described and it is pointed out that optimization of productivity is a major consideration when controlled-rollmg procedures are being planned.
Footnotes
This text was harvested from a scanned image of the original document using optical character recognition (OCR) software. As such, it may contain errors. Please contact the Royal Society if you find an error you would like to see corrected. Mathematical notations produced through Infty OCR.
- Received December 4, 1975.
- Scanned images copyright © 2017, Royal Society
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