Formation of precipitates in multiple microalloyed pipeline steels
Authors: Emenike, C. O. I.; Billington, J. C.
Source: Materials Science and Technology, Volume 5, Number 6, June 1989 , pp. 566-574(9)
Publisher: Maney Publishing
Abstract:An investigation has been carried out to identify the precipitates in multiple microalloyed steels. The microalloying elements and interstitials included aluminium, niobium, titanium, vanadium, carbon, and nitrogen. It was found that the precipitates are complex in nature and they were rationalised on the basis of mutual solubility probably enhanced by non-stoichiometry. The precipitate morphologies were interpreted mainly in terms of steel compositions. Steels quenched from 1250°C contained titanium rich precipitates accompanied by the evolution of new niobium rich precipitates after hot rolling and quenching. A parameter K1 indicative of solute participation in the precipitation phenomenon was established and showed excellent correlation between steel and precipitate analyses. A sequence of precipitation in multiple microalloyed steels was achieved using solubility relationships as a premise.
Document Type: Research Article
Publication date: 1989-06-01
Authors wishing to cite fast track papers should give the journal name and the article DOI. This will enable reference linking via CrossRef and allow forward and backward citation tracking systems to associate the fast track citation with the final journal reference.Materials Science and Technology is the successor of two previous titles, for which digitised archives are available: Metal Science (Vols. 1—17; 1967—84) and Metals Technology (Vols. 1—11; 1974—84).
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