Paper Title:
Dissolution of Precipitates in Hot Rolled Low Mn, Ti Added Pipeline Steels
  Abstract

The dissolution of different sulphides, carbides, carbo-sulphides and nitrides during re-heating of hot rolled low carbon, low manganese, titanium added steel have been studied using transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS) analysis. In addition, the chemical composition and size distribution of the different precipitates have been determined before and after reheating to analyze the modification of these precipitates in the course of the reheating cycle. The TEM and EDS analyses showed the presence of a wide variety of simple and/or complex precipitates in as rolled samples. The reheating of these samples to temperatures as high as 1350 °C, caused dissolution of most particles, although titanium nitride (TiN) did not dissolve even after reheating. By decreasing the reheating temperature more and more precipitates remained un-dissolved, but some spherodization occurred at higher temperatures.

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
3182-3187
DOI
10.4028/www.scientific.net/MSF.638-642.3182
Citation
A. Dehghan-Manshadi, R. Dippenaar, "Dissolution of Precipitates in Hot Rolled Low Mn, Ti Added Pipeline Steels", Materials Science Forum, Vols. 638-642, pp. 3182-3187, 2010
Online since
January 2010
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