Paper Title:
Secondary Carbide Precipitation in Low Silicon Hot Work Tool Steels
  Abstract

A reduction from 1.0 to 0.3%Si has recently been shown to improve mechanical properties of H11-type hot work tool steels. The present paper shows that an important improvement in toughness can be explained by the effect of Si content on the precipitation sequence of secondary carbides during tempering after quenching. Carbide particle distributions were observed and identified by electron microscopy, allowing to relate the effect of Si on mechanical properties directly to its effect on cementite and subsequent alloy carbide formation during high temperature tempering.

  Info
Periodical
Materials Science Forum (Volumes 636-637)
Edited by
Luís Guerra ROSA and Fernanda MARGARIDO
Pages
612-617
DOI
10.4028/www.scientific.net/MSF.636-637.612
Citation
R. A. Mesquita, C. A. Barbosa, E. V. Morales, H.J. Kestenbach, "Secondary Carbide Precipitation in Low Silicon Hot Work Tool Steels ", Materials Science Forum, Vols. 636-637, pp. 612-617, 2010
Online since
January 2010
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$32.00
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