Document Type

Article

Publication Date

11-2004

Journal or Book Title

Metallurgical and Materials Transactions A

Volume

35

Issue

11

First Page

3377

Last Page

3386

DOI

10.1007/s11661-004-0174-9

Abstract

Work was undertaken to establish reliable time-temperature-transformation (TTT) diagrams for the cast duplex stainless steels CD3MN and CD3MWCuN. The latter contains higher Cr, Ni, and Mo contents compared to the former. The TTT diagrams for sigma-phase formation in both alloys were developed based on quantitative metallography results from optical and scanning electron microscopy. The kinetics of sigma-phase were found to be much faster in CD3MWCuN alloys than in CD3MN. An Avrami analysis was employed to assess transformation characteristics and to refine the TTT diagram determination. Theoretical prediction of phase equilibria using the thermodynamic software package ThermoCalc was compared to the amount of sigma phase observed experimentally from long-term heat treatments. The constructed TTT diagrams of the cast alloys were compared to wrought counterpart alloys.

Comments

This article is from Metallurgical and Materials Transactions A 35 (2004): 3377-3386, doi: 10.1007/s11661-004-0174-9. Posted with permission.

Rights

Copyright 2004 ASM International. This paper was published in Metallurgical and Materials Transactions A, Vol. 35, Issue 11, pp. 3377-3386 and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.

Copyright Owner

ASM International

Language

en

File Format

application/pdf

Included in

Metallurgy Commons

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