Paper Title:
Phase Transformation in Duplex Stainless Steels after Isothermal Treatments, Continuous Cooling and Cold Working
  Abstract

This paper concerns the phase transformation induced by heat treatment and cold rolling in four duplex stainless steel. In 2205 and 2507 , during the isothermal heat treatments, chi-phase precipitates as small particles at the ferrite/austenite boundaries, followed by sigma precipitation. At the lowest temperature the formation kinetic of chi-phase is favoured, with the increasing of time and temperature a progressive transformation of chi to sigma occurs and the kinetic of sigma is favoured. During continuous cooling, the chi -phase appears at low cooling rates. In low Ni grades the grain boundaries precipitation of chromium nitrides were detected , but no sigma and chi. In 2101 the austenite transforms to martensite both after cold rolling and quenching

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
2986-2991
DOI
10.4028/www.scientific.net/MSF.638-642.2986
Citation
I. Calliari, E. Ramous, P. Bassani, "Phase Transformation in Duplex Stainless Steels after Isothermal Treatments, Continuous Cooling and Cold Working", Materials Science Forum, Vols. 638-642, pp. 2986-2991, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Kook Lee, Jin-Myung Hong, Chong Sool Choi, Jae Kon Lee
Abstract:Effects of niobium content and cooling rate on ferrite and bainite start temperatures (Ar3, Bs) and microstructural features have been...
65
Authors: Andrej Samoilov, Yuri Titovets, Nikolay Y. Zolotorevsky, Gottfried Hribernig, Andreas Pichler
Abstract:An experimental study of Fe-C-Mn-Cr low-carbon steels with varying Cr content is presented. Pronounced bay and a near-stasis behavior were...
311
Authors: Xin Jie Di, Dan Xu, Yong Chang Liu
Chapter 3: Materials Forming, Machining and Joining
Abstract:The microstructure and carbide precipitate of simulated coarse grain heat affected zone(CGHAZ) in modified high Cr ferritic heat-resistant...
1320
Authors: Angelo Fernando Padilha, D.J.M. Aguiar, R.L. Plaut
Abstract:During processing or use, duplex stainless steels are subject to a great number of significant phase transformations, such as solidification,...
163
Authors: Jin Ming Liu, Jie Liu, Guang Wei Fan, Dong Fang Du, Guo Ping Li, Cheng Jun Chai
A. Environment Related Materials and Photocatalysts
Abstract:Effect of solution treated temperature at 5001100°C on ferrite/austenite ratio and σ phase precipitation has been studied in this paper, and...
3