Effect of solution treatment temperature on the precipitation kinetic of σ-phase in 2205 duplex stainless steel welds

被引：120
作者：
Badji, R. [1 ,3 ]
Bouabdallah, M. [2 ]
Bacroix, B. [1 ]
Kahloun, C. [1 ]
Bettahar, K. [3 ]
Kherrouba, N. [2 ]
机构：
[1] Univ Paris 13, LPMTM CNRS, UPR 9001, F-93430 Villetaneuse, France
[2] ENP, El Harrah Alger 16200, Algeria
[3] Welding & NDT Res Ctr, Algiers, Algeria
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 496卷 / 1-2期
关键词：
Duplex stainless steel; Welding; Ageing; Precipitation kinetic; Johnson-Mehi-Avrami model;
D O I：
10.1016/j.msea.2008.06.024
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of the prior solution treatment temperature on the delta-ferrite transformation in 2205 duplex stainless welds after aging at 850 degrees C has been studied. Microstructural examination showed that the sigma-phase and M23C6 chromium carbides precipitate at the delta/gamma interfaces and within the delta-ferrite grains. Increasing the solution treatment temperature from 1050 to 1250 degrees C delays the sigma-phase formation and favours the precipitation of intragranular secondary austenite gamma(2). The simulation of the sigma-phase precipitation kinetic in the base metal, HAZ and weld metal, indicates a good agreement between the experimental fitted data and the modified Johnson-Mehl-Avrami model. The results indicate a marked sensitivity of the sigma-phase precipitation kinetic to the solution treatment temperature. A high precipitation rate corresponds to a fine grained structure with ferrite enriched in sigma forming elements (Cr, Mo). (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：447 / 454
页数：8
相关论文
共 24 条
  • [1] THE KINETICS OF SIGMA-PHASE PRECIPITATION IN AISI-310 AND AISI-316 STEELS
    BARCIK, J
    [J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (04): : 635 - 641
  • [2] The effect of high-temperature exposure on the microstructural stability and toughness property in a 2205 duplex stainless steel
    Chen, TH
    Weng, KL
    Yang, JR
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 338 (1-2): : 259 - 270
  • [3] Effects of solution treatment and continuous cooling on σ-phase precipitation in a 2205 duplex stainless steel
    Chen, TH
    Yang, JR
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 311 (1-2): : 28 - 41
  • [4] Simulation of the precipitation of sigma phase in duplex stainless steels
    Cortie, MB
    Jackson, EMLEM
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1997, 28 (12): : 2477 - 2484
  • [5] INFLUENCE OF CARBON ON THE TRANSFORMATION KINETICS OF DELTA-FERRITE IN TYPE-316 STAINLESS-STEEL WELD METALS
    GILL, TPS
    SHANKAR, V
    VIJAYALAKSHMI, M
    RODRIGUEZ, P
    [J]. SCRIPTA METALLURGICA ET MATERIALIA, 1992, 27 (03): : 313 - 318
  • [6] EFFECT OF COMPOSITION ON THE TRANSFORMATION OF DELTA-FERRITE TO SIGMA IN TYPE-316 STAINLESS-STEEL WELD METALS
    GILL, TPS
    SHANKAR, V
    PUJAR, MG
    RODRIGUEZ, P
    [J]. SCRIPTA METALLURGICA ET MATERIALIA, 1995, 32 (10): : 1595 - 1600
  • [7] Decomposition of ferrite in commercial superduplex stainless steel weld metals; microstructural transformations above 700 °C
    Gregori, A
    Nilsson, JO
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (04): : 1009 - 1018
  • [8] Effect of solution treatment on the transformation behaviour of cold-rolled duplex stainless steels
    Lai, JKL
    Wong, KW
    Li, DJ
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 203 (1-2): : 356 - 364
  • [9] A TRANSFORMATION KINETIC-MODEL AND ITS APPLICATION TO CU-ZN-AL SHAPE MEMORY ALLOYS .1. ISOTHERMAL CONDITIONS
    LEE, ES
    KIM, YG
    [J]. ACTA METALLURGICA ET MATERIALIA, 1990, 38 (09): : 1669 - 1676
  • [10] Effect of isothermal treatment of SAF 2205 duplex stainless steel on migration of δ/γ interface boundary and growth of austenite
    Lee, KM
    Cho, HS
    Choi, DC
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 285 (1-2) : 156 - 161
123