Precipitation of chromium nitride nano-rods on lamellar carbides along austenite-ferrite boundaries in super duplex stainless steel

被引：26
作者：
Liang, X. Z. [1 ]
Dodge, M. F. [2 ]
Liang, W. [3 ]
Dong, H. B. [1 ]
机构：
[1] Univ Leicester, Dept Engn, Univ Rd, Leicester LE1 7RH, Leics, England
[2] TWI Ltd, Cambridge CB21 6AL, England
[3] Taiyuan Univ Technol, Sch Mat Sci & Engn, Taiyuan 030024, Peoples R China
来源：
SCRIPTA MATERIALIA | 2017年 / 127卷
基金：
英国工程与自然科学研究理事会;
关键词：
Stainless steel; Isothermal heat treatment; Phase boundary structure; Carbides; Nitrides; CORROSION BEHAVIOR; ORIENTATION RELATIONSHIP; M23C6; CARBIDE; SIGMA-PHASE; TEMPERATURE; EVOLUTION;
D O I：
10.1016/j.scriptamat.2016.09.004
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In super duplex stainless steel, austenite-ferrite boundaries are preferential sites for the precipitation of chromium nitride (Cr2N) during heat treatment. In this study, we observed a large number of Cr2N rods were continuously lined up on a thin lamella of M23C6 of 20 nm width along an austenite-ferrite boundary. This observation indicates that M23C6 carbides at the boundary play a significant role in promoting the formation of Cr2N rods. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：45 / 48
页数：4
相关论文
共 28 条
[1]  
Abtibol J., 2013, SCI TECHNOL WELD JOI, V14, P4
[2]   Effect of ageing on phase evolution and mechanical properties of a high tungsten super-duplex stainless steel [J].
Akisanya, Alfred R. ;
Obi, Udoka ;
Renton, Neill C. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 535 :281-289
[3]  
[Anonymous], 2006, STEEL
[4]   Effect of solution treatment temperature on the precipitation kinetic of σ-phase in 2205 duplex stainless steel welds [J].
Badji, R. ;
Bouabdallah, M. ;
Bacroix, B. ;
Kahloun, C. ;
Bettahar, K. ;
Kherrouba, N. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 496 (1-2) :447-454
[5]   Direct observation of hydrogen-enhanced plasticity in super duplex stainless steel by means of in situ electrochemical methods [J].
Barnoush, Afrooz ;
Zamanzade, Mohammad ;
Vehoff, Horst .
SCRIPTA MATERIALIA, 2010, 62 (05) :242-245
[6]   Effect of microstructure on corrosion behavior of superduplex stainless steel at critical environment conditions [J].
Bastos, Ivan N. ;
Tavares, Sergio S. M. ;
Dalard, Francis ;
Nogueira, Ricardo P. .
SCRIPTA MATERIALIA, 2007, 57 (10) :913-916
[7]   Study of corrosion behavior of a 22% Cr duplex stainless steel: Influence of nano-sized chromium nitrides and exposure temperature [J].
Bettini, Eleonora ;
Kivisakk, Ulf ;
Leygraf, Christofer ;
Pan, Jinshan .
ELECTROCHIMICA ACTA, 2013, 113 :280-289
[8]   Kinetics of Cr/Mo-rich precipitates formation for 25Cr-6.9Ni-3.8Mo-0.3N super duplex stainless steel [J].
Byun, Sang-Ho ;
Kang, Namhyun ;
Lee, Tae-Ho ;
Ahn, Sang-Kon ;
Lee, Hae Woo ;
Chang, Woong-Seong ;
Cho, Kyung-Mox .
METALS AND MATERIALS INTERNATIONAL, 2012, 18 (02) :201-207
[9]   Measuring Secondary Phases in Duplex Stainless Steels [J].
Calliari, I. ;
Brunelli, K. ;
Dabala, M. ;
Ramous, E. .
JOM, 2009, 61 (01) :80-83
[10]   Sympathetic nucleation of austenite in a Fe-22Cr-5Ni duplex stainless steel [J].
Chen, C. Y. ;
Yen, H. W. ;
Yang, J. R. .
SCRIPTA MATERIALIA, 2007, 56 (08) :673-676
123