T91铁素体耐热钢析出相的优化控制

张芮辉; 张弛; 夏志新; 杨志刚

doi:10.3724/SP.J.1037.2013.00178

金属学报 >

2013 , Vol. 49 >Issue 9: 1075 - 1080

DOI: https://doi.org/10.3724/SP.J.1037.2013.00178

论文

T91铁素体耐热钢析出相的优化控制

张芮辉 ,
张弛 ,
夏志新 ,
杨志刚

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1) 清华大学材料学院先进材料教育部重点实验室, 北京100084
2) 苏州热工研究院, 苏州 215004

张芮辉, 男, 1988年生, 硕士生

收稿日期: 2013-04-09

修回日期: 2013-06-10

网络出版日期: 2013-09-11

基金资助

国家重点基础研究发展计划项目2011GB108006和国家自然科学基金项目51071090资助

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OPTIMIZING CONTROL OF PRECIPITATES IN T91 FERRITIC HEAT－RESISTAN STEEL

ZHANG Ruihui ,
ZHANG Chi ,
XIA Zhixin ,
YANG Zhigang

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1) Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering,Tsinghua University, Beijing 100084
2) Suzhou Nuclear Power Research Institute, Suzhou 215004

Received date: 2013-04-09

Revised date: 2013-06-10

Online published: 2013-09-11

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摘要

基于T91钢传统的“正火+回火''热处理制度, 在Thermal－Calc软件热力学计算的辅助下,通过在正火与回火热处理间引入850℃等温处理, 设计了2种新的热处理制度.研究了3种不同热处理制度下T91钢中析出相的尺寸及分布规律.与传统``正火+回火''处理制度相比, 新设计的热处理制度使得钢中M₂₃C₆碳化物的尺寸由350 nm降至250 nm左右,并使MX碳氮化物的数密度有所增加. 通过Thermal－Calc模拟计算,M₂₃C₆碳化物析出相变的驱动力随着C含量的降低而增加.利用经典晶界形核理论并结合Thermal－Calc计算结果,定量描述了M₂₃C₆碳化物形核率与C含量的关系,较好地解释了M₂₃C₆碳化物的细化原因.

关键词： T91钢; 析出相; M₂₃C₆; 形核率

本文引用格式

张芮辉 , 张弛 , 夏志新 , 杨志刚 . T91铁素体耐热钢析出相的优化控制[J]. 金属学报, 2013 , 49(9) : 1075 -1080 . DOI: 10.3724/SP.J.1037.2013.00178

Abstract

T91 steel is one representative of (9%－12%)Cr (mass fraction) ferritic heat－resistant steel, in which MX carbonitrides and M₂₃C₆ carbides are two major strengthened precipitates for long－term creep under high temperature. This work attempted to control the precipitation of MX carbonitrides and M₂₃C₆ carbides by applying new heat treatment procedures. With the assist of Thermal－Calc software calculation, two new heat treatment procedures have been designed for T91 steel based on its traditional normalized－tempered treatment, in which an isothermal treatment at 850℃ was introduced between normalized treatment and tempered treatment. The mean size of M₂₃C₆ carbides decreased from 350 nm to 250 nm and the number density of MX carbonitrides increased due to the new heat treatment procedures. The calculated results of Thermal－Calc software showed that the nucleation rate of M₂₃C₆ carbides at 750℃ increased with the decrease of carbon content in the matrix, which might be the major reason why the mean size of M₂₃C₆ carbides decreased.

Key words： T91 steel; precipitate; M₂₃C₆; nucleation rate

参考文献

[1] Sklenicka V, Kucha rv a K, Svoboda M, Kloc L,Bursik J, Kroupa A. Mater Charact, 2003; 51: 35

[2] Ha V H, Jung W S. Mater Sci Eng, 2012; A558: 103

[3] Wang Y, Mayer K H, Scholz A, Berger C, Chilukuru H, Durst K, Blum W.Mater Sci Eng, 2009; A511: 180

[4] Prat O, Garcia J, Rojas D, Carrasco C, Kaysser－Pyzalla A R. Mater Sci Eng,2010; A527: 5976

[5] Knezevic V, Balun J, Sauthoff G, Inden G, Schneider A. Mater Sci Eng, 2008; A477: 334

[6] Tsuchida Y, Okamoto K, Tokunaga Y. ISIJ Int, 1995; 35: 309

[7] Klueh R L, Hashimoto N, Maziasz P J. J Nucl Mater, 2007; 367－370: 48

[8] Tamura M, Kumagai T, Sakai K, Shinozuka K, Esaka H. J Nucl Mater, 2011; 417: 29

[9] Abe F, Taneike M, Sawada K. Int J Pressure Vessels Piping, 2007; 84(1－2): 3

[10] Abe F, Horiuchi T, Taneike M, Sawada K. Mater Sci Eng, 2004; A378: 299

[11] Gutierrez N Z, Cicco H D, Marrero J, Danon C A, Luppo M I. Mater Sci Eng, 2011; A528: 4019

[12] Masuyama F. ISIJ Int, 2001; 41: 612

[13] Hollner S, Fournier B, Le Pendu J, Cozzika T, Tournie I,Brachet J C, Pineau A. J Nucl Mater, 2010; 405: 101

[14] Taneike M, Abe F, Sawada K. Nature, 2003; 424: 294

[15] Cipolla L, Danielsen H K, Venditti D, Nunzio P E D, Hald J, Somers M A J. Acta Mater, 2010; 58: 669

[16] Sawada K, Kushima H, Tabuchi M, Kimura K. Mater Sci Eng, 2011; A528: 5511

[17] Zhu F X, Liu C, Wang P, Gao D F, Gao C, Zhu C Q, Ni G Z. Steel Pipe, 1999; 28(1): 8

(朱伏先, 刘川, 王平, 高德福, 高潮, 祝春清, 倪国政. 钢管, 1999; 28(1): 8)

[18] Pan J S, Tong J M, Tian M B. Fundamentals of Materials Science. Beijing:Tsinghua University Press, 2009: 526

(潘金生, 仝健民, 田民波. 材料科学基础. 北京: 清华大学出版社, 2009: 526)

[19] Foley D C, Hartwig K T, Maloy S A, Hosemann P, Zhang X. J Nucl Mater, 2009; 389: 221

[20] Sivaprasad P V, Mannan S L, Prasad Y V R K. Mater Sci Technol, 2004; 20: 1545

[21] Tamura M, Sakasegawa H, Kohyama A, Esaka H, Shinozuka K. J Nucl Mater, 2003; 321: 288

[22] Yamada K, Igarashi M, Muneki S, Abe F. ISIJ Int, 2002; 42: 779

[23] Schneider A, Inden G. Acta Mater, 2005; 53: 519

[24] Tsukada Y, Shiraki A, Murata Y, Takaya S, Koyama T, Morinaga M. J Nucl Mater, 2010;401: 154

[25] Rojas D, Garcia J, Prat O, Carrasco C, Sauthoff G, Kaysser－Pyzalla A R.Mater Sci Eng, 2010; A527: 3864

[26] Yong Q L. The Second Phase in Iron and Steels. Beijing: Metallurgical Industry Press, 2006: 284

(雍岐龙. 钢铁材料中的第二相. 北京: 冶金工业出版社, 2006: 284)

[27] Prat O, Garcia J, Rojas D, Carrasco C, Inden G. Acta Mater, 2010; 58: 6142

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