牛靖,刘迎来,齐丽华,吉玲康,冯耀荣,张建勋

• 1:中国石油天然气集团公司管材研究所
• 2:西安交通大学材料学院

摘要(Abstract)：

研究了X80钢在不同奥氏体化温度下调质处理后的力学性能和组织变化。结果表明,奥氏体化温度为1150℃时,X80钢的奥氏体晶粒严重粗化,导致粗板条贝氏体铁素体的产生,致使X80钢的强度升高和韧性严重降低;通过奥氏体化温度为850℃、950℃的淬火处理,同时辅以650℃的回火处理,可以使X80钢获得以细小针状铁素体为主的组织,从而获得良好的强韧性配合。

关键词(KeyWords)： X80钢;针状铁素体;奥氏体化温度;力学性能

Abstract:

Keywords:

基金项目(Foundation): 中国石油天然气集团公司重大科技专项(6990-HT-XEX-03-(2008)-0137)

作者(Author): 牛靖,刘迎来,齐丽华,吉玲康,冯耀荣,张建勋

DOI: 10.13289/j.issn.1009-6264.2010.05.025

参考文献(References)：

• [1]KONG Jun-hua,ZHEN Lin,GUO Bin,et al.Influence of Mo content on microstructure and mechanical properties of high strength pipeline steel[J].Materials and Design,2004,25(8):723-728.
• [2]Jun H J,Kang J S,Seo D H,et al.Effects of deformation and boron on microstructure and continuous cooling transformation in low carbon HSLAsteels[J].Materials Science and Engineering A,2006,422(1-2):157-162.
• [3]Rodrigues P C M,Pereloma E V,Stantos D B.Mechanical preperities of an HSLA bainitic steel subjected to controlled rolling with acceleratedcooling[J].Materials Science and Engineering A,2000,283(1-2):136-143.
• [4]张小立,冯强,刘迎来,等.二次加热对高钢级管线钢韧性及其组织的影响[J].材料热处理学报,2008,29(6):66-69.ZHANG Xiao-li,FENG Qiang,LIU Ying-lai,et al.Effect of reheating on toughness index and microstructure of high grade pipeline steels[J].Transactions of Materials and Heat Treatment,2008,29(6):66-69.
• [5]乔桂英,王旭,付彦宏,等.加热温度和冷却速度对X80级弯管用钢组织与性能的影响[J].焊管,2008(6):15-18,98.QIAO Gui-ying,WANG Xu,FU Yan-hong,et al.Effects of heat temperature and cooling rate on microstructure and mechanical properties of X80steel[J].Welded Pipe and Tube,2008(6):15-18,98.
• [6]Zhao Y T,Shang C J,Yang S W,et al.The metastable austenite transformation in Mo-Nb-Cu-B low carbon steel[J].Materials Science andEngineering A,2006,433(1-2):169-174.
• [7]Smith Y E,Coldren A P,Cryderman R.Toward Improved Ductility and Toughness[M].Tokyo:Climax Molybdenum Company Ltd,1972:119-120.
• [8]冯耀荣,高惠临,霍春勇,等.管线钢显微组织的分析及鉴别[M].西安:陕西科学技术出版社,2008.
• [9]Diaz-Fuentes M,Iza-Mendia A,Gu Tierrez I.Analysis of different acicular ferrite microstructures in low-carbon steels by electron backscattereddiffraction[J].Metallurgical and Materials Transactions A,2003,34(11):2505-2516.
• [10]张小立,冯耀荣,庄传晶,等.高钢级管线钢中有效晶粒尺寸及与CVN关系研究[J].材料工程,2008(7):1-5.ZHANG Xiao-li,FENG Yao-rong,ZHUANG Chuan-jing,et al.Study on effective particle size of high grade pipeline steels and relationship betweenCVN[J].Materials Engineering,2008(7):1-5.
• [11]DeArdo A J.Multi-phase microstructures and their proper-ties in high strength low carbon steels[J].ISIJ International,1995,35(8):946-954.
• [12]尚成嘉,杨善武,王学敏,等.低碳贝氏体钢的组织类型及其对性能的影响[J].钢铁,2005,40(4):57-61.SHANG Cheng-jia,YANG Shan-wu,WANG Xue-min,et al.Microstructure and mechanical properties of low carbon bainitic steel[J].Iron and Steel,2005,40(4):57-61.
• [13]张志波,刘清友,张晓兵,等.加热温度对管线钢奥氏体晶粒尺寸和铌固熔的影响[J].钢铁研究学报,2008,20(10):36-39.ZHANG Zhi-bo,LIU Qing-you,ZHANG Xiao-bing,et al.Effect of heating temperature on prior austenite size and solution of Nb in pipeline steel[J].Journal of Iron and Steel Research,2008,20(10):36-39.
• [14]冯耀荣,李鹤林.管道钢及管道钢管的研究进展与发展方向(上)[J].石油规划设计,2005,16(5):1-7.FENG Yao-rong,LI He-lin.Progress and future prospect of research on steels used for pipelines and tubes[J].Petroleum Planning&Engineering,2005,16(5):1-7.
• [15]于少飞,钱百年.X70管线钢的局部脆化[J].材料研究学报,2004,18(4):405-411.YU Shao-fei,QIAN Bai-nian.Local brittleness of X70 pipeline steel[J].Chinese Journal of Material Research,2004,18(4):405-411.

文章评论(Comment)：