904L钢高温下固溶-析出行为及析出相规律
|
摘要
为了研究904L钢高温下固溶析出行为及其析出相演变规律,采用热处理试验炉,对中试试验生产的904L钢热轧板进行了不同温度、不同时间下的固溶处理;对固溶处理后的试样在900℃下分别进行不同时间的时效处理。结果表明,经固溶处理后904L钢晶界处的高温析出相已基本溶解固溶于基体中,组织为单一的奥氏体组织,未出现明显第二相组织,但由于固溶不充分、钼元素存在条带状偏析,且出现少量孪晶,随着固溶温度升高和固溶时间的延长,晶粒尺寸逐渐增加,1 135℃、600s固溶处理后组织和性能较好;固溶处理后的试样在900℃高温下经不同时间时效处理后,基体中均析出σ相,随着时效时间延长,基体中σ析出相逐渐增多,尺寸也逐渐增大,并且有粗化趋势。
In order to study the solid solution precipitation behavior and the precipitates evolution of 904L steel at high temperature,the hot rolled 904L steel sheets produced in pilot plant for solution treatment at different temperatures and times in a heat treatment furnace were studied.The aging treatment of the samples treated by solution treatment was carried out.The results showed that the high temperature precipitates dissolved in the matrix after solution treatment.The microstructure was single austenite and the second phase structure did not appear.However,the microstructure had the segregation strip of Mo element due to insufficient solution and the microstructure also had a small amount of twin crystal.With the solution temperature and solution time increasing,the grain size grew.The samples had good microstructure and properties after solution treatment at 1 135℃ for 600 s.There were someσphase precipitates after solution treatment at 900℃ for different time in the matrix.With the aging time increasing,the quantities and sizes ofσphase in the matrix increased gradually,and theσphase had coarsening trend.
In order to study the solid solution precipitation behavior and the precipitates evolution of 904L steel at high temperature,the hot rolled 904L steel sheets produced in pilot plant for solution treatment at different temperatures and times in a heat treatment furnace were studied.The aging treatment of the samples treated by solution treatment was carried out.The results showed that the high temperature precipitates dissolved in the matrix after solution treatment.The microstructure was single austenite and the second phase structure did not appear.However,the microstructure had the segregation strip of Mo element due to insufficient solution and the microstructure also had a small amount of twin crystal.With the solution temperature and solution time increasing,the grain size grew.The samples had good microstructure and properties after solution treatment at 1 135℃ for 600 s.There were someσphase precipitates after solution treatment at 900℃ for different time in the matrix.With the aging time increasing,the quantities and sizes ofσphase in the matrix increased gradually,and theσphase had coarsening trend.
引文
[1]高建兵,范思鹏,张树才,等.新型超级奥氏体不锈钢654SMO偏析行为及均匀化工艺[J].钢铁,2018,53(8):83.(GAO Jian-bing,FAN Si-peng,ZHANG Shu-cai,et al.Segregation behavior and homogenizing treatment of a new type super austenitic stainless steel 654SMO[J].Iron and Steel,2018,53(8):83.)
[2]王小芳.904L钢的特点及应用[J].化工装备技术,2000,21(1):45.(WANG Xiao-fang.Characteristics and application of904Lsteel[J].Chemical Equipment Technology,2000,21(1):45.)
[3]沈文兴,陈海涛,郎宇平,等.固溶温度对00Cr20Ni25Mo6-Cu3不锈钢点腐蚀性能的影响[J].钢铁研究学报,2018,30(9):741.(SHEN Wen-xing,CHEN Hai-tao,LANG Yu-ping,et al.Effect of solution temperature on pitting corrosion resistance of 00Cr20Ni25Mo6Cu3stainless steel[J].Journal of Iron and Steel Research,2018,30(9):741.)
[4]薄鑫涛.不锈钢钢种发展的一些动向[J].热处理,2007,22(4):5.(BO Xin-tao.Development trend of stainless steels[J].Heat Treatment,2007,22(4):5.)
[5]刘宝喜,高彩茹,郑文超,等.高韧性桥梁钢Q420qD的开发[J].中国冶金,2018,28(2):67.(LIU Bao-xi,GAO Cai-ru,ZHENG Wen-chao,et al.Development of Q420qD bridge steel with high toughness[J].China Metallurgy,2018,28(2):67.)
[6] Nathaniel S L,Phillips L,Scott C,et al.Phase transformations in cast super austenitic stainless steels[J].Journal of Materials Engineering and Performmance,2009,18(9):1285.
[7] Koutsoukis T,Redjaimia A,Fourlaris G.Phase transformations and mechanical properties in heat treated super austenitic stainless steels[J].Materials Science and Engineering A,2013,561:477.
[8] Koutsoukis T,Papadopoulos E G,Zormalia S,et al.Preeipitation sequenees in cold deformed super austenitic stainless steels[J]. Materials Science and Technology,2010,26(9):1041.
[9]雷家柳,赵栋楠,朱航宇,等.高强度帘线钢中氮化钛夹杂的固溶行为分析[J].中国冶金,2018,28(12):31.(LEI Jia-liu,ZHAO Dong-nan,ZHU Hang-yu,et al.Analysis on solid solution behavior of titanium nitride inclusion in high strength tire cord steel[J].China Metallurgy,2018,28(12):31.)
[10]孙晓刚.时效处理对904L超级奥氏体不锈钢腐蚀性能的影响[J].山西冶金,2014,151(5):24.(SUN Xiao-gang.Effect of aging treatment on corrosion behavior of 904Lsuper austenitic stainless steel[J].Shan Xi Metallurgy,2014,151(5):24.)
[11]赵振铎,白晋钢,韩培德,等.超级奥氏体不锈钢254SMo的高温析出相研究[J].热加工工艺,2011,40(16):62.(ZHAO Zhen-duo,BAI Jin-gang,HAN Pei-de,et al.Study on high temperature precipitation phase of super austenitic stainless steel 254SMo[J].Hot Working Technology,2011,40(16):62.)
[12]程宝,邹德宁,刘小花,等.900℃时效条件下超级奥氏体不锈钢904L的析出相研究[J].材料导报,2008,28(11):92.(CHENG Bao,ZOU De-ning,LIU Xiao-hua,et al.Study on precipitated phase in super austenitic stainless steel 904Laged at 900℃[J].Materials Review,2008,28(11):92.)
[13]罗永赞.00Cr20Ni18Mo6CuN高合金不锈钢的开发与奥氏体不锈钢的发展[J].材料开发与应用,1991,6(4):12.(LUO Yong-zan. Development of 00Cr20Ni18Mo6CuN high alloy stainless steel and development of austenitic stainless steel[J].Development and Application of Materials,1991,6(4):12.)
[14]曾莉,张威,王琦,等.超级奥氏体不锈钢的高温变形行为[J].钢铁,2017,52(10):72.(ZENG Li,ZHANG Wei,WANG Qi,et al.Hot deformation behavior of super austenitic stainless steel[J].Iron and Steel,2017,52(10):72.)
[15]黄宇,成国光,杨洪根,等.硼铬微合金钢的脆性断裂失效分析[J].中国冶金,2019,29(1):38.(HUANG Yu,CHENG Guo-guang,YANG Hong-gen,et al.Brittle fracture failure analysis of B-Cr micro-alloyed steel[J].China Metallurgy,2019,29(1):38.)
[16]邹宗园,韩舒婷,李银潇,等.大线能量焊接用钢CGHAZ冲击韧性内在机理分析[J].中国冶金,2019,29(1):18.(ZOU Zong-yuan,HAN Shu-ting,LI Yin-xiao,et al.Analysis of internal mechanism of impact toughness of CGHAZ for high heat input welding steels[J].China Metallurgy,2019,29(1):18.)
[17]李润昌,张环宇,夏银峰,等.980 MPa级双相钢边裂致断带原因分析[J].中国冶金,2018,28(9):37.(LI Run-chang,ZHANG Huan-yu,XIA Yin-feng,et al.Reasons analysis of edge cracks on 980MPa level dual-phase steel strip leading to strip-break[J].China Metallurgy,2018,28(9):37.)
[18]潘坤,陈海涛,朗宇平,等.中温时效对超级奥氏体不锈钢S31254析出相的影响[J].金属热处理,2014,39(11):72.(PAN Kun,CHEN Hai-tao,LANG Yu-ping,et al.Influence of middle temperature aging on precipitation of S31254super austenitic stainless steel[J].Heat Treatment of Metals,2014,39(11):72.)
[19] Andrade T F,Klianga A M.Precipitation of Laves phase in a28%Cr-4%Ni-2%Mo-Nb superferrite stainless steel[J].Materials Characterization,2008,59(5):503.
[20]房菲,李静媛,王一德.合金元素及凝固模式对含氮不锈钢氮含量的影响[J].北京科技大学学报,2014,36(8):1052.(FANG Fei,LI Jing-yuan,WANG Yi-de.Influences of alloying elements and solidification modes on the nitrogen content of nitrogenous stainless steel[J].Journal of University of Scienice and Technology Beijing,2014,36(8):1052.)
[21]韩强,邢淑清,刘炳广,等.06Cr19Ni10奥氏体不锈钢的DTA试验与组织分析[J].钢铁,2013,48(8):61.(HAN Qiang,XING Shu-qing,LIU Bing-guang,et al.Microstructure analysis and DTA Test of 06Cr19Ni10austenitic stainless steel[J].Iron and Steel,2013,48(8):61.)
[22]臧华勋,肖学山,童潮山,等.新型耐蚀超级奥氏体不锈钢中的高温析出相[J].钢铁研究学报,2009,21(2):42.(ZANG Hua-xun,XIAO Xue-shan,TONG Chao-shan,et al.High temperature precipitated phases of new corrosion resistant super austenitic steel[J].Journal of Iron and Steel Research,2009,21(2):42.)
[2]王小芳.904L钢的特点及应用[J].化工装备技术,2000,21(1):45.(WANG Xiao-fang.Characteristics and application of904Lsteel[J].Chemical Equipment Technology,2000,21(1):45.)
[3]沈文兴,陈海涛,郎宇平,等.固溶温度对00Cr20Ni25Mo6-Cu3不锈钢点腐蚀性能的影响[J].钢铁研究学报,2018,30(9):741.(SHEN Wen-xing,CHEN Hai-tao,LANG Yu-ping,et al.Effect of solution temperature on pitting corrosion resistance of 00Cr20Ni25Mo6Cu3stainless steel[J].Journal of Iron and Steel Research,2018,30(9):741.)
[4]薄鑫涛.不锈钢钢种发展的一些动向[J].热处理,2007,22(4):5.(BO Xin-tao.Development trend of stainless steels[J].Heat Treatment,2007,22(4):5.)
[5]刘宝喜,高彩茹,郑文超,等.高韧性桥梁钢Q420qD的开发[J].中国冶金,2018,28(2):67.(LIU Bao-xi,GAO Cai-ru,ZHENG Wen-chao,et al.Development of Q420qD bridge steel with high toughness[J].China Metallurgy,2018,28(2):67.)
[6] Nathaniel S L,Phillips L,Scott C,et al.Phase transformations in cast super austenitic stainless steels[J].Journal of Materials Engineering and Performmance,2009,18(9):1285.
[7] Koutsoukis T,Redjaimia A,Fourlaris G.Phase transformations and mechanical properties in heat treated super austenitic stainless steels[J].Materials Science and Engineering A,2013,561:477.
[8] Koutsoukis T,Papadopoulos E G,Zormalia S,et al.Preeipitation sequenees in cold deformed super austenitic stainless steels[J]. Materials Science and Technology,2010,26(9):1041.
[9]雷家柳,赵栋楠,朱航宇,等.高强度帘线钢中氮化钛夹杂的固溶行为分析[J].中国冶金,2018,28(12):31.(LEI Jia-liu,ZHAO Dong-nan,ZHU Hang-yu,et al.Analysis on solid solution behavior of titanium nitride inclusion in high strength tire cord steel[J].China Metallurgy,2018,28(12):31.)
[10]孙晓刚.时效处理对904L超级奥氏体不锈钢腐蚀性能的影响[J].山西冶金,2014,151(5):24.(SUN Xiao-gang.Effect of aging treatment on corrosion behavior of 904Lsuper austenitic stainless steel[J].Shan Xi Metallurgy,2014,151(5):24.)
[11]赵振铎,白晋钢,韩培德,等.超级奥氏体不锈钢254SMo的高温析出相研究[J].热加工工艺,2011,40(16):62.(ZHAO Zhen-duo,BAI Jin-gang,HAN Pei-de,et al.Study on high temperature precipitation phase of super austenitic stainless steel 254SMo[J].Hot Working Technology,2011,40(16):62.)
[12]程宝,邹德宁,刘小花,等.900℃时效条件下超级奥氏体不锈钢904L的析出相研究[J].材料导报,2008,28(11):92.(CHENG Bao,ZOU De-ning,LIU Xiao-hua,et al.Study on precipitated phase in super austenitic stainless steel 904Laged at 900℃[J].Materials Review,2008,28(11):92.)
[13]罗永赞.00Cr20Ni18Mo6CuN高合金不锈钢的开发与奥氏体不锈钢的发展[J].材料开发与应用,1991,6(4):12.(LUO Yong-zan. Development of 00Cr20Ni18Mo6CuN high alloy stainless steel and development of austenitic stainless steel[J].Development and Application of Materials,1991,6(4):12.)
[14]曾莉,张威,王琦,等.超级奥氏体不锈钢的高温变形行为[J].钢铁,2017,52(10):72.(ZENG Li,ZHANG Wei,WANG Qi,et al.Hot deformation behavior of super austenitic stainless steel[J].Iron and Steel,2017,52(10):72.)
[15]黄宇,成国光,杨洪根,等.硼铬微合金钢的脆性断裂失效分析[J].中国冶金,2019,29(1):38.(HUANG Yu,CHENG Guo-guang,YANG Hong-gen,et al.Brittle fracture failure analysis of B-Cr micro-alloyed steel[J].China Metallurgy,2019,29(1):38.)
[16]邹宗园,韩舒婷,李银潇,等.大线能量焊接用钢CGHAZ冲击韧性内在机理分析[J].中国冶金,2019,29(1):18.(ZOU Zong-yuan,HAN Shu-ting,LI Yin-xiao,et al.Analysis of internal mechanism of impact toughness of CGHAZ for high heat input welding steels[J].China Metallurgy,2019,29(1):18.)
[17]李润昌,张环宇,夏银峰,等.980 MPa级双相钢边裂致断带原因分析[J].中国冶金,2018,28(9):37.(LI Run-chang,ZHANG Huan-yu,XIA Yin-feng,et al.Reasons analysis of edge cracks on 980MPa level dual-phase steel strip leading to strip-break[J].China Metallurgy,2018,28(9):37.)
[18]潘坤,陈海涛,朗宇平,等.中温时效对超级奥氏体不锈钢S31254析出相的影响[J].金属热处理,2014,39(11):72.(PAN Kun,CHEN Hai-tao,LANG Yu-ping,et al.Influence of middle temperature aging on precipitation of S31254super austenitic stainless steel[J].Heat Treatment of Metals,2014,39(11):72.)
[19] Andrade T F,Klianga A M.Precipitation of Laves phase in a28%Cr-4%Ni-2%Mo-Nb superferrite stainless steel[J].Materials Characterization,2008,59(5):503.
[20]房菲,李静媛,王一德.合金元素及凝固模式对含氮不锈钢氮含量的影响[J].北京科技大学学报,2014,36(8):1052.(FANG Fei,LI Jing-yuan,WANG Yi-de.Influences of alloying elements and solidification modes on the nitrogen content of nitrogenous stainless steel[J].Journal of University of Scienice and Technology Beijing,2014,36(8):1052.)
[21]韩强,邢淑清,刘炳广,等.06Cr19Ni10奥氏体不锈钢的DTA试验与组织分析[J].钢铁,2013,48(8):61.(HAN Qiang,XING Shu-qing,LIU Bing-guang,et al.Microstructure analysis and DTA Test of 06Cr19Ni10austenitic stainless steel[J].Iron and Steel,2013,48(8):61.)
[22]臧华勋,肖学山,童潮山,等.新型耐蚀超级奥氏体不锈钢中的高温析出相[J].钢铁研究学报,2009,21(2):42.(ZANG Hua-xun,XIAO Xue-shan,TONG Chao-shan,et al.High temperature precipitated phases of new corrosion resistant super austenitic steel[J].Journal of Iron and Steel Research,2009,21(2):42.)