退火对热轧X80管线钢织构和断口分离的影响
Effect of Annealing on Texture and Fracture Separation of Rolled X80 Pipeline Steel
摘 要
对“西气东输”二线工程使用的X80管线钢进行拉伸、冲击、落锤撕裂等试验时,在试样断口上产生了明显的断口分离现象;采用背散射电子衍射(EBSD)试验方法,通过分析该管线钢退火前后的显微组织和织构形态的变化,研究了断口分离产生的原因.结果表明:热轧态的X80钢板中存在明显的{111}〈110〉和{110}〈001〉织构;在700℃退火2 h后,这两类织构组分有所减少,并且出现了新的{110}〈111〉织构;退火后,该管线钢材料的平均晶粒尺寸由原来的2.27 μm变为2.84 μm,断口分离程度消除或减轻.
断口分离
织构
退火
X80 pipeline steel
fracture separation
texture
anneding
Abstract
The tension,impact and drop welght tesring (DWT) tests were perfomed on X80 pipeline steel for the 2nd west-east gas pipeline project.Obvious fracture separation was found on the fracture surface of the sample.The fracture separation reason was investigated by using electron backscatter diffraction(EBSD) technique to analyze the transformation of microstructure and textures of the pipeline steel before and after annealing.The results show that there were obvious textures of {111} 〈110〉 and {110} 〈001〉 in hot rolled X80 steel plate,but a reduction of the two textures and a new texture of {110} 〈111〉 was found after annealing at 700℃ for 2 h.The average grain size of the pipeline steel changed from 2.27 μm to 2.84 μm,and the fracture separation was reduced or even eliminated after annealing.
中图分类号 TG111.91
所属栏目 试验研究
基金项目
收稿日期 2009/8/10
修改稿日期 2010/4/13
网络出版日期
作者单位点击查看
备注李洋(1980-),男,陕西山阳人,工程师,硕士.
引用该论文: LI Yang,LIN Guan-fa,JI Ling-kang,HUO Chun-yong,FENG Yao-rong. Effect of Annealing on Texture and Fracture Separation of Rolled X80 Pipeline Steel[J]. Materials for mechancial engineering, 2010, 34(10): 14～18
李洋,林冠发,吉玲康,霍春勇,冯耀荣. 退火对热轧X80管线钢织构和断口分离的影响[J]. 机械工程材料, 2010, 34(10): 14～18
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】TAKEUCHI I,OKAGUCHI S,MAKINO H.Development and evaluation of high strength line pipe for high pressure gas transmission pipeline[C]//Proceedings of International Seminar on Application of High Strength Line Pipe and Integrity Assessment of Pipeline.Xi′an:[s.n.],2006.
【2】WIKOWSKI G M,WANG Y Y,RUDLAND D.Recent effect on characterizing propagation ductile fracture resistance of line pipe steels[J].Denys R Pipeline Technology,2000,1:359-386.
【3】KAZUTOSHI K,FUKDA M,SUGISAWA S.Separations occur in controlled rolled hot strips[J].Transaction ISIJ,1979,19(1):324-331.
【4】GUO W L,DONG H R,LU M X,et al.The coupled effects of thickness and delamination on cracking resistance of X70 pipeline steel[J].Inter J Pressure Vessels and Piping,2002,79(6):403-412.
【5】熊庆人,冯耀荣,霍春勇,等.X70管线钢的断口分离现象分析研究[J].机械工程材料,2005,29(12):21-25.
【6】NAKAMURA T,PARKS D M.Three dimensional stress crack front fields in a thin Ductile Plate[J].Journal of the Mechanics and Physics of Solids,1990,38(6):787-812.
【7】GORDON R,GRAY M.Preliminary dynamic fracture analysis[C]//Proceedings of International Seminar on Fracture Control Technology for X80 High Pressure Gas Transmission Pipeline,Xi′an:[s.n.],2007.
【8】DEMOFONTI G,MANNUCCI G.Arrest assessment of X100 TMCP linepipe used for high pressure gas pipipeline[C]//Proceedings of International Seminar on Fracture Control Techno-logy for X80 High Pressure Gas Transmission Pipeline.Xi′an:[s.n.],2007.
【9】FELBER S,SCHNEESEISS G,VARGA T.Crack-arrest in a pipeline Steel[C]//Proceedings of the 2nd International Pipeline Technology Conference.Ostend:[s.n.],1995.
【10】杨政,任斌,赵新伟,等.铁素体管线钢的分层裂纹及其对断裂的影响[J].材料研究学报,2007,21(3):311-318.
【11】王清江,单以银,滕华元,等.控制轧制钢中的断口分离现象[J].兵器材料科学与工程,1992,15(9):50-54.
【2】WIKOWSKI G M,WANG Y Y,RUDLAND D.Recent effect on characterizing propagation ductile fracture resistance of line pipe steels[J].Denys R Pipeline Technology,2000,1:359-386.
【3】KAZUTOSHI K,FUKDA M,SUGISAWA S.Separations occur in controlled rolled hot strips[J].Transaction ISIJ,1979,19(1):324-331.
【4】GUO W L,DONG H R,LU M X,et al.The coupled effects of thickness and delamination on cracking resistance of X70 pipeline steel[J].Inter J Pressure Vessels and Piping,2002,79(6):403-412.
【5】熊庆人,冯耀荣,霍春勇,等.X70管线钢的断口分离现象分析研究[J].机械工程材料,2005,29(12):21-25.
【6】NAKAMURA T,PARKS D M.Three dimensional stress crack front fields in a thin Ductile Plate[J].Journal of the Mechanics and Physics of Solids,1990,38(6):787-812.
【7】GORDON R,GRAY M.Preliminary dynamic fracture analysis[C]//Proceedings of International Seminar on Fracture Control Technology for X80 High Pressure Gas Transmission Pipeline,Xi′an:[s.n.],2007.
【8】DEMOFONTI G,MANNUCCI G.Arrest assessment of X100 TMCP linepipe used for high pressure gas pipipeline[C]//Proceedings of International Seminar on Fracture Control Techno-logy for X80 High Pressure Gas Transmission Pipeline.Xi′an:[s.n.],2007.
【9】FELBER S,SCHNEESEISS G,VARGA T.Crack-arrest in a pipeline Steel[C]//Proceedings of the 2nd International Pipeline Technology Conference.Ostend:[s.n.],1995.
【10】杨政,任斌,赵新伟,等.铁素体管线钢的分层裂纹及其对断裂的影响[J].材料研究学报,2007,21(3):311-318.
【11】王清江,单以银,滕华元,等.控制轧制钢中的断口分离现象[J].兵器材料科学与工程,1992,15(9):50-54.
相关信息
