[1]张 君,牛 辉.X100管线钢冷裂纹敏感性研究[J].焊管,2011,34(12):22-26.[doi:1001-3938(2011)12-0022-05]
 ZHANG Jun,NIU Hui.Study on Cold Cracking Sensitivity of X100 Grade Pipeline Steel[J].,2011,34(12):22-26.[doi:1001-3938(2011)12-0022-05]
点击复制

X100管线钢冷裂纹敏感性研究
分享到:

《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
34
期数:
2011年第12期
页码:
22-26
栏目:
试验与研究
出版日期:
2011-12-28

文章信息/Info

Title:
Study on Cold Cracking Sensitivity of X100 Grade Pipeline Steel
文章编号:
1001-3938(2011)12-0022-05
作者:
张 君12牛 辉12
(1.国家石油天然气管材工程技术研究中心,陕西 宝鸡721008;
2.宝鸡石油钢管有限责任公司 钢管研究院,陕西 宝鸡 721008)
Author(s):
ZHANG Jun12NIU Hui12
( 1.National Petroleum and Gas Tubular Goods Engineering Technology Research Center,Baoji 721008,Shaanxi,China;
2.Steel Pipe Research Institute of Baoji Petroleum Steel Pipe Co.,Ltd.,Baoji 721008,Shaanxi, China )
关键词:
X100管线钢埋弧焊管插销试验冷裂纹敏感性
Keywords:
X100 pipeline steelsubmerged-arc welded pipe implant testcold cracking sensitivity
分类号:
TG113.25
DOI:
1001-3938(2011)12-0022-05
文献标志码:
A
摘要:
采用插销试验方法研究了埋弧焊条件下X100管线钢热影响区的冷裂纹敏感性及断口特性。试验结果表明,X100管线钢在不预热条件下对冷裂纹不敏感,临界断裂应力σcr为823.5 MPa,与其抗拉强度Rm(823 MPa)相当,可在不预热条件下焊接。当拘束应力继续增大时,发生时效断裂,断口性质为典型的氢致延迟断裂。X100级管线钢抗冷裂纹性好,主要与X100级管线钢Ceq(Pcm)不高(0.21%)、HAZ淬硬不明显有关,过热区组织为粒状B+F,硬度最大为266 HV10,低于临界硬度350 HV10;此外,埋弧焊接方法t100较大,焊接过程中氢逸出时间长;熔渣在隔绝空气的同时CaF2可去除氢,使电弧在低氢的焊接条件下燃烧。
Abstract:
The cold cracking sensitivity and fracture characteristics of X100 pipeline steel HAZ were studied by using submerged-arc welding and implant test . The result indicated that in the case of no preheating, X100 pipeline steel is insensitive to cold cracking, the critical fracture stress σcr is 823.5 MPa, which is equivalent to the tensile strength Rm(823 MPa), so steel can be welded without preheating . When the constraint stress increases continuously, the aging fracture occurs, the fracture characteristics is typical hydrogen induced crack . The reason for high resistance to cold cracking of X100 pipeline steel is mainly due to Ceq(Pcm) for 0. 21%, HAZ hardening is not obvious . The structure of overheated zone is granular B+F, the maximum hardness value is 266HV10, which is lower than the critical hardness value of 350HV10 . Furthermore, the t100 is lager, and the time of hydrogen escape is much long during submerged-arc welding process . The sinter can isolate air, and CaF2 can eliminate hydrogen, so that the electric arc can be combustion in low hydrogen .

参考文献/References:

[1] 谭长瑛,周昭伟,葛学廉.插销试验合理缺口深度的讨论[J] .焊接学报,1981, 2 (4):135-142.
[2] 张文钺,杜则裕,许玉环,等.国产低合金高强钢冷裂判据的建立[J] .天津大学学报,1983(8):61-72.
[3] GRAN JON H. Survey of Cracking Test[J]. Welding in the World,1979,17(3/4):81-90.
[4] 张文钺.焊接冶金学(基本原理)[M] .北京: 机械出版社,1999.
[5] 周震丰.焊接冶金学(金属焊接性)[M] .北京:机械出版社,1996.

相似文献/References:

[1]许晓锋,李为卫,徐婷.通用焊接检验尺测量埋弧焊管焊缝余高的修正[J].焊管,2009,32(7):54.[doi:1001-3938(2009)07-0054-04]
 XU Xiao-feng,LI Wei-wei,XU Ting.Amendment to the Weld Reinforcement Measurement of SAW Pipe with General Welding Measurement Ruler[J].,2009,32(12):54.[doi:1001-3938(2009)07-0054-04]
[2]肖英杰,孙常全 编译.X100、X120管线钢的研发和生产[J].焊管,2010,33(5):67.[doi:1001-3938(2010)05-0067-05]
 Edited and translated by XIAO Ying-jie,SUN Chang-quan.Research & Development and Production of X100/X120 Pipeline Steel[J].,2010,33(12):67.[doi:1001-3938(2010)05-0067-05]
[3]张晓强.埋弧焊管弯曲试验开裂原因分析[J].焊管,2010,33(6):58.[doi:1001-3938(2010)06-0058-02]
 ZHANG Xiao-qiang.Cracking Reason Analysis on SAWH Pipe Bend Test[J].,2010,33(12):58.[doi:1001-3938(2010)06-0058-02]
[4]韩新利,李为卫,马小芳,等.国外直缝埋弧焊管先进制造及质量检测技术[J].焊管,2010,33(9):29.[doi:1001-3938(2010)09-0029-05]
 HAN Xin-li,LI Wei-wei,MA Xiao-fang,et al.Advanced Technologies of Manufacture and Inspection for Overseas SAWL Linepipe[J].,2010,33(12):29.[doi:1001-3938(2010)09-0029-05]
[5]郑中,赵迪,刘清友.螺旋焊管用X100热轧卷板的研制[J].焊管,2011,34(1):17.[doi:1001-3938(2011)01-0017-08]
 ZHENG Zhong,ZHAO Di,LIU Qing-you.Research on X100 Hot Rolled Coil Used for Helical Submerged Arc Welded (SAWH) Pipe[J].,2011,34(12):17.[doi:1001-3938(2011)01-0017-08]
[6]桂光正.焊缝形貌对埋弧焊缝自动超声波探伤结果的影响分析[J].焊管,2011,34(6):54.[doi:1001-3938(2011)06-0054-04]
 GUI Guang-zheng.Analysis on weld seam appearance affect Submerged arc weld seam automatic ultrasonic testing result[J].,2011,34(12):54.[doi:1001-3938(2011)06-0054-04]
[7]王 晨,任国庆.埋弧焊管超声波探伤标准反射体的选择[J].焊管,2011,34(11):58.[doi:1001-3938(2011)11-0058-04]
 WANG Chen,REN Guo-qing.Standard Reflector Selection of Submerged Arc Welded Pipe Ultrasonic Testing (UT)[J].,2011,34(12):58.[doi:1001-3938(2011)11-0058-04]
[8]黄卫锋,钱伟方,王治国.UOE焊管埋弧焊焊接过程变形仿真研究[J].焊管,2011,34(12):12.[doi:1001-3938(2011)12-0012-05]
 HUANG Wei-feng,QIAN Wei-fang,WANG Zhi-guo.Simulation Research on UOE Pipe Deformation During Submerged-arc Welding[J].,2011,34(12):12.[doi:1001-3938(2011)12-0012-05]
[9]李云龙,吴金辉,张鸿博,等.埋弧焊管导向弯曲试验的探讨[J].焊管,2012,35(1):57.[doi:1001-3938(2012)01-0057-03]
 LI Yun-long,WU Jin-hui,ZHANG Hong-bo,et al.Discussion on the Guide Bend Test for Submerged-arc Welded Pipe[J].,2012,35(12):57.[doi:1001-3938(2012)01-0057-03]
[10]甘正红,张 辉.直缝埋弧焊管焊缝横向裂纹的超声波检测[J].焊管,2012,35(5):54.[doi:1001-3938(2012)05-0054-04]
 GAN Zheng-hong,ZHANG Hui.Ultrasonic Inspection of the Transverse Cracks in SAWL Pipe Weld[J].,2012,35(12):54.[doi:1001-3938(2012)05-0054-04]

备注/Memo

备注/Memo:
作者简介:张 君(1981—),男,陕西西安人,2006年毕业于西安石油大学,本科,现在宝鸡石油钢管有限责任公司钢管研究院从事低合金高强钢钢板及油气管道输送用钢管焊接工艺研究和新产品开发工作。
更新日期/Last Update: