[1]李学达,范玉然,陈 亮,等.多道次环焊焊缝组织变化规律与冲击韧性的关系研究[J].焊管,2015,38(1):11-16.[doi:１００１－３９３８（２０１5）01-0011-06]
　LI Xueda,FAN Yuran,CHEN Liang,et al.Research on Relation between the Change Rule of Multiple PassesCircumferential Weld Microstructure and Impact Toughness[J].,2015,38(1):11-16.[doi:１００１－３９３８（２０１5）01-0011-06]
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多道次环焊焊缝组织变化规律与冲击韧性的关系研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
38
期数:
2015年第1期
页码:
11-16
栏目:
试验与研究
出版日期:
2015-01-28

文章信息/Info

Title:
Research on Relation between the Change Rule of Multiple Passes
Circumferential Weld Microstructure and Impact Toughness
文章编号:
１００１－３９３８（２０１5）01-0011-06
作者:
李学达1; 范玉然2; 陈 亮1; 尚成嘉1
（1. 北京科技大学 材料科学与工程学院，北京 100083；
2. 中国石油天然气管道科学研究院，廊坊 065001）
Author(s):
LI Xueda1;  FAN Yuran2;  CHEN Liang1;  SHANG Chengjia1
（1.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China；
2. Pipeline Research Institute of CNPC, Langfang 065001, China）
关键词:
焊接; 环焊缝金属; 临界再热粗晶区; 链状M/A; 冲击韧性
Keywords:
welding;  circumferential weld metal; critical reheat coarse-grained zone; chain M/A; impact toughness
分类号:
TG407
DOI:
１００１－３９３８（２０１5）01-0011-06
文献标志码:
A
摘要:
采用力学性能试验、断口及其金相组织的原位分析等方法，研究了环焊缝韧性下降的原因。结果表明，在多道次环焊焊接过程中，焊缝组织由于受到后一道次热输入的影响，其组织会产生连续变化。多道焊焊缝中的组织按二次热循环的温度从高到低按柱状晶组织、粗晶区组织、细晶区组织、粗晶区与M/A混合组织、亚临界粗晶区组织的顺序呈规律性重复变化。其中粗晶区与回转奥氏体冷却形成的晶界链状M/A组元是焊缝韧性下降的主要原因。
Abstract:
In this article, it studied the reason caused the circumferential weld toughness decrease, through analyzing mechanical properties, fracture and metallographic structure etc. The results showed during multiple passes welding process, the weld structure generates continuous variations due to heat inputting from the later pass welding. The structure sequence of multiple passes weld is regularly repeated change according to the temperature of the secondary thermal cycle from high to low, the columnar crystal, coarse crystal area organizations, fine grain zone, combination structure of coarse grain zone and M/A hybrid organization, subcritical coarse grain zone. The grain boundary chain M/A component caused by coarse grain area and rotary austenite cooling is the main reason for weld toughness decrease.

参考文献/References:

［1］SHANG C J ,WANG X X, LIU Q Y, et al. International ｓeminar on ｗelding of ｐipeline ｓteel[C] //Welding of High ｓtrength Pipeline Steels International Seminar. Arasa, Brazil：[s.n.]，2011: 15-18.
［2］聂文金, 尚成嘉, 由洋, 等. 抗变形X100管线钢模拟焊接热影响区的组织与韧性研究[J]. 金属学报, 2012，48(07): 797-806.
［3］缪成亮, 尚成嘉, 王学敏, 等. 高Nb X80 管线钢焊接热影响区显微组织与韧性[J]. 金属学报, 2010, 46(05): 541-546.
［4］YOU Y，SHANG C J，NIE W J，et al. Investigation on the microstructure and toughness of coarse grained heat affected zone in X100 multi-phase pipeline steel with high Nb content[J]. Mater Sci Eng A，2012(558)：692-701.
［5］KIM C B. Microstructure and local brittle zone phenomena in high strength low-alloyed welds[J]. Metall Trans，1991,22A (01)：139-149.
［6］MATSUDA F. Review of mechanical and metallurgical investigations of martensite-austenite constituent in welded joints in Japan[J]. Welding in the World，1996，37(03)：134-154.
［7］L DAVIS C. cleavage initiation in the intercritically reheated coarse-grained heat-affected zone: Part1.fractographic evidence[J]. Metall. Trans, 1994, 25A (03): 563-573.
［8］MOHSENI P, SOLBERG J K, KARLSEN M, et al. Cleavage fracture initiation at M-A constituents in intercritically coarse-grained heat affected zone[J]. Metall Trans, 2014 (45A)：384-394.
［9］LI Y，BAKER T N. Effect of morphology of martensite-       austenite phase on fracture of weld heat affected zone in vanadium and niobium microalloyed steels[J]. Mater Sci Technol，2010 (26)：1029-1040.
［10］赵辉，胡水平，武会宾. X120管线钢焊接热影响区的模拟研究[J]. 热加工工艺，2010，39(01)：20-23.［11］齐丽华，刘小峰，刘迎来，等. X80螺旋埋弧焊管对接环焊接头失效裂纹分析[J]. 焊管, 2012，36(06):16-21.
［12］蒋承君. 油气输送管线对接环焊缝检测技术研究[D]. 西安：西安石油大学，2008.
［13］LI X D，SHANG C J， MA X P，et al. Study on the toughness of X100 pipeline steel heat affected zone[C]// Proceedings of Energy Materials 2014, CSM-TMS. Xi’an, China ：[s.n.]，2014：597-604.
［14］ H K D H BHADESHIA. About calculating the characteristics of the martensite-austenite constituent[C]// Proceedings of the International Seminar on Welding of High Strength Pipeline Steel.TMS，Araxa，Brazil：[s.n.]，2011：99-106.
［15］ LI X D，MA X P，SUBRAMANIAN S V，et al. Influence of prior austenite grain size on martensite-austenite constituent and toughness in the heat affected zone of 700 MPa high strength linepipe steel[J]. Mater Sci Eng A，2014 (616)：141-147.

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备注/Memo

备注/Memo:
收稿日期：2014-08-15
基金项目：新一代高钢级含铌管线钢及钢管的焊接性和应用技术联合项目（2011-D056-1）。
作者简介：李学达（1985—），男，博士在读，北京科技大学材料科学与工程学院材料物理系，博士课题从事管线钢焊接物理冶金方面的研究。
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