[1]张敏,赵鹏康,毕宗岳,等.X80管线钢用气体保护焊丝的研制[J].焊管,2010,33(10):23-28.[doi:1001-3938(2010)10-0023-06]
　ZHANG Min,ZHAO Peng-kang,BI Zong-yue,et al.Development of Gas-shielded Welding Wire for X80 Pipeline Steel[J].,2010,33(10):23-28.[doi:1001-3938(2010)10-0023-06]
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X80管线钢用气体保护焊丝的研制
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
33
期数:
2010年第10期
页码:
23-28
栏目:
试验与研究
出版日期:
2010-10-28

文章信息/Info

Title:
Development of Gas-shielded Welding Wire for X80 Pipeline Steel
文章编号:
1001-3938(2010)10-0023-06
作者:
张敏1; 赵鹏康1; 毕宗岳1; 2; 张博1; 李继红1; 张锦刚2; 余晗2; 李博锋2
（1.西安理工大学材料科学与工程学院，西安710048；
2.宝鸡石油钢管有限责任公司，陕西宝鸡721008）
Author(s):
ZHANG Min1; ZHAO Peng-kang1; BI Zong-yue1; 2; ZHANG Bo1; LI Ji-hong1; ZHANG Jin-gang2; YU Han2; LI Bo-feng2
(1.School of Material Science and Engineering,Xi’an University of Technology,Xi’an 710048,China;
2.Baoji Petroleum Steel Pipe Co,Ltd,Baoji 721008,Shaanxi,China)
关键词:
X80管线钢; 焊丝; 针状铁素体; 粒状贝氏体; 熔敷金属; 韧窝; 夹杂物
Keywords:
X80 pipeline steel; welding wire; acicular ferrite; granular bainite; deposited metal; dimple; inclusions
分类号:
TG422.3
DOI:
1001-3938(2010)10-0023-06
文献标志码:
A
摘要:
为了满足X80管线钢焊接时的强度、冲击韧性等性能要求，设计了以Mn-Ni-Mo-Ti-B为合金系的焊丝。确定了X80管线钢用气体保护焊丝熔敷金属组织应以大量针状铁素体和少量粒状贝氏体的复合组织为主，同时明确了焊丝的化学成分。试验分析表明，所用焊丝熔敷金属强度、冲击韧性和硬度等均达到了要求值。焊缝熔敷金属显微组织也达到了设计目标，即获得了以针状铁素体为主，其间弥散析出少量粒状贝氏体的焊缝复合组织。同时利用扫描电镜对冲击断口形貌进行了分析，断口具有典型的韧窝。最后利用透射电镜探究了针状铁素体在夹杂物表面的形核机理。
Abstract:
In order to satisfy requirements during X80 pipeline steel welding,such as strength,impact toughness and other properties,the welding wire with Mn-Ni-Mo-Ti-B alloy system was designed-Furthermore,the deposited metal structure of gas-shielded welding wire based on composite structure for X80 pipeline steel was determined,containing plenty of acicular ferrite and a few granular bainite,at the same time,the chemical composition of welding wire was determined-Through test analysis,the deposited metal strength,impact toughness and hardness values of welding wire all reached the required value,and the microstructure of weld deposited metal also reached the designed goal,which was composed by a large number of acicular ferrite and a few granular bainite-At the same time,impact fracture profile was analyzed by scanning electron microscope,the fracture possessed typical dimple-Finally,the nucleation mechanism of the acicular ferrite in surface of the inclusions was explored by the transmission electron microscope

参考文献/References:

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备注/Memo

备注/Memo:
作者简介：张敏（1967—），男，工学博士，教授，主要从事新型焊接材料、焊接结构断裂强度和焊接工程结构方面的研究，已发表论文60余篇。

收稿日期：2010-05-17
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