| X80管线钢埋弧焊匹配焊丝试验 |
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| 引用本文： | 张敏,姚成武,付,吕振林.X80管线钢埋弧焊匹配焊丝试验[J].焊接学报,2006,27(4):64-68. |
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| 作者姓名： | 张敏 姚成武 付 吕振林 |
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| 作者单位： | 西安理工大学,材料科学与工程学院,西安,710048 |
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| 摘 要： | 通过分析高强度低合金钢焊缝熔敷金属常见显微组织对其力学性能的影响,确定X80管线钢用埋弧焊丝熔敷金属组织应以大量针状铁素体(AF)和少量粒状贝氏体(GB)的复合组织.从相变动力学原理出发,结合针状铁素体(AF)非自发形核机制和微合金组织韧化理论,选择Mn-Ni-Mo-Ti-B合金系进行X80管线钢匹配焊丝的试制.结果表明,合理选择和控制合金元素,可以获得理想的焊缝熔敷金属组织和强韧性以及低温韧性要求,试制的1号焊丝能够满足X80管线钢的使用要求.
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| 关 键 词： | X80管线钢 埋弧焊 低温韧性 针状铁素体 夹杂物 |
| 文章编号： | 0253-360X（2006）04-064-05 |
| 收稿时间： | 2005-02-21 |
| 修稿时间： | 2005-02-21 |
Submerged arc welding wire matched with X80 pipeline steel |
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| ZHANG Min,YAO Cheng-wu,FU Chong and LV Zhen-lin.Submerged arc welding wire matched with X80 pipeline steel[J].Transactions of The China Welding Institution,2006,27(4):64-68. |
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| Authors: | ZHANG Min YAO Cheng-wu FU Chong and LV Zhen-lin |
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| Affiliation: | School of Material Science and Engineering, Xi''an University of Technology, Xi''an 710048, China,School of Material Science and Engineering, Xi''an University of Technology, Xi''an 710048, China,School of Material Science and Engineering, Xi''an University of Technology, Xi''an 710048, China and School of Material Science and Engineering, Xi''an University of Technology, Xi''an 710048, China |
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| Abstract: | By analyzing the influence of the microstructure for weld deposited metal of high strength low-alloy steel on mechanical properties,the compound microstructure deposit with mainly the acicular ferrite(AF) and a small quantity of the granular bainite(GB) was applied to the welding wire for X80 pipeline steel.Based on the driving force concept of microstructure transformation,and combined with the acicular ferrite nucleated mechanism at nonmetallic inclusions and microalloy toughness theory,the Mn-Ni-Mo-Ti-B alloy was selected to study the welding wire of X80 pipeline steel.The results of experiments show that the weld deposited metal will fulfil the demands of strength and toughness and low-temperature toughness by choosing and controlling alloy elements rationally,and the developed 1# welding wire can be used for X80 pipeline steel. |
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| Keywords: | X80 pipeline steel submerged arc welding low temperature toughness acicular ferrite inclusion |
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