| 高速列车转向架SMA490BW耐候钢焊接热影响区模拟试验 |
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| 引用本文： | 张志毅,吴向阳,李文,张卫华,聂媛.高速列车转向架SMA490BW耐候钢焊接热影响区模拟试验[J].电焊机,2011,41(11):62-64. |
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| 作者姓名： | 张志毅 吴向阳 李文 张卫华 聂媛 |
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| 作者单位： | 1. 南车青岛四方机车车辆股份有限公司,山东 青岛,266000
2. 西南交通大学牵引动力国家重点实验室,四川 成都,610031 |
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| 基金项目： | "十一·五"国家科技支撑计划高速转向架技术课题资助项目 |
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| 摘 要： | 实验分析高速列车转向架构架用钢焊接接头热影响区的组织性能.采用Gleeble-3500热模拟试验机对SMA490BW耐候结构钢进行焊接时温度循环的模拟,研究了三种焊接线能量状态下两个不同特征热影响区的组织和性能,为焊接工艺的优化提供理论依据.SMA490BW耐候钢的过热温度区间热影响区组织多为贝氏体,并且组织性能根据采...
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| 关 键 词： | 焊接热循环 SMA490BW耐候钢 热模拟 焊接热影响区 |
Thermal simulation experiments of welding heat affected zone of SMA490BW corrosion resistance steel |
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| ZHANG Zhi-yi,WU Xiang-yang,LI Wen,ZHANG Wei-hua,NIE Yuan.Thermal simulation experiments of welding heat affected zone of SMA490BW corrosion resistance steel[J].Electric Welding Machine,2011,41(11):62-64. |
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| Authors: | ZHANG Zhi-yi WU Xiang-yang LI Wen ZHANG Wei-hua NIE Yuan |
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| Affiliation: | 1.CSR Sifang Locomotive Co.,Ltd.,Qingdao 266000,China;2.State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | In this paper analyzed the microstructures and mechanical properties of welding heat affected zone in bogie frame of the high speed railway.The experiment of welding thermal cycle was carried out for corrosion resistant steel for welded structure SMA 490BW by means of Gleeble-3500 thermal simulator.Studied the microstructures and mechanical properties of two different HAZ in the 3 kinds of heat input conditions.For providing a theoretical basis to the optimization of the welding process.The microstructure of overheating temperature range heat affected zone is bainites mostly;the mechanical properties of the steel would change clearly along with the different heat inputs.With the increase of heat input,the grain increased,strength and toughness decreased.Heat input E=5 kJ/cm as recommended. |
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| Keywords: | welding thermal cycle SMA 490BW corrosion resistance steel thermal simulation welding heat affected zone |
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