| 火焰加热温度对6005A铝合金焊接接头性能的影响 |
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| 引用本文： | 姜澜,魏绪钧,姚广春,王德全.火焰加热温度对6005A铝合金焊接接头性能的影响[J].东北大学学报(自然科学版),2003,24(4):365-368. |
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| 作者姓名： | 姜澜 魏绪钧 姚广春 王德全 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家重点基础研究发展规划项目 (G19990 64 90 3 ) |
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| 摘 要： | 针对铁路交通车辆用 60 0 5A铝合金型材的焊接变形 ,采用火焰加热方法进行矫正·研究了火焰加热温度对焊接接头抗拉强度、硬度及微观组织结构的影响·实验结果表明 ,当加热温度低于 2 0 0℃时 ,焊接接头的抗拉强度、硬度未降低 ,热影响区内软化区的显微组织未发生明显变化 ;当加热温度超过 2 0 0℃时 ,焊接接头的硬度发生较明显降低现象 ,软化区范围加宽·软化区材料性能下降的原因是在火焰加热的热输入过程中过热导致该区晶粒粗大
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| 关 键 词： | 6005A铝合金 焊接接头 加热温度 力学性能 显微组织 软化区 |
| 文章编号： | 1005-3026(2003)04-0365-04 |
| 修稿时间： | 2003年1月10日 |
Effect of Flame Heating Temperature on Properties of Welded Joint of 6005A Aluminium Alloy |
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| JIANG Lan,WEI Xu-jun,YAO Guang-chun,WANG De-quan.Effect of Flame Heating Temperature on Properties of Welded Joint of 6005A Aluminium Alloy[J].Journal of Northeastern University(Natural Science),2003,24(4):365-368. |
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| Authors: | JIANG Lan WEI Xu-jun YAO Guang-chun WANG De-quan |
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| Institution: | (1) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China |
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| Abstract: | Welding distortion of 6005A aluminium alloy was straightened by flame heating. Effects of temperature on tensile strength, hardness and microstructure of 6005A aluminium alloy welding joint by flame heating were studied. Experimental results showed that tensile strength, hardness and microstructure in soften zone were unchangeable clearly under 200°C , whereas tensile strength and hardness decreased apparently when the heating temperature was above 200°C . The decrease of properties in soften zone is due to the overheat, which leads to crystal coarsening during the influence of the straightening heat. |
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| Keywords: | A aluminium alloy welded joint heating temperature microstructure mechanical properties soften zone |
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