| Fe-Al合金TIG焊接头组织与性能研究 |
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| 引用本文： | 丁成钢,陈春焕,从国志,尹衍升,包志臣.Fe-Al合金TIG焊接头组织与性能研究[J].应用科学学报,2000,18(4):368-370. |
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| 作者姓名： | 丁成钢 陈春焕 从国志 尹衍升 包志臣 |
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| 作者单位： | 1. 大连铁道学院材料科学与工程系, 辽宁大连 116028;2. 山东工业大学材料学院, 山东济南 250061;3. 山东泰钢集团公司, 山东莱芜 271100 |
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| 摘 要： | 借助能谱的成分分析(EDS),用X射线衍射(XRD)及透射电镜的选区电子衍射技术(SAED),确定了焊缝金属的组织结构,并对焊缝金属和Fe3Al合金母材的高温(900℃)抗氧化性能进行试验比较.研究结果表明,TIG焊方法适用于Fe3Al合金的焊接,焊缝金属为Fe3Al合金.焊接接头的抗拉强度低于母材,且拉伸试样断在过热区,焊缝的高温抗氧化性略低于母材.
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| 关 键 词： | TIG焊接头 高温抗氧化性能 Fe3Al合金 |
| 收稿时间： | 1999-10-10 |
| 修稿时间： | 2000-03-20 |
A Study on the Microstructure and Properties of Fe-Al Alloy TIG Weld Joint |
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| DING Cheng-gang,CHEN Chun-huan,CONG Gou-zhi,YIN Yan-sheng,BAO Zhi-chen.A Study on the Microstructure and Properties of Fe-Al Alloy TIG Weld Joint[J].Journal of Applied Sciences,2000,18(4):368-370. |
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| Authors: | DING Cheng-gang CHEN Chun-huan CONG Gou-zhi YIN Yan-sheng BAO Zhi-chen |
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| Institution: | 1. Department of Material Science and Engineering, Dalian Railway Institute, Dalian 116028, China;2. Material Institute, Shandong University of Technology, Jinan 250061, China;3. Shandon TaiGang Group Corp., Laiwu 271100, China |
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| Abstract: | The microstructure of weld metal was studied by means of XRD, SAED and EDS. High-temperature oxidation-resistance test and tensile test of joint were carried out. The results are as follows:the weld metal is Fe3Al. The tensile strength of the weld joint is inferior to that of the base metal, and the location of rupture is in the overheated zone. The oxidation-resistance property (900℃) of the base metal is superior to that of the weld metal. |
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| Keywords: | Fe3Al alloy TIG weld joint high-temperature oxidation-resistance property |
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