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应用科学学报 ›› 2000, Vol. 18 ›› Issue (4): 368-370.

• 论文 • 上一篇    

Fe-Al合金TIG焊接头组织与性能研究

丁成钢1, 陈春焕1, 从国志1, 尹衍升2, 包志臣3   

  1. 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
  • 收稿日期:1999-10-10 修回日期:2000-03-20 出版日期:2000-12-31 发布日期:2000-12-31
  • 作者简介:丁成钢(1968-),男,山东东阿人,讲师,硕士;尹衍升(1956-),男,山东胶南人,教授,博导.

A Study on the Microstructure and Properties of Fe-Al Alloy TIG Weld Joint

DING Cheng-gang1, CHEN Chun-huan1, CONG Gou-zhi1, YIN Yan-sheng2, BAO Zhi-chen3   

  1. 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
  • Received:1999-10-10 Revised:2000-03-20 Online:2000-12-31 Published:2000-12-31

PDF

86

被引次数

3

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.

关键词: TIG焊接头, 高温抗氧化性能, Fe3Al合金

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.

Key words: TIG weld joint, Fe3Al alloy, high-temperature oxidation-resistance property

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