• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 1994, Vol. 30 ›› Issue (5): 100-104.

• 论文 • 上一篇    下一篇

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GL渗铝钢管合金渗层相组成、变形及焊接性能研究

李亚江;王先礼;楼凤笑   

  1. 山东工业大学
  • 发布日期:1994-09-01

PHASE CONSTITUTIONS IN THE ALLOY LAYER, DEFORMATION AND WELDING PERFORMANCE OF THE CALORIZED STEEL PIPE

Li Yajiang;Wang Xianli;Lou Fengxiao   

  1. Shandong Polytechnic University
  • Published:1994-09-01

摘要： 利用光镜、扫描电镜（SEM）、电子探针（EPMA）、x-射线衍射和电子衍射等试验方法，对感应料浆法（GL）渗铝钢管Fe-Al合金渗层的相组成进行了研究。结果表明，GL渗铝钢管渗铝层主要由α-Fe（Al）固溶体、Fe 3Al和FeAl构成。渗层中不存在含铝更高的FeAl 2、Fe 2Al 5和FeAl 3等脆性相，显著改善了渗铝钢的承受变形能力和焊接性能。

关键词: 变形, 焊接接头, 渗铝钢, 相组成

Abstract: Phase constitutions in the Fe-Al alloy layer of the calorized steel pipe are researched by means of microscopy, SEM, EPA, x-ray diffraction and electron diffraction, etc. Experimental results indicate that the alloy layer of the calorized steel pipe is mainly composed of α-Fe (Al) solid solution, Fe3Al and FeAl. There are not higher aluminium content phases, such as brittle FeAl2, Fe2Al5 and FeAl3, in the Fe-Al alloy layer. The bearing ability to deformation and the weld ability of the calorized steel pipe are remarkably improved.

Key words: Aluminizing steel, Deformation, Phase constituent, Welding joint

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