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

Abstract

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

Li Yajiang;Wang Xianli;Lou Fengxiao. PHASE CONSTITUTIONS IN THE ALLOY LAYER, DEFORMATION AND WELDING PERFORMANCE OF THE CALORIZED STEEL PIPE[J]. , 1994, 30(5): 100-104.

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

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