• Fine structure at the diffusion welded interface of Fe3Al/Q235 dissimilar materials

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      https://www.ias.ac.in/article/fulltext/boms/024/06/0639-0642

    • Keywords

       

      Fe3Al/Q235 dissimilar material joint; vacuum diffusion welding; fine structure.

    • Abstract

       

      The interface of Fe3Al/Q235 dissimilar materials joint, which was made by vacuum diffusion welding, combines excellently. There are Fe3Al, FeAl phases and 𝛼-Fe (Al) solid solution at the interface of Fe3Al/Q235. Aluminum content decreases from 28% to 1.5% and corresponding phase changes from Fe3Al with DO3 type body centred cubic (bcc) structure to 𝛼-Fe (Al) solid solution with B2 type bcc structure. All phases are present in sub-grain structure level and there is no obvious brittle phases or micro-defects such as pores and cracks at the interface of Fe3Al/Q235 diffusion joint.

    • Author Affiliations

       

      Wang Juan1 Li Yajiang1 Wu Huiqiang1

      1. Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan 250061, P.R. of China
    • Dates

       

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