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

Bulletin of materials science

Wu Huiqiang¹  Li Yajiang¹  Wang Juan¹ 

[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$$Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan 250061, P.R. of ChinaKey Lab of Liquid Structure and Heredity of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan 250061, P.R. of China$$

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

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The interface of Fe₃Al/Q235 dissimilar materials joint, which was made by vacuum diffusion welding, combines excellently. There are Fe₃Al, FeAl phases and ð›�?-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 ð›�?-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.

【 授权许可】

Unknown