Effect of Cr and Ni on diffusion bonding of Fe3Al with steel

Bulletin of materials science

Li Yajiang¹  Ma Haijun²  Wang Juan² 

[1] National Key Lab of Advanced Bonding Production Technology, Harbin Institute of Technology, Harbin 150001, China$$Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China$$National Key Lab of Advanced Bonding Production Technology, Harbin Institute of Technology, Harbin 150001, ChinaNational Key Lab of Advanced Bonding Production Technology, Harbin Institute of Technology, Harbin 150001, China$$Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China$$Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, ChinaNational Key Lab of Advanced Bonding Production Technology, Harbin Institute of Technology, Harbin 150001, China$$Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China$$;National Key Lab of Advanced Bonding Production Technology, Harbin Institute of Technology, Harbin 150001, China$$National Key Lab of Advanced Bonding Production Technology, Harbin Institute of Technology, Harbin 150001, ChinaNational Key Lab of Advanced Bonding Production Technology, Harbin Institute of Technology, Harbin 150001, China$$

关键词: Cr;    Ni;    Fe3Al/steel interface;    diffusion bonding.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Microstructure at the diffusion bonding interface between Fe₃Al and steel including Q235 low carbon steel and Cr18â€�?�Ni8 stainless steel was analysed and compared by means of scanning electron microscopy and transmission electron microscopy. The effect of Cr and Ni on microstructure at the Fe₃Al/steel diffusion bonding interface was discussed. The experimental results indicate that it is favourable for the diffusion of Cr and Ni at the interface to accelerate combination of Fe₃Al and steel during bonding. Therefore, the width of Fe₃Al/Cr18â€�?�Ni8 interface transition zone is more than that of Fe₃Al/Q235. And Fe3Al dislocation couples with different distances, even dislocation net occurs at the Fe₃Al/Cr18â€�?�Ni8 interface because of the dispersive distribution of Cr and Ni in Fe₃Al phase.

【 授权许可】

Unknown