Formation of intermetallics at the interface of explosively welded Ni-Al multilayered composites during annealing

International Conference on Mechanical Engineering, Automation and Control Systems 2015

机械制造;无线电电子学;计算机科学

Ogneva, T.S.^1 ; Lazurenko, D.V.^1 ; Bataev, I.A.^1 ; Mali, V.I.^2 ; Esikov, M.A.^2 ; Bataev, A.A.^1

Department of Materials Science, Novosibirsk State Technical University, 20, Karla Marksa ave., Novosibirsk

630073, Russia^1

Lavrentyev Institute of Hydrodynamics, 15, Lavrentieva ave., Novosibirsk

630090, Russia^2

关键词: After-heat treatment;    Intermetallic layer;    Intermetallic phasis;    Multi-layered composites;    Multilayer composite;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/124/1/012132/pdf
DOI  :  10.1088/1757-899X/124/1/012132

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The Ni-Al multilayer composite was fabricated using explosive welding. The zones of mixing of Ni and Al are observed at the composite interfaces after the welding. The composition of these zones is inhomogeneous. Continuous homogeneous intermetallic layers are formed at the interface after heat treatment at 620 °C during 5 h These intermetallic layers consist of NiAl3and Ni2Al3phases. The presence of mixed zones significantly accelerates the growth rate of intermetallic phases at the initial stages of heating.