The Ni-Al-Hf Multiphase Diffusion

Archives of Metallurgy and Materials

B. Wierzba¹  J. Romanowska¹  M. Zagula-Yavorska¹  J. Sieniawski¹  J. Markowski² 

[1] Rzeszów University of Technology, Department of Materials Science, 2 W. Pola Str ., 35-959 Rzeszów, Poland;Wroc?aw University of Technology, Faculty of Electronics, 11/17 Z. Janiszewskiego Str ., 50-372 Wroc?aw, Poland

关键词: Keywords: NiAlHf system;    reactive diffusion;    simulation;    aluminide coatings;   

DOI  :  10.1515/amm-2016-0100

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The generalized Darken method was applied to simulate the diffusion between γ-Ni| γ’-Ni3Al and γ’-Ni3Al|β-NiAl interfaces. The results of calculations were compared with the experimental concentration’s profiles of nickel, aluminum and hafnium in aluminide and hafnium doped aluminide coatings deposited by the CVD and PVD methods on pure nickel. The method deals with the Wagner’s integral diffusion coefficients and thermodynamic data - activities of components. The experimental results agree with the simulated ones.

【 授权许可】

Unknown