Structural stability of coatings
- 1 March 1986
- journal article
- research article
- Published by Maney Publishing in Materials Science and Technology
- Vol. 2 (3) , 250-255
- https://doi.org/10.1179/026708386790123332
Abstract
Structural changes in coatings are caused by the selective removal of elements at the outer face and by element transfer to and from the base alloy. The physical metallurgy of the diffusion processes involved in these changes is summarized. It is shown that complex situations can be modelled by using the concept of a diffusion path on the isothermal section of a ternary phase diagram and this concept is applied to the production of cementation coatings and to the behaviour of cementation and overlay coatings in service. Attempts to devise diffusion barriers to the element transfer are also discussed. MST/287Keywords
This publication has 8 references indexed in Scilit:
- On the layer sequence and morphology in solid-state displacement reactionsOxidation of Metals, 1984
- Grain boundary diffusion mechanisms in metalsMetallurgical Transactions A, 1982
- A new diffusion-inhibited oxidation-resistant coating for superalloysThin Solid Films, 1982
- Theoretical diffusion profiles in single-phase ternary systemsMetal Science, 1980
- Interdiffusion in ternary Co-Cr-AI alloysMetal Science, 1980
- A feasibility study of a diffusion barrier between Ni-Cr-Al coatings and nickel-based eutectic alloysThin Solid Films, 1978
- Diffusion paths and structures in multiphase Cu−Ni−Zn couples at 775°CMetallurgical Transactions A, 1977
- Diffusion Behaviour in Ternary, Multiphase SystemsCanadian Metallurgical Quarterly, 1963