Texture in Metallic and CeramicFilms and Coatings

Abstract

The properties of films and coatings can be optimized for a variety of applications by modifying their texture. Understanding how the texture in thin films is formed and how it can be controlled during film growth process is one of the most important areas of texture research. Several examples were selected to illustrate how the texture in films and coatings is developed and to explain how various properties of films are affected by texture. In particular, texture development during electrodeposition of Zn-based automobile coatings, Ni and Ni-based layers for magnetic recording as well as Fe and Fe-based wearresistant coatings, is presented. A new area of application oftexture research to control the high-temperature oxidation resistance of engineering materials is described. Using experimental data for Ni and Ti, the factors affecting texture formation during growth of ceramic oxides are discussed, with special attention paid to the role of substrate texture. The correlation between the oxide texture, grain boundary structure and diffusion of metal and oxygen ions at high temperatures, is considered.

Joint Effect of Chromium and Nickel on Surface Morphology and Preferred Crystal Orientations of Electrodeposited Iron-Based Coatings

“…Nevertheless, preferred orientations in electrodeposited ternary Fe-Cr-Ni alloys remain less investigated. Previously, it was repeatedly shown that even low concentrations of additional metal ions in the electrolyte can cause drastic changes of crystal orientations in electrodeposited metallic materials, (see, e.g., works [20,21]). Therefore, the investigations of joint influence of nickel and chromium on preferred orientations in iron-based coatings seem to be of sufficient scientific interest.…”

Secondary Recrystallization in Grain-Oriented Silicon Steel

“…Experimental Verification of Selective Growth by Temperature Gradient Annealing [15,16] Specimens used in our experiments were prepared by one-stage cold rolling method, using (Al,Si)N as a grain growth inhibitor [17,18]. Selective growth of Goss grains has been verified by the direct observation of texture evolution during grain growth utilizing temperature gradient annealing.…”