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Lecture

Diffusion in Binary Neighbour-Systems of Shape-Memory Alloys

Friday (18.05.2018)
09:00 - 09:25
Part of:


Diffusion in solids is fundamental in the art and science of materials and an important topic of solid-state physics, physical metallurgy and materials science.  Point defects like vacancies or interstitials mediate diffusion. Dislocations and grain boundaries are other types of defects and can act as high-diffusivity paths. .

This talk reminds the audience to some fundamentals of solid-state diffusion and to major techniques for diffusion measurements. Then we focus on diffusion in the binary systems Cu-Zn, Fe-Al, Fe-Si and Ni-Ti, which are binary neighbours of ternary shape-memory alloys. Self-diffusion is the most basic diffusion phenomenon in any solid. The talk covers at first main features self-diffusion in the pure components. Binary intermetallics are compounds of two metals or of a metal and a semimetal. Their structures are different from those of the constituents. Diffusion in major binary intermetallics of the above mentioned systems is considered as well

Literature: 
H. Mehrer (Vol. Ed.), Diffusion in Solid Metals and Alloys, Landolt-B√∂rnstein. New Series, Group III,  Vol. 33, Springer Verlag, 1990, 
Data Collection

H. Mehrer, Diffusion in Solids, Springer-Verlag, July 2007
Textbook

H. Mehrer, Self-diffusion, Solute-diffusion, and Interdiffusion in Binary Intermetallics, in: Diffusion Foundations 2, 1-72 (2014).
Review Article

Speaker:
Prof. Dr. Helmut Mehrer
University of M√ľnster