Dresden 2006 – wissenschaftliches Programm
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DS: Dünne Schichten
DS 24: Poster presentation
DS 24.76: Poster
Dienstag, 28. März 2006, 15:00–17:30, P2
Laser Nitriding of Titanium with various Lasers and Investigation of the Produced TiNx Coatings — •Daniel Höche, Hendrik Schikora, and Peter Schaaf — Universität Göttingen, II. Physikalisches Institut, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
Pure titanium has been nitrided with different lasers under nitrogen atmosphere. This opens the possibility of comparing various parameters and their influence on the nitriding effect and the properties of the produced TiN coatings. Consecutively the properties of these TiNx coatings have been measured and characterized through their macroscopic features like hardness and wear resistance and their microscopic properties like texture, nitrogen profile and so on. Solving the time dependent partial differential equation of the heat problem:
| ρ |
| = ∇ · | ⎛ ⎝ | κ ∇ T | ⎞ ⎠ | + α e−α z (1−R) I(r,t) |
nitrogen diffusion and growing mechanism have been described. Additional information about the relationships between growing direction (dendrites), texture and laser resp. processing parameters will be shown. Finally it is the aim to give an overview about the complicated effects for laser nitriding of titanium.