Paper Title:
Micro-Arc Nitriding of Titanium Surface
  Abstract

When a surface of a titanium disk was melted in an atmosphere of pure nitrogen using a 3D Micro Welder which was designed by the present authors, the surface was nitrided to a depth of 90 to 260μm depending on the arc current of 6 to 24 A. The concentration of nitrogen in the nitrided layer was approximately 50 mol% at the surface, and the concentration decreased as the distance from the surface increased. A TiN layer was formed at the surface, and beneath the TiN layer, a dual phase layer of TiN and α-Ti was formed. Vickers hardness was approximately 1800 in the TiN layer and it varied from 900 to 200 in the dual phase layer as the distance from the surface increased.

  Info
Periodical
Materials Science Forum (Volumes 492-493)
Edited by
Omer Van der Biest, Michael Gasik, Jozef Vleugels
Pages
225-228
DOI
10.4028/www.scientific.net/MSF.492-493.225
Citation
K. Matsuura, H. Arita, T. Ohmi, M. Kudoh, Y. Miyamoto, "Micro-Arc Nitriding of Titanium Surface", Materials Science Forum, Vols. 492-493, pp. 225-228, 2005
Online since
August 2005
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Price
$32.00
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