Paper Title:
Characterisation of the Oxide/Metal Interface of Fluorine Treated Titanium Aluminides
  Abstract

Surface modifications with well defined amounts of fluorine have proven to improve significantly the oxidation resistance of titanium aluminides and to offer the potential to decrease the sensibility of TiAl-based alloys against environmental embrittlement. By means of combined EPMA and SEM analyses the formation of an oxide layer on fluorine treated specimens was characterised. The thicknesses of the external oxide layer as well as the oxygen and nitrogen-rich subsurface layer were measured. Their growth kinetics was found to follow a cubic and a parabolic law, respectively. By subtracting the mass variation due to the ingress of oxygen and nitrogen into 2-Ti3Al, underneath the alumina layer, this allowed calculating the true value of the kinetic constant for the growth of a pure alumina layer on titanium aluminides.

  Info
Periodical
Defect and Diffusion Forum (Volumes 289-292)
Edited by
A. Agüero, J.M. Albella, M.P. Hierro, J. Phillibert and F.J. Pérez Trujillo
Pages
397-404
DOI
10.4028/www.scientific.net/DDF.289-292.397
Citation
P. J. Masset, M. Laurent, M. Schütze, "Characterisation of the Oxide/Metal Interface of Fluorine Treated Titanium Aluminides", Defect and Diffusion Forum, Vols. 289-292, pp. 397-404, 2009
Online since
April 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: M.T. Marques, Jose Brito Correia, P. Matteazzi
244
Authors: Seong Min Choi, Uraiwan Leela-adisorn, Sawao Honda, Shinobu Hashimoto, Hideo Awaji
Abstract:Intra-type structure of ceramic matrix composites (CMCs) can improve the mechanical properties of ceramic materials. In this work, we used...
115
Authors: Jun Ho Song, Young Jin Jo, Hee Gon Bang, Sang Yeup Park
Abstract:Calcium-hexaluminate phase(CA6) phase is known to be effective for the crack shielding due to the spinel block crystal structure. In this...
485
Authors: Soon Mee Choi, Jiung Cho, Young Keun Kim, Cheol Jin Kim
Abstract:As-received multilayered Co/Cu nanowire arrays were examined by TEM, which were synthesized by pulsed DC electrodeposition using anodized...
1233
Authors: Vladislav Kolarik, Maria Juez-Lorenzo, M. Anchústegui, Harald Fietzek
Abstract:Spherical Al particles sized in the range of 2 to 5 μm were deposited with an organic binder by brushing on the austenitic steel X6 CrNi...
769