Paper Title:
Electrochemical Corrosion Behaviors of Ti2AlNb with Double Glow Plasma Surface Chromized
  Abstract

Ti2AlNb orthorhombic alloy is a promising high temperature structural material for aero-industries due to its advantageous properties. However, insufficient wear-resistance is a major drawback that has restricted the actual uses of this alloy in many circumstances. A treatment of double glow plasma surface chromizing on Ti2AlNb alloy has been carried out as an attempt to resolve this problem. This paper mainly investigated the electrochemical corrosion behaviors of this alloy after chromizing. The microstructure of the chromized layer was analyzed by X-ray diffraction (XRD). The sectional morphology of chromized layer was surveyed through scanning electronic microscopy (SEM).The polarization curves of specimens in three corrosive media, 5% H2SO4, 5% HCl and 3.5% NaCl, were measured. The eroded surface morphologies were also surveyed by SEM. The results indicate that surface chromizing treatment slightly decrease the alloy’s corrosion resistance, but still exhibit good performance.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
1753-1758
DOI
10.4028/www.scientific.net/MSF.546-549.1753
Citation
W. P. Liang, Z. Xu, Q. Miao, X. P. Liu, Z. Y. He, "Electrochemical Corrosion Behaviors of Ti2AlNb with Double Glow Plasma Surface Chromized", Materials Science Forum, Vols. 546-549, pp. 1753-1758, 2007
Online since
May 2007
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Price
$32.00
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