Paper Title:
Research on Microstructure and Oxidation Resistance of Double Glow Plasma Discharge Surface Titanizing on CrZrCu Alloy
  Abstract

CrZrCu is extensively used as high electrical, thermal and mechanical performance in spot welding. But when CrZrCu electrode is used in spot welding of galvanized steel sheet, the abrasion, corrosion and oxidation shorten the electrode life rapidly. The electrode is not able to meet the needs of spot welding of galvanized steel sheet .In the paper, double glow plasma discharge surface titanizing was carried out on CrZrCu alloy. The processes of double glow plasma discharge titanizing, surface alloying layer structure were also analyzed elementary. The properties of high temperature oxidation were also researched. The experimental results indicated that in the plasma titanizing alloying layer, the diffusion of titanium element toward the interior of the CrZrCu alloy substrate forms the intermetallic compound named Cu4Ti, which is beneficial to the reinforcement of CrZrCu substrate. The experimental results confirmed that double glow plasma discharge titanizing could greatly improve the high temperature oxidation resistance of CrZrCu alloy. Under the temperature of 450oC and 700oC, the oxidation rate of CrZrCu is about five times of plasma titanzing sample.

  Info
Periodical
Advanced Materials Research (Volumes 152-153)
Edited by
Zhengyi Jiang, Jingtao Han and Xianghua Liu
Pages
1079-1082
DOI
10.4028/www.scientific.net/AMR.152-153.1079
Citation
F. Tu, B. L. He, "Research on Microstructure and Oxidation Resistance of Double Glow Plasma Discharge Surface Titanizing on CrZrCu Alloy", Advanced Materials Research, Vols. 152-153, pp. 1079-1082, 2011
Online since
October 2010
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Price
$32.00
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