Paper Title:
Measurement of Delamination Strength of Thermal Barrier Coating at High Temperature by Edge-Indent Test
  Abstract

Thermal barrier coating (TBC) was carried out on Ni based super-alloy specimens, and edge indent tests were carried out at 1073K under different displacement rate. In addition, the specimens were heated and held at 1273K for long time, and the edge-indent tests of the specimens were performed both at 1273K and at room temperature. The results showed that the delamination load Pd and the delamination energy Ed measured at 1073K after short time holding were larger than those measured at room temperature, and the Pd and Ed slightly decreased with increasing displacement rate at 1073K while they slightly increased at 293K. The Pd and Ed at 1273K increased with increasing holding time and reached a maximum at 1400ks. With further increase in holding time, the Pd and Ed largely decreased. The Pd and Ed measured at 1273K were smaller than those at room temperature.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
1290-1293
DOI
10.4028/www.scientific.net/KEM.353-358.1290
Citation
K. Nakasa, M. Kato, B. Zhang, N. Akitake, "Measurement of Delamination Strength of Thermal Barrier Coating at High Temperature by Edge-Indent Test", Key Engineering Materials, Vols. 353-358, pp. 1290-1293, 2007
Online since
September 2007
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$32.00
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