Evaluation for adhesion strength of coating and substrate by burying beforehand specimen

Abstract

Adhesion strength is an important target in evaluating the quality of coating layers. The traditional way of adhesion strength test is bonding pull-off method for thick layers and scratch test for thin films. The drawbacks of these two methods are discussed in this paper, and an evaluating method for adhesion strength of coating by burying beforehand specimen is proposed. The adhesion strength of samples is measured with two methods. The dispersity of testing data is lower than that in the ASTM-C663-79 Standard.

Keywords

coating / adhesion strength / specimen / measure

References

[1] Zheng Senlin, He Jiawen. Research and Development of Testing Method for Adhesion Strength of Coating Film/Substrate. Membrane Science and Technology, 1993, 6(2): 85-90.

[2] Richard P, Thomas J, Landolt D. Combination of Scrach Test and Acoustic Microscopy Imaging for the Study on Coating Adhesion. Surface and Coating Technology, 1997, 91: 82-90.

[3] Berriche Ridha, Koul Ashokk, Au Peter. Evaluation of Hard TiN Coatings by Depth Sensing Indentation and Scratch Testing Methods. Advanced Performance Materials, 1997, 4: 357-370.

[4] ASTM C633-79.Standard Test Method for Adhesion or Cohesive Strength of Flame-sprayed Coating.

[5] Rhyim Y M, Park C G. Mechanical Properties of WC-CO Coating by Detonation Gun Sparying.Proceedings of 14th ITSC, Japan, 1995, 773–778

[6] Zhu Qifang, . Evaluation for Adhesion Strengh of Hard Coatings by Wedged Load Test Method. PTC Part: Physical Testing, 2000, 11: 497-500.