Research on Fracture Behavior of a Cr Coating/Original Steel Substrate Material under Thermal Fatigue Loading

Abstract:

The facture behavior of a chromium (Cr) coating/ original steel substrate material was investigated in this work. The results presented in this work show the crack density of the Cr coating on the substrate increases with the increase of the thermal fatigue times, and the failure process and modes of the Cr coating /original steel substrate system can be described as follows: Firstly, the micro-cracks of the coating grew and interconnected as the thermal fatigue time increased. Secondly, the pocket cracking at the coating and the substrate interface occurred, and the main cracks of the coating formed. Finally, the spallation or (and) collapse of the coating occurred.

• Periodical: Applied Mechanics and Materials (Volume 470)
• Pages: 146-149
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.470.146
• Online since: December 2013
• Authors: Ban Quan Yang*, Guang Nan Chen, Jun Du, Xue Jun Chen, Wei Hai Sun, Hong Qian Chen, Jing Wen Pan, Ying Chen
• Keywords: Cr Coating/Original Steel Substrate System, Crack Density, Thermal Fatigue Loading

References

[1] K.M. Yin and C.M. Wang: Surf. Coat. Technol. Vol. 114(1999), p.218.

[2] J. Simão ang D.K. Aspinwall: J. Mater. Process. Technol. Vol. 92-93(1999), p.218.

[3] L. Fedrizzi, S. Rossi , F. Bellei and F. Deflorian: Wear, Vol. 253 (2002), p.1173.

DOI: 10.1016/s0043-1648(02)00254-5

[4] B. Lawton: Wear, Vol. 251(2001), p.827.

[5] S. Sopok, C. Richard and S. Dunn: Wear, Vol. 258 (2005), p.659.

[6] B.Q. Yang, K. Zhang, G.N. Chen, G.X. Luo and J.H. Xiao: Surf. Eng. Vol. 24(2008), p.332.

[7] D.C. Agrawal and R. Raj: Acta. Metall. Vol. 37(1989), p.1265.