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Accelerated Fatigue Life Testing of Nicr-Cr3C2 Coating at Different Loads under Rolling Contact Condition

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Abstract:

The aim of this paper is to address the accelerated fatigue life under rolling contact condition of coatings. The NiCr-Cr3C2 ceramic-metal and Ni-Al alloy were deposited on steel substrate as topcoating and undercoating using supersonic plasma spraying technique, respectively. Accelerated fatigue life tests were conducted using a ball-on-disc tester. The life of coatings was evaluated by Weibull distribution plots and the accelerated fatigue life model was established. The results showed that the coupling relationship between the load and failure life of coatings could be obtained using this model. Accelerated life test for fatigue of coatings could improve the experimental efficiency.

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Advanced Manufacturing Technology, ICMSE 2012 View Preview

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Periodical:

Advanced Materials Research (Volumes 472-475)

Pages:

13-18

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.472-475.13

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Online since:

February 2012

Authors:

Shao Yun Wang, Guo Lu Li, Hai Dou Wang, Jin Hai Liu, Bin Shi Xu

Keywords:

Accelerated Fatigue Life, Bartlett's Hypothesis Testing, Plasma-Sprayed Coating, Weibull Plots

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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