期刊
COATINGS
卷 7, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/coatings7040048
关键词
electro-deposited coating; coating failure; fretting; statistical process control
资金
- National Research Foundation of Korea (NRF) grant - Korean government (MSIP) [2016R1C1B1008483]
- National Research Foundation of Korea [2016R1C1B1008483] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This paper describes statistical determination of fretting-induced failure of an electro-deposited coating. A fretting test is conducted using a ball-on-flat plate configuration. During a test, a frictional force is measured, along with the relative displacement between an AISI52100 ball and a coated flat specimen. Measured data are analyzed with statistical process control tools; a frictional force versus number of fretting cycles is plotted on a control chart. On the control chart, critical number of cycles to coating failure is statistically determined. Fretted surfaces are observed after interrupting a series of fretting tests. Worn surface images and wear profiles provide that the increase on the kinetic friction coefficient after a steady-state sliding is attributed to the substrate enlarged at a contact surface. There is a good agreement between observation of worn surfaces and statistical determination for fretting-induced coating failure.
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