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1 Archives of Materials Science and Engineering

1 2010

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The analysis of the electrode potential shift in the examination of plastic-covered metal fatigue strength

Jamroziak K., Jargulinski W.

Archives of Materials Science and Engineering

2010

Vol. 41, nr 1

21-27

Purpose: A development of methodology of adhesive force measuring, and at the same time an estimation of its value change in the specifically designated group of materials that are used in technical objects' construction, requires defining the fatigue strength value changes. The one of the elements influencing adhesive force is electrode potential estimation in the relation to the function of adhesive force considering variable layers of the coatings. Design/methodology/approach: This paper describes an issue of electrode potential shift influence on metals' fatigue strength. The issue was presented based on the literature and conducted tests. Findings: The results of the examinations concern electrode potential shift influence on adhesion forces' increase in the materials covered with various coatings in relation to a defined coating thickness. Research limitations/implications: After earlier made tests, when it was forecast that electrode potential influences an increase in fatigue strength. It was formulated for verification of the assumed hypothesis. The tests were conducted on samples of selected metals coated with various configurations of layers. The methodology was limited to the measurement of the research results with a single kind of demonstration (standard) electrode. Practical implications: The results of the tests, in shape of charts representing the shift of electrode potential in relation to time, will allow the authors to resolve next research problem to describe a mechanism of hydrogen absorption by a metal base. This will allow to develop methodology of moist (damp) angle measure. The angle influences adhesion force that is responsible for an increase in fatigue strength. Originality/value: The value of attained results will help to develop general assumptions for methodology of moist (damp) angle measure.