Northampton Electronic Collection of Theses and Research

Use of optical profilometry in the ASTM D4172 standard

Torres Pérez, A., Hernández Battez, A., García-Atance, G., Viesca, J. L., González, R. and Hadfield, M. (2011) Use of optical profilometry in the ASTM D4172 standard. Wear. 271(11-12), pp. 2963-2967. 0043-1648.

Item Type: Article
Abstract: Among the wear quantification techniques applied to point contacts, the most typical one consists of measuring the longitudinal and transversal wear scar diameters of the worn surface. However, this method does not provide information about the distribution of the wear along the worn surfaces. As a result, the wear prediction using wear scar diameters could be misrepresentative because of the irregular shape of the worn surfaces. This drawback should be considered especially when the scope of the test method is the determination of the relative wear preventive properties of lubricants in sliding contacts. This paper compares two hydraulic lubricants from different manufacturers using a four-ball tribometer under the ASTM D4172 standard. Wear was measured by the wear scar diameter and wear volume with an optical 3D profilometer. Experimental results reveal that the wear volume measurement is a more sensitive method than the wear scar diameter one. Even more, the use of the wear scar diameter could lead to contradictions when performing a comparison of very similar results. For this reason, this paper suggests the use of the wear volume measurement in the standard.
Uncontrolled Keywords: Tribotesting, optical profilometry, ASTM D4172, wear scar diameter
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction. Mechanics of materials > TA418.4 Mechanical wear
T Technology > TA Engineering (General). Civil engineering (General) > TA1501 Applied optics. Photonics
T Technology > TJ Mechanical engineering and machinery > TJ1075 Tribology
Creators: Torres Pérez, Angel, Hernández Battez, A, García-Atance, G, Viesca, J L, González, R and Hadfield, M
Publisher: Elsevier
Faculties, Divisions and Institutes: University Faculties, Divisions and Research Centres - OLD > School of Science and Technology (2010-2016)
Faculties > Faculty of Arts, Science & Technology > Engineering
Date: 2 September 2011
Date Type: Publication
Page Range: pp. 2963-2967
Journal or Publication Title: Wear
Volume: 271
Number: 11-12
Language: English
ISSN: 0043-1648
Status: Published / Disseminated
Refereed: Yes

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