Characterisation of pit geometry in cold-rolled stainless steel strip

Sutcliffe, M. P.F. and Georgiades, F. (2002) Characterisation of pit geometry in cold-rolled stainless steel strip. Wear, 253 (9-10). pp. 963-974. ISSN 0043-1648

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Item Type:Article
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Three-dimensional profilometry measurements of the surface roughness on industrially cold-rolled stainless steel samples are used to identify individual pits on the samples. The changes in key pit geometry parameters are extracted from these measurements. As the pits are gradually eliminated through the pass schedule, the ‘characteristic’ pit diameter, spacing and depth fall sharply, while the pit slope rises, from a value of about 15◦ up to 50◦. The contribution of various pit sizes to the pit area is explored. A regime map is constructed for the measured pit sample statistics to indicate the effects of lubricant entrainment at the inlet to the bite or micro-plastic hydrodynamic lubrication of the pits inside the bite.

Keywords:Pit geometry, Cold-rolled stainless steel, Micro-plasto-hydrodynamic lubrication, Georgiadis
Subjects:H Engineering > H390 Mechanical Engineering not elsewhere classified
H Engineering > H140 Mechanics
Divisions:College of Science > School of Engineering
ID Code:9479
Deposited On:16 May 2013 19:28

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