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http://dx.doi.org/10.9725/kstle.2009.25.4.250

Oxidation and Fretting Wear Characteristics of Zirconium Alloy Tubes  

Chung, Il-Sup (School of Mechanical Engineering, Yeungnam University)
Lee, Ho-Seong (Materials Science and Metallurgical Engineering, Kyungpook University)
Lee, Myung-Ho (School of Mechanical Engineering, Yeungnam University)
Publication Information
Tribology and Lubricants / v.25, no.4, 2009 , pp. 250-255 More about this Journal
Abstract
Oxidation characteristics of Zirlo and Zircaloy-4 tubes, which are widely used as nuclear power fuel cladding, are studied in steam environment up to $1200^{\circ}C$. Oxidation resistances are compared in terms of the mass increase due to the absorption of oxygen. The evolution of microscopic structure accompanied with the oxidation process is investigated. Also, the influence of oxidation on the fretting wear characteristics of the tubes is studied. Piezo-electrically actuated rig is employed to fret the tubes with cross-contacting arrangement. Wear scar is observed and measured, by using microscopes and a 3D-profiler. The results of fretting wear are quantified in terms of scar size, wear volume and wear coefficient, and compared for the three different tube materials of oxidated Zirlo, virgin Zirlo and Zircaloy-4.
Keywords
fuel cladding tube; zircaloy; oxidation; oxide layer; fretting wear; wear coefficient;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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