Wear Studies of Materials for Tubes and Antivibration Bars in Nuclear Steam Generators

Wear occurs as a result of relative motion at the interface of two contacting bodies. In nuclear power steam generators, high flow rates can induce vibration of the tubes resulting in wear damage due to impact and sliding contacts between the tubes and their supports. A research project aiming to ga...

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Bibliographic Details
Published in:Journal of pressure vessel technology 1996-08, Vol.118 (3), p.287-300
Main Authors: Ko, P. L, Taponat, M.-C, Zbinden, M
Format: Article
Language:English
Subjects:
Applied sciences
Deformation
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Friction
Installations for energy generation and conversion: thermal and electrical energy
Loading
Mathematical models
Steam generators
Tubes (components)
Vibrations (mechanical)
Wear resistance
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Summary:Wear occurs as a result of relative motion at the interface of two contacting bodies. In nuclear power steam generators, high flow rates can induce vibration of the tubes resulting in wear damage due to impact and sliding contacts between the tubes and their supports. A research project aiming to gain better understanding of the mechanisms and mechanics involved in vibratory wear and to develop a more versatile predictive wear model was carried out. Combinations of Inconel tubes against flat antivibration bars of 403 SS and electrolytic-chrome plated Inconel 600 were tested under conditions of reciprocating sliding and impacting in water at room temperature and at 250°C. The results show that, depending on the material combinations and he loading conditions, distinctively different wear mechanisms and often drastically different wear rates can occur.
ISSN:0094-9930
1528-8978
DOI:10.1115/1.2842191