Thermal Damage, Cracking and Rapid Erosion of Cannon Bore Coatings

[+] Author and Article Information
John H. Underwood

US Army Armament Research, Development & Engineering Center, Benet Laboratories, Technology Division, Watervliet, NY 12189 USAe-mail: junder@pica.army.mil

Anthony P. Parker

Royal Military College of Science, Cranfield University, Swindon, SN6 8LA, UK

Gregory N. Vigilante, Paul J. Cote

Benet Laboratories, Technology Division, Watervliet, NY, 12189, USA

J. Pressure Vessel Technol 125(3), 299-304 (Aug 01, 2003) (6 pages) doi:10.1115/1.1593077 History: Received May 12, 2003; Revised May 12, 2003; Online August 01, 2003
Copyright © 2003 by ASME
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Underwood,  J. H., Parker,  A. P., Cote,  P. J., and Sopok,  S., 1999, “Compressive Thermal Yielding Leading to Hydrogen Cracking in a Fired Cannon,” ASME J. Pressure Vessel Technol., 121, pp. 116–120.
Underwood, J. H., Vigilante, G. N., and Troiano, E., 2002, “Failure Beneath Cannon Thermal Barrier Coatings by Hydrogen Cracking; Mechanisms and Modeling,” Fatigue and Fracture Mechanics: 33rd Volume, ASTM STP 1417, W. G. Reuter and R. S. Piascik, Eds., American Society for Testing and Materials, West Conshohocken, PA, pp. 101–115.
Evans,  A. G., and Hutchinson,  J. W., 1995, “The Thermomechanical Integrity of Thin Films and Multilayers,” Acta Metall. Mater., 43, pp. 2507–2530.
Cote, P. J., Kendall, G., and Todaro, M. E., 2002, “Laser Pulse Heating of Gun Bore Coatings,” Surface and Coatings Technology (in press).
Underwood, J. H., and Parker, A. P., 1999, “Thermal Damage and Shear Failure of Chromium Plated Coating on an A723 Steel Cannon Tube,” Advances in Life Prediction Methodology, PVP-391, R. Mohan, Ed., ASME, New York.
Sopok, S., O’Hara, P., Vottis, P., Pflegl, G., Rickard, C., and Loomis, R., 1997, “Erosion Modeling of the 120-MM M256/M829A2 Gun System,” Proceedings of 1997 ADPA Gun and Ammunition Symposium, San Diego, CA, 7–10 April 1997.
Massalski, T. B., Ed., 1990, Binary Alloy Phase Diagrams, Second Edition, ASM International, Materials Park, OH, p. 1777.
Truchon, M., 1982, “Application of Low-Cycle Fatigue Test Results to Crack Initiation From Notches,” Low-Cycle Fatigue and Life Prediction, ASTM STP 770, ASTM, pp. 254–268.


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Cannon firing damage in 120 mm tube #12; 0.7 m location, longitudinal section
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Interior ballistics model calculation of gas temperature; 120 mm cannon, 0.7 m location
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Cyclic shear failure of coating interface at an open crack site
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Evans/Hutchinson interface slip zone adapted for tensile failure of cannon coatings
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Thermo-mechanical model results for laser heated tantalum on A723 steel
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Thermo-mechanical model results for laser-heated chromium on A723 steel
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Laser-pulse-heating of sputtered tantalum on A723 steel
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Laser-pulse-heating of sputtered chromium on A723 steel
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Thermo-mechanical model results for fired cannon #12; 0.7 m location



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