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TECHNICAL PAPERS

Intensive Quenching Theory and Application for Imparting High Residual Surface Compressive Stresses in Pressure Vessel Components

[+] Author and Article Information
Andrew M. Freborg, B. Lynn Ferguson

Deformation Control Technology, Inc., Cleveland, OH 44130

Michael A. Aronov, Nikolai I. Kobasko, Joseph A. Powell

IQ Technologies, Inc., Akron, OH

J. Pressure Vessel Technol 125(2), 188-194 (May 05, 2003) (7 pages) doi:10.1115/1.1556858 History: Received August 22, 2002; Revised November 26, 2002; Online May 05, 2003
Copyright © 2003 by ASME
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References

Kobasko, N. I., and Prokhorenko, N. I., 1964, “Quenching Cooling Rate Effect on Crack Formation of 45 Steel,” Metallovedenie and Termicheskaya Obrabotka Metallov (in Russian), No. 2, pp. 53–54.
Kobasko, N. I., and Morganyuk, V. S., 1985, “Numerical Study of Phase Changes, Current and Residual Stresses in Quenching Parts of Complex Configuration,” Proc., 4th Int. Congress on Heat Treatment of Materials, Berlin, Germany, Vol. 1, pp. 465–486.
Kobasko, N. I., 1975, “Method of Overcoming Self-Deformation and Cracking During Quenching of Metal Parts,” Metallovedenie and Termicheskay Obrabotka Metallov (in Russian), No. 4, pp. 12–16.
Kobasko, N. I., 1992, Intensive Steel Quenching Methods. Theory and Technology of Quenching, Springer-Verlag, New York, NY, pp. 367–389.
“Predictive Model and Methodology for Heat Treatment Distortion,” Phase 1 Project Summary Report, National Center for Manufacturing Science report No. 0383RE97, September 30, 1997.
Mei, Daming, 1990, “Intensive Quenching Method for Preventing Quench Cracking,” Proc. 7th Int. Congress on Heat Treatment and Technology of Surface Coating, Moscow, Russia, Vol. 2, pp. 62–71.
Aronov, M. A., Kobasko, N. I., and Powell, J. A., 2000, “Practical Application of Intensive Quenching Process for Steel Parts,” Proc. Heat Treating Conference, St. Louis.
Aronov,  M. A., Kobasko,  N. I., Powell,  J. A., Wallace,  J. F., and Schwam,  D., 1999, “Practical Application of the Intensive Quenching Technology for Steel Parts,” Ind. Heat., Apr. pp. 59–63.
Kobasko, N. I., 1991, “Technical Aspects of Quenching” (in Russian), MiTOM, Apr. pp. 2–8.
Aronov M., 2001, “9260 Steel Automotive Spring,” IQ Technologies, Inc. Internal Report.
Kobasko, N. I., 2001, private communication, July.
Incropera, F. P., and DeWitt D. P., 1996. Introduction to Heat Transfer, 3rd Edition., John Wiley and Sons, New York.
Freborg, A. M., Ferguson, B. L., Aronov, M. A., and Kobasco, N. I., 2002,“Use of Computer Simulation in Optimizing an Intensive Quenching Process for a Keyway Shaft,” presented at 13th IFHTSE/ASM Congress, Columbus, OH.
Aronov, M. A., Kobasco, N. I., and Powell, J. A., 2002, “Review of Practical Application of Intensive Quenching Methods for Steel Parts,” Proc. 13th IFHTSE/ASM Congress, Columbus, OH.
Aronov, M. A., Kobasco, N. I., and Powell, J. A., 2002, “Intensive Quenching Technology of Tool Steel,” Proc. 13th IFHTSE/ASM Congress, Columbus, OH.

Figures

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Effect of cooling rate on probability of cracking
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Martensite formation during quenching—(a) Conventional, (b) Intensive
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Surface stress conditions during intensive quenching
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Surface stress condition during conventional quench
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Surface stress versus time
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Part structure concentric layers
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Finite element model mesh developed for pressure vessel heat treatment evaluation—(a) overview of axisymmetric mesh (b) close-up of closed end illustrating surface mesh refinement
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Time-temperature history for oil quenched pressure vessel section
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Profile of residual hoop stress in pressure vessel cross section after oil quench (units=MPa)
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Time history plot for hoop stress and phase volume fraction for surface and core areas within the pressure vessel during oil quenching
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Time-temperature history for intensively quenched pressure vessel section, illustrating extreme thermal gradient
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Time history plot for stress and phase volume fraction for surface and core areas within the pressure vessel during intensive quenching
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Contour plot of martensite phase volume fraction in the pressure vessel section at the end of intensive quenching
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Profile of residual hoop stress in pressure vessel cross section after intensive quench (units=MPa)
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Comparative stress profiles through the vessel section for both quench scenarios
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Comparative hardness profiles (predicted) for both quench scenarios

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