DESIGNING OF ADVANCED AND ORIGINAL AUSTEMPERING PROCESSES BASED ON THERMAL SCIENCE AND ENGINEERING PHYSICS APPROACHES

  • Nikolai Kobasko Intensive Technologies Ltd, Ukraine
Keywords: film boiling, nucleate boiling, duration, distortion, austempering, pressure, ductility, strength, service life

Abstract

In the paper, a small concentration of inverse solubility polymers in water and other liquid media is recommended to eliminate film boiling by means of reducing initial heat flux density. Quenching steel parts and tools in a small concentration of water solutions under pressure allows performing austempering process just using cold liquids. Its essence consists in coinciding martensite start temperature MS with the average temperature of self-regulated thermal process during nucleate boiling mode and further immediate transferring steel parts for tempering at the temperature which exceeds value MS. The new technology increases the service life of austempered workpieces by more than two times, saves alloy elements, is suitable for larger metallic components, improves environmental conditions, since instead of melted salts and alkali, plain water and water salt solutions can be used. The new austempering process can be used in forging shops to obtain super-strengthened materials in order to switch from alloy steel to plain carbon steels. And it can be also widely used for obtaining nano - bainitic structure in plain carbon steels resulting in saving alloy elements and improving mechanical characteristics of materials.

Downloads

Download data is not yet available.

References

Kondratjev, G. M. (1954). Regulyarnyi Teplovoy Rezhim (Regular Thermal Mode), Gostekhizdat, Moscow.

Kondratjev, G. M. (1957). Teplovye Izmereniya (Thermal measurements), Mashgiz, Moscow.

Kobasko, N. I. (2012). Real and Effective Heat Transfer Coefficients (HTCs) Used for Computer Simulation of Transient Nucleate Boiling Processes During Quenching. Materials Performance and Characterization, Vol. 1, Issue 1, 1–20. doi: 10.1520/mpc-2012-0012

Tolubinsky, V. I. (1980). Heat Transfer at Boiling, Naukova Dumka, Kyiv, 315.

Kutateladze, S. S. (1952). Heat Transfer at Condensation and Boiling, Mashgiz, Moscow.

Kobasko, N. I. (1980). Steel Quenching in Liquid Media Under Pressure. Naukova Dumka, Kiev, 206.

Kobasko, N. I., Aronov, M. A., Powell, J. A., Totten, G. E. (2010). Intensive Quenching Systems: Engineering and Design. ASTM International, West Conshohocken, USA, 234. doi: 10.1520/mnl64-eb

Kobasko, N. I. (2005). Self-regulated Thermal Processes During Quenching of Steels in Liquid Media. International Journal of Microstructure and Materials Properties, Vol. 1, Issue 1, 110–125. doi: 10.1504/ijmmp.2005.008135

Kobasko, N. I. (1998). Self-Regulated Thermal Process at Steel Quenching. Promyshlennaya Teplotekhnika, Vol. 20, Issue 5, 10–14.

Kobasko, N. I. (2009). Transient Nucleate Boiling as a Law of Nature and a Basis for Designing of IQ Technologies. Proc. of the 7th IASME/WSEAS International Conference on Heat Transfer, Thermal Engineering and Environment (HTE'09), Moscow, Aug. 20–22, 67–76.

Kobasko, N. I. (2012). Discovered Characteristics of the Transient Nucleate Boiling Process to Be Widely Used for Testing Materials and New Technologies Development. In a Book "Resent Advances in Fluid Mechanics & Mass Transfer and Biology", WSEAS Press, Harvard, Cambridge, 15–22.

Kobasko, N. I. (2014). Phenomena Discovered During Immersion of Steel Parts Into Liquid Quenchants. IMEPEG, Vol. 23, Issue 12, 4211–4215. doi: 10.1007/s11665-014-1223-1

Kobasko, N. I., Prabhu, N. Dean, S. W. (2011). Duration of the Transient Nucleate Boiling Process and Its Use for the Development of New Technologies. Journal of ASTM International, Vol. 8, Issue 7, 103485. doi: 10.1520/jai103485

Kobasko, N. I. (1992). Intensive Steel Quenching Methods. Theory and Technology of Quenching. B. Liscic, H. M. Tensi, and W. Luty, Eds., Springer-Verlag, Berlin, New York, Tokyo, 367–389.

Kobasko, N. I. (2015). Isothermal Method for Hardening of High Carbon Steels and Irons. UA Patent No. 109935, registered on Oct. 26.

Aronov, M. A., Kobasko, N. I., Powell, J., Andreski, B., O'Rourke, B. (2014). Intensive Quenching Processes: Basic Principles and Commercialization. Proc. of the European Conference on Heat Treatment and 21st IFHTSE Congress, Munich, Germany, May, 12th - 15th, 267–274.

Kobasko, N. I. (2013). Tribological Properties of Intensively Quenched Materials. Encyclopedia of Tribology, Q. Jane Wang, Yip- Wah Chung, Eds., Springer US, 3811–3816. doi: 10.1007/978-0-387-92897-5_1023.

Kobasko, N. I. (1992). Intensive Steel Quenching Methods. Theory and Technology of Quenching, B. Liscic, H. M. Tensi, and W. Luty, Eds., Springer-Verlag, Berlin, New York, Tokyo, 367–389.

Kobasko, N. (2014). An Overview on IQ-2 Processes. Their Present and Future. In a Book "Recent Advances in Intelligent Control, Modeling and Simulation", Hitoshi Kijima, Ed., WSEAS Press, Cambridge, MA, 46–56.

Kobasko, N. I., Aronov, M. A., Powell, J. A., Ferguson, B. L. (2014). Verification of Presence of Direct Convection Mode of Heat Transfer During Intensive Quenching in High Velocity IQ System. "Recent Advances in Intelligent Control, Modeling and Simulation", Hitoshi Kijima, Ed., WSEAS Press, Cambridge, MA, 165–170.

Aronov, M. A., Kobasko, N. I., Powell, J. A., Kim, H., O’Rourke, B., Andreski, B. (2015). Application of intensive quenching process for steel mill rolls made of ductile iron. Materials Science and Technology (MS&T) Conference, Greater Columbus Convention Center, Columbus, Ohio, USA.

Kobasko, N. I., Aronov, M. A., Ichitani Katsumi, Hasegawa Mayu, Noguchi Kenro. (2012). High Compressive Residual Stresses in Through Hardened Steel Parts as a Function of Biot Number. In a Book "Recent Advances in Fluid Mechanics, Heat and Mass Transfer and Biology", Manoj K. Jha, Myriam Lazard, Azami Zaharim, K. Sopian, Eds., WSEAS Press, Cambridge, MA, USA, 35–40.

Kobasko, N. I., Guseynov, Sh. E. (2008). Initial Heat Flux Densities and Duration of Non-stationary Nucleate Boiling During Quenching. Proceedings of the 5th WSEAS International Conference on Heat and Mass Transfer (HMT ‘08), Acapulco, Mexico, 104–109.

Bobinska, T., Buike, M., Buikis, A. (2010). Hyperbolic heat equation as mathematical model of steel quenching of L- shape samples. Proc. of the 5th IASME/WSEAS Int. Conf. on Continuum Mechanics, Fluids, Heat, Cambridge, UK, WSEAS Press, 21–26.

Guseynov, Sh. E., Buikis, A., Kobasko, N. I. (2006). Mathematical statement of a problem with the hyperbolic heat transfer equation for the intensive steel quenching processes and its analytical solution. Proceedings of the Seventh International Conference “Equipment and Technologies for Heat Treatment of Metals and Alloys” (OTTOM-7), Vol. 2, Kharkov, Ukraine, 22–27.

Guseynov, Sh. E., Kobasko, N. I. (2008). On One Nonlinear Mathematical Model for Intensive Steel Quenching and its Analytical Solution in Closed Form. The 5th WSEAS Int. Conf. on Heat and Mass transfer (HMT'08), Acapulco, Mexico.

Buikis, A. (2009). Some new models and their solutions for intensive steel quenching. Abstracts of MMA Daugavpils, Latvia, May 27 – 30.

Bhadeshia, H. K. D. H. (2015). Bainite in Steels: Theory and Practice (3rd edition), Money Publishing, 616.


👁 796
⬇ 307
Published
2016-04-06
How to Cite
Kobasko, N. (2016). DESIGNING OF ADVANCED AND ORIGINAL AUSTEMPERING PROCESSES BASED ON THERMAL SCIENCE AND ENGINEERING PHYSICS APPROACHES. EUREKA: Physics and Engineering, (2), 43-50. https://doi.org/10.21303/2461-4262.2016.00060
Section
Material Science

Most read articles by the same author(s)

1 2 > >>