Investigation of stress-strained state of complex parts after plasma surface hardening

Authors

DOI:

https://doi.org/10.15587/2312-8372.2015.44374

Keywords:

plasma treatment, stress, strain, structure, phase composition, simulation, element, properties, exploitation

Abstract

The structure and properties of 35CML steel after plasma hardening was investigated, the mechanisms of influence upon formation of phase composition and residual stresses after surface treatment were revealed. It was found out that that residual micro-stresses at surface treatment of steel represented an algebraic sum of strain of two kinds – thermal strain, caused by uneven distribution of temperature along the part’s cross-section and structural strains, due to changes in volume resulting from phase transitions.

Residual stresses in the surface layer were determined experimentally. Distribution of deformations in the specified part was simulated by applying of a source of highly concentrated energy. Recommendations were offered for the choice of the modes of plasma treatment.

A part, made of the specified steel was hardened with application of designated modes and its geometric shape was controlled. Plasma surface treatment proved to be a promising method of increasing durability of engineering parts.

Author Biography

Владислав Александрович Мазур, Pryazovskyi State Technical University, str. 7 University, Mariupol, Ukraine, 87500

Candidate of Technical Sciences, Associate Professor

Department of Metal-cutting machines and tools

References

  1. Samotugin, S. S., Leszczynski, L. K. (2002). Plasma hardening tool materials. Donetsk: New World, 338.
  2. Radhakrishnan, V. M., Prasad, C. R. (1976, January). Relaxation of residual stress with fatigue loading. Engineering Fracture Mechanics, Vol. 8, № 4, 593–597. doi:10.1016/0013-7944(76)90033-3
  3. Barvinok, V. A. (1990). Voltage control status and properties of plasma coatings. M.: Engineering, 384.
  4. Dong, P. (2001). Residual Stress Analyses of a Multi-Pass Girth Weld: 3-D Special Shell Versus Axisymmetric Models. Journal of Pressure Vessel Technology, Vol. 123, № 2, 207–213. doi:10.1115/1.1359527
  5. Solina, A., de Sanctis, M., Paganini, L., Coppa, P. (1986, June). Residual stresses induced by localized laser hardening treatments on steels and cast iron. Journal of Heat Treating, Vol. 4, № 3, 272–280. doi:10.1007/bf02833305
  6. Leshchinsky, L. K., Samotugin, S. S. (2001). Mechanical properties of plasma-hardened 5%-chromium tool steel deposited by arc welding. Welding Journal, 1, 25–30.
  7. Samotugin, S. S., Mazyr, V. А. (2006). Residuai stress in the tool steels after surface flashing plasma hardening. Welding development, 8, 20-26.
  8. Barroso, A., Cañas, J., Picón, R., París, F., Méndez, C., Unanue, I. (2010, March). Prediction of welding residual stresses and displacements by simplified models. Experimental validation. Materials & Design, Vol. 31, № 3, 1338–1349. doi:10.1016/j.matdes.2009.09.006
  9. Withers, P. J., Bhadeshia, H. K. D. H. (2001, April). Residual stress. Part 2 – Nature and origins. Materials Science and Technology, Vol. 17, № 4, 366–375. doi:10.1179/026708301101510087
  10. Heinze, C., Schwenk, C., Rethmeier, M. (2012, May). Numerical calculation of residual stress development of multi-pass gas metal arc welding. Journal of Constructional Steel Research, Vol. 72, 12–19. doi:10.1016/j.jcsr.2011.08.011

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Published

2015-05-28

How to Cite

Мазур, В. А. (2015). Investigation of stress-strained state of complex parts after plasma surface hardening. Technology Audit and Production Reserves, 3(1(23), 47–50. https://doi.org/10.15587/2312-8372.2015.44374

Issue

Vol. 3 No. 1(23) (2015): Energy, energy-saving technologies and equipment. Electrical engineering and industrial electronics

Section

Mechanical engineering and machine building

License

Copyright (c) 2016 Владислав Александрович Мазур

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