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Nanoindentation and atomic force microscopy of thin surface layers formed on the shaft surface after burnishing process

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EN
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EN
The article presents the experimental results of investigation of the pumps shaft surface made of stainless steel after burnishing process. The process of burnishing shafts proposed here aims at increasing the service durability of marine pump shafts of seawater installations, which should give economic benefits in comparison with traditional methods. Burnishing process enables the achievement of high smoothness of machined surface together with the surface layer hardening. This process has been performed in industrial experience on universal machine tools and on CNC machines but it is regarded as plastic tooling. Therefore, the final formation of dimensions and service properties with the use of burnishing constitutes a chipless and dustless treatment, which allows for ranking burnishing among ecological tooling methods. The properties of the surface layers determine the tribological properties of the shaft. The methods of scanning electron microscopy (SEM), atomic force microscopy (AFM) and nanoindentation (NI) were used. The morphology of the changed layers formed by plastic deforming of steel during burnishing treatment was investigated on micro- and nanolevel by SEM and AFM after 1, 2, 3 and 4 passed of burnishing tool. The values of microhardness and Young´s modulus were measured on the shaft cross section from the surface till the 50 – 300 μm depth. The presence of the soft changed layer on the hardened shaft surface after burnishing process determines the decrease of the coefficient of friction during exploitation.
Twórcy
  • Luikov Heat and Mass Transfer Institute of National Academy of Sciences of Belarus P. Brovki Street 15, 220072 Minsk, Belarus tel.: +375 172841060, fax: +375 172922513
autor
  • Luikov Heat and Mass Transfer Institute of National Academy of Sciences of Belarus P. Brovki Street 15, 220072 Minsk, Belarus tel.: +375 172841060, fax: +375 172922513
autor
  • Luikov Heat and Mass Transfer Institute of National Academy of Sciences of Belarus P. Brovki Street 15, 220072 Minsk, Belarus tel.: +375 172841060, fax: +375 172922513
autor
  • Gdynia Maritime University, Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 586901348, fax: +48 586901399
autor
  • Gdynia Maritime University, Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: +48 586901348, fax: +48 586901399
Bibliografia
  • [1] Ahmed, R., Sutcliffe, M. P. F., Indentation of surface features on cold-rolled stainless steel strip, Wear, Vol. 244, pp. 60-70, 2000.
  • [2] Atomic Force Microscopy in Adhesion Studies, (ed.) J. Drelich, et. al, Boston: Brill Academic Pub, pp. 822, 2005.
  • [3] Balland, P., Tabourot, L., Degre, F., Moreau, V., Mechanics of the burnishing process, Precision Engineering, Vol. 37, pp. 129-134, 2013.
  • [4] Chomiene, V., Valiorgue, F., Rech, J., Verdu, C., Influence of ball burnishing on residual stress profile of a 15-5PH stainless steel, CIRP Journal of Manufacturing Science and Technology, Vol. 13, pp. 90-96, 2016.
  • [5] Grigorovich, V. K., Hardness and Microhardness of Metals, (in Russian), Nauka, Moscow 1976.
  • [6] Hua, W., Man, B., Liu, B., Contact force studies of a burnishing slider, Tribology International, 41, pp. 60-66, 2008.
  • [7] Kulkarni, A., Bhushan, B., Nanoscale mechanical property measurement using modified atomic force microscopy, Thin Solid Films, Vol. 290-291, pp. 206-210, 1996.
  • [8] Labuda, W., Charchalis, A., The analysis of finishing tooling influence on corrosion properties of stainless steel, Solid State Phenomena, Vol. 220-221, pp. 221-226, Switzerland 2015.
  • [9] Labuda, W., Charchalis, A., The analysis of finishing tooling influence on contact fatigue researched by profilometer, Solid State Phenomena, Vol. 199, pp. 117-122, Switzerland 2013.
  • [10] Labuda, W., Charchalis, A., The influence of finish tooling on friction properties of steel applied to sea water pump shafts, Journal of KONES Powertrain and Transport, Vol. 21, No. 2, pp. 185-192, 2014.
  • [11] Pharr, G., Measurement of mechanical properties by ultra-low load indentation, Materials Science and Engineering: A, Vol. 253, Is. 1-2, pp. 151-159, 1998.
Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-a058efed-3d6b-4160-89f9-c54a9b97c1be
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