Microstructure and Tribological Properties of Sub-Microcrystalline Carbon Steel Produced by Severe Plastic Deformation

Abstract:

Article Preview

The microstructure, hardness, and sliding wear properties of high-pressure torsion (HPT)-processed pure Fe and S45C carbon steel were comprehensively investigated. The grains of Fe and S45C were significantly refined to the submicron size range using the HPT process, and the grain sizes were found to decrease with an increased number of turns (N). The Vickers hardness of HPT-processed specimens increased with increasing N or with distance from the center (i.e., with an increase in the strain), which is attributed to grain refinement. In addition, the hardness of HPT-processed Fe was saturated with a further increase in the number of turns owing to the saturation of grain refinement. However, saturation with hardening was not observed in the case of S45C and the hardness values of S45C were much higher than those of Fe. The wear amount was considerably reduced by HPT processing for both Fe and S45C. A linear correlation was determined between the specific wear rate and the inverse of hardness, which agrees with the Archard wear equation. The experimental results show that the reduction in the wear of Fe and S45C is considered to be due to hardening by the HPT process.

Info:

Periodical:

Edited by:

Prof. Dongyan Shi

Pages:

3-8

Citation:

H. Kato et al., "Microstructure and Tribological Properties of Sub-Microcrystalline Carbon Steel Produced by Severe Plastic Deformation", Applied Mechanics and Materials, Vol. 876, pp. 3-8, 2018

Online since:

February 2018

Export:

Price:

$38.00

* - Corresponding Author

[1] R. Z. Valiev, R. K. Islamgaliev, I. V. Alexandrov, Bulk nanostructured materials from severe plastic deformation, Prog. Mater. Sci. 45 (2000) 103-189.

DOI: https://doi.org/10.1016/s0079-6425(99)00007-9

[2] Y. H. Zhao, Z. Horita, T. G. Langdon, Y. T. Zhu, Evolution of defect structures during cold rolling of ultrafine-grained Cu and Cu–Zn alloys: Influence of stacking fault energy, Mater. Sci. Eng. A 474 (2008), 342-347.

DOI: https://doi.org/10.1016/j.msea.2007.06.014

[3] P. Bazarnik, Y. Huang, M. Lewandowska, T. G. Langdom, Structural impact on the Hall–Petch relationship in an Al–5Mg alloy processed by high-pressure torsion, Mater. Sci. Eng. A Vol. 626 (2015) 9-15.

DOI: https://doi.org/10.1016/j.msea.2014.12.027

[4] Y. Estrin, A. Vinogradov, Extreme grain refinement by severe plastic deformation: A wealth of challenging science, Acta Mater. 61 (2013) 782-817.

DOI: https://doi.org/10.1016/j.actamat.2012.10.038

[5] A. P. Zhilyaev, T. G. Langdon, Using high-pressure torsion for metal processing: Fundamentals and applications, Prog. Mater. Sci. 53 (2008) 893-979.

DOI: https://doi.org/10.1016/j.pmatsci.2008.03.002

[6] M. Kawasaki, R. B. Figueiredo, T. G. Langdon, An investigation of hardness homogeneity throughout disks processed by high-pressure torsion, Acta Mater. 59 (2011) 308-316.

DOI: https://doi.org/10.1016/j.actamat.2010.09.034

[7] N. Gao, C. T. Wang, R. J. K. Wood, T. G. Langdon, Tribological properties of ultrafine-grained materials processed by severe plastic deformation, J. Mater. Sci. 47 (2012) 4779-4797.

DOI: https://doi.org/10.1007/s10853-011-6231-z

[8] J. Li, J. Wongsa-Ngam, J. Xu, D. Shan, B. Guo, T. G. Langdon, Wear resistance of an ultrafine-grained Cu-Zr alloy processed by equal-channel angular pressing, Wear 326–327 (2015) 10-19.

DOI: https://doi.org/10.1016/j.wear.2014.12.022

[9] E. Avcu, The influences of ECAP on the dry sliding wear behaviour of AA7075 aluminium alloy, Tribol. Int. 110 (2017) 173-184.

DOI: https://doi.org/10.1016/j.triboint.2017.02.023

[10] H. Kato, Y. Todaka, M. Minoru, M. Haga, E. Sentoku, Sliding wear behavior of sub-microcrystalline pure iron produced by high-pressure torsion straining, Wear 336-337 (2015) 58-68.

DOI: https://doi.org/10.1016/j.wear.2015.04.014

[11] Y. Todaka, M. Yoshii, M. Umemoto, C. Wang, K. Tsuchiya, Tensile property of submicrocrystalline pure Fe produced by HPT-straining, Mater. Sci. Forum 584-586 (2008) 597-602.

DOI: https://doi.org/10.4028/www.scientific.net/msf.584-586.597

[12] Y. Mine, Z. Horita, Y. Murakami, Effect of high-pressure torsion on hydrogen trapping in Fe–0. 01 mass% C and type 310S austenitic stainless steel, Acta Mater. 58 (2010) 649-657.

DOI: https://doi.org/10.1016/j.actamat.2009.09.043

[13] T. Nagoshi, A. Shibata, Y. Todaka, T. Sato, M. Sone, Mechanical behavior of a microsized pillar fabricated from ultrafine-grained ferrite evaluated by a microcompression test, Acta Mater. 73 (2014) 12-18.

DOI: https://doi.org/10.1016/j.actamat.2014.03.048

[14] K. Edalati, T. Fujioka, Z. Horita, Evolution of mechanical properties and microstructures with equivalent strain in pure Fe processed by high pressure torsion, Mater. Trans. 50 (2009) 44-50.

DOI: https://doi.org/10.2320/matertrans.md200812

[15] J. F. Archard, Contact and rubbing of flat surfaces, J. Appl. Phys. 24 (1953) 981-988.

Fetching data from Crossref.
This may take some time to load.