Dry Sliding Wear Mechanisms of the High Nitrogen Austenitic 18Cr-18Mn-2Mo-0.9N Steel at Different Applied Loads

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Sliding wear mechanisms of the solution treated 18Cr-18Mn-2Mo-0.9N high nitrogen steel (HNS) were studied. Room-temperature dry sliding wear tests of the steel were carried out at various applied loads to explore the mechanism as a function of the load. The wear rate of the steel increased with the increase of the load; however, the increase rate was not constant. The rate increased slowly at low loads, rapidly at intermediate loads, and finally, the increase-rate became low again at high loads. Worn surfaces, their cross sections, and wear debris were examined, and phases of the heat-treated HNS as well as the wear debris were identified to find out the mechanism. The wear of the steel was found to be controlled by the tribo-oxidation, strain-induced phase transformation, and reverse transformation due to temperature rise on a wearing surface. The influence of each mechanism on the rate varied depending on the magnitude of the applied load.

Info:

Periodical:

Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

37-40

Citation:

Y. S. Kim et al., "Dry Sliding Wear Mechanisms of the High Nitrogen Austenitic 18Cr-18Mn-2Mo-0.9N Steel at Different Applied Loads", Advanced Materials Research, Vols. 26-28, pp. 37-40, 2007

Online since:

October 2007

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$38.00

[1] I. Woo, M. Aritoshi and Y. Kikuchi: ISIJ International Vol. 42 (2002), p.401.

[2] V. Seetharaman and R. Krishnan: J. Mater. Sci. Vol. 16 (1981), p.523.

[3] D. Goodchild, W. T. Roberts and D. V. Wilson: Acta Met. Vol. 18 (1970), p.107.

[4] Y. -S. Kim, S. -D. Kim and S. -J. Kim: Mat. Sci. Eng. A Vols. 449-451 (2007), p.1075.

[5] I. Meszaros and J. Prohaszka: J. Mater. Process. Tech. Vol. 161 (2005), p.162.

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