Rolling contact fatigue strength of shot peened zirconia composites
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In this paper, the rolling contact fatigue strength of zirconia monolithic and zirconia composites was investigated using steelballs under dry conditions. The fatigue life of zirconia monolithic with shot peening was longer than that of zirconia monolithicwithout shot peening. The fatigue life of SP180 was longer than that of SP300. The fatigue life of all zirconia composites wasreduced by shot peening. Many fine cracks were generated on the surface of the zirconia composites due to the differences inthe thermal expansion coefficient and the phase transformation. A great deal of flaking occurred caused by the rolling contact. The zirconia composites showed a crack healing ability, and a review and study of additives is thus required to improve therolling contact fatigue strength.
Abstract
In this paper, the rolling contact fatigue strength of zirconia monolithic and zirconia composites was investigated using steelballs under dry conditions. The fatigue life of zirconia monolithic with shot peening was longer than that of zirconia monolithicwithout shot peening. The fatigue life of SP180 was longer than that of SP300. The fatigue life of all zirconia composites wasreduced by shot peening. Many fine cracks were generated on the surface of the zirconia composites due to the differences inthe thermal expansion coefficient and the phase transformation. A great deal of flaking occurred caused by the rolling contact. The zirconia composites showed a crack healing ability, and a review and study of additives is thus required to improve therolling contact fatigue strength.
참고문헌 (9)
- K. Houjou, , J. Soc. Mater. Sci. Jpn, 58, pp.510~515 (2009)
- 남기우, "The crack healing behavior of $ZrO2", SiC composite ceramics with $TiO2 additive, 2012, pp.26(7), 2093~2096[DOI]
- W. Pfeiffer, , J. Eur. Ceram. Soc, 26, pp.2639~2645 (2006)
- K. Takahashi, , J. Eur. Ceram. Soc, 30, pp.3047~3052 (2010)
- R. Hwang, "Crack-healing behavior of ZrO2 composite ceramics and characteristics by shot peening treatment", Master, pp.2013
- W.J. Moon, , Materials Sci. & Eng. A, pp.387~389 (2004)
- H. Yamamoto, , JSME Journals, 79, pp.740~744 (2012)
- K. Kida, , JSME Journals, 66, pp.901~908 (2000)
- K. Kida, , Fatig. Fract. Eng. Mater. Struct, 28, pp.1087~1097 (2005)