Failure analysis of steel bearing plates
Steel bearing plates appeared to have failed during service due to wear damage. The subsequent failure analysis revealed that the observed surface damage was the result of widespread plastic deformation and smearing associated with a network of surface crazing, rather than wear. Additionally, the majority of the bearing plates examined met microstructural specifications, although both the carbon and manganese contents were below the specified limits. The deficiencies in carbon and manganese lowered the hardenability of the alloy and may have contributed to the need for an overly severe quench during the heat treatment processing employed during manufacture.
Keywordsaustenitic nitrocarburized carbon steel crazing embrittlement heat treatment
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- 1.L.E. Alban: Systematic Analysis of Gear Failures, ASM International, 1985.Google Scholar
- 2.Surface Engineering, vol. 5, ASM Handbook, ASM International, 1994.Google Scholar
- 3.J.R. Davis, ed.: ASM Materials Engineering Dictionary, ASM International, 1992.Google Scholar
- 4.G. Vander Voort: Metallography: Principles and Practice, ASM International, 1999.Google Scholar
- 5.T. Lyman, ed.: Atlas of Microstructures of Industrial Alloys, vol. 7, Metals Handbook, 8th ed., American Society for Metals, Metals Park, OH, 1972.Google Scholar
- 6.H. Chandler, ed.: Heat Treater’s Guide: Practices and Procedures for Irons and Steels, ASM International, 1995.Google Scholar
- 7.“Standard Test Method for End-Quench Test for Hardenability of Steel,” Designation A255-89(94), Annual Book of ASTM Standards, vol. 01.05, ASTM, 1996.Google Scholar
- 8.R.E. Reed-Hill and R. Abbaschian: Physical Metallurgy Principles, 3rd ed., PWS Publishing, Boston, MA, 1994.Google Scholar
- 9.P.D. Harvey, ed.: Engineering Properties of Steel, ASM International, 1982.Google Scholar