ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Diamond-like carbon (DLC) is an amorphous hard carbon, which has very high hardness,high resistivity, and dielectric optical properties. Economically and technologically attractiveproperties have drawn almost unparalleled interest towards the coatings. Eutectoid steel is a kind ofmaterial that has been widely used in shafts and various kinds of industrial components. Three kindsof fatigue specimens with different DLC conditions were used in this study. Fatigue test had beenperformed to investigate the effects of DLC on fatigue properties of eutectoid steel. Thefractography was analyzed by a scanning electron microscope (SEM), and surface hardness wasalso evaluated. The fatigue limits of the DLC coated specimens did notincrease after DLC process,though the compressive residual stress which produced by DLC process can prevent fatigue fracture.According to the results of fatigue test, the optimal DLC method for improving the fatigueproperties of eutectoid steel is determined and the relationship between fatigue limits and coatingbias are obtained
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.385-387.829.pdf
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