Mechanical and Wear Properties of Nanostructured Surface Layer in Iron Induced by Surface Mechanical Attrition Treatment-中国Betway体育网页登陆

摘要 Aporosity-freeandcontamination-freesurfacelayerwithgrainsizesrangingfromnanometertomicrometerinFesampleswasobtainedbysurfacemechanicalattritiontreatment(SMAT)technique.MechanicalandwearpropertiesofthesurfacelayerintheSMATedandannealedFesamplesweremeasuredbymeansofnanoindentationandnanoscratchtests,respectively.ExperimentalresultsshowedthatthehardnessofthesurfacelayerintheSMATedFesampleincreasedevidentlyduetothegrainrefinement.TheelasticnoduliofthesurfacelayersintheSMATedandannealedFesampleswereunchanged,independentofgrainsizeinthepresentgrainsizeregime.ComparedwiththeoriginalFesample,thewearresistanceenhancedandthecoefficientoffrictiondecreasedinthesurfacelayeroftheSMATedFesample.

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Mechanical and Wear Properties of Nanostructured Surface Layer in Iron Induced by Surface Mechanical Attrition Treatment

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