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MethodforPreparingMetallographicSampleswithThinandDarkSurfaceLayer

GUOHai£Çxia,WANG Ming£Çjian,WANGShi£Çning

(LuoyangShipMaterialResearchInstitute,Luoyang£´£·£±£°£²£³,China)

Abstract:Forthesituationthatthemetallographicsampleswiththinanddarksurfacelayerweredifficulttobepreparedbytheconventionalmethod,twokindsofmetallographicsamplepreparationmethodsfortheprotectionofsuchsurfacelayerwereintroduced£®Oneofthemethodswasto makethesurfacelayersofthetwoidenticalsamplescloselycontacttoeachother,andtheothermethodwastomakethesurfacelayertightlyattachwithathincoppersheet£®Thepreparationeffectofthesetwomethodswascomparedwiththatoftheconventionalmethod£®The

resultsshowthatbothofthesetwomethodscouldeffectivelyprotectthesurfacelayerofmetallographicsamples,

andmakeobservingormeasuringthesurfacelayereasier£®

Keywords:thinanddarksurfacelayer;metallographicsample;preparationmethod

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