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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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