Effect of stabilizing elements Nb and Ti on the microstructure and properties of low carbon ferritic stainless steel-中国Betway体育网页登陆

摘要 Abstract:Theeffectofstabilizingelements,suchasNbandTi,onthemicrostmctureandpropertiesoflowcarbonferriticstainlesssteel(FSS)hasbeeninvestigated.TheresultsoftheThermo-calcsimulationhaveshownthattheinterstitialelements,suchasCandN,maybecompletelystabilizedbytheadditionofNbandTi.WiththeincreaseofNbandTicontents,thea+γtwophasesgraduallytransfertoasingleα-phaseunderahightemperaturecondition,andthecontentofthecarbideM_(23)C_6graduallydecreases.ThemicrostructurehasindicatedthatthecombinedadditionofNbandTicanpromotetherecrystallizationofthebandstructureandformmoreuniformequiaxedgrains.Also,withtheincreaseofNbandTicontents,theelongation,ther-valueandthecorrosionresistanceofcold-rolledandannealedsheetsareimprovedprominently.IncomparisonwiththeeffectofTi,theadditionofNbismorebeneficialtotheincreaseofr-valueandthecorrosionresistance.

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Effect of stabilizing elements Nb and Ti on the microstructure and properties of low carbon ferritic stainless steel

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