QUANTITATIVE RESEARCH ON THE STRENGTH AND MICROSTRUCTURE IN TRACE—Ti—BEARING STRUCTURE STEEL WITH DIFFERENT COOLING TECHNIQUES-中国期刊网

摘要 Aim:Tostudythestrengthandmicrostructureoftrace-Ti-bearingstracturesteel.MaterialsandMethods:ThestrengthandmicrostructureofthetraceTibearingstructuresteelwerestudiedbytwokindsofcontrolledcoolingsimulationtestingresultsinthefirststagecoolingandthelaststagecoolingafterhotpressdeformationinthetrace-Ti-bearingstructuresteel.Results:Itshowedthattheferritegrainsize,therelativecontributionoftheinvolvedstrengthandthemechanicalstrengthwereinfluencedmoreorlessbydifferentcoolingrates.Boththerefinementofferritegrainandtheincreaseofmechanicalstrengthcouldbeobtainedbytheproperdecreaseofwatercoolinginterruptiontemperature(WTI)andcoilingtemperature(CT)inthefirststagecoolingortheproperincreaseofwatercoolingbeginningtemperature(WTB)andproperdecreaseofcoilingtemperature(CT)inthelaststagecooling.Conclusion:Thestrength,theferritegrainrefinementandtheyieldtensileratiointhefirststagecoolingprocessaremuchbetterthanthoseinthelaststagecoolingprocess.

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QUANTITATIVE RESEARCH ON THE STRENGTH AND MICROSTRUCTURE IN TRACE—Ti—BEARING STRUCTURE STEEL WITH DIFFERENT COOLING TECHNIQUES

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QUANTITATIVE RESEARCH ON THE STRENGTH AND MICROSTRUCTURE IN TRACE—Ti—BEARING STRUCTURE STEEL WITH DIFFERENT COOLING TECHNIQUES

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