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OBSERVATIONS OF THE BAINITE-AUSTENITE INTERFACE STURCTURE IN 55SiMnMo STEEL

LI Chengji

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Abstract

An electron microscopical study has been performed on quenched bainite-austenite interfaces in 55SiMnMo steel.From these observations,it is conclu-ded that the bainiticferrite-austenite is more closely associated with theWidmanstatten ferrite-austenite interface than with the lath martensite-aus-tenite interface,which is expected to posess defects of screw character.

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An electron microscopical study has been performed on quenched bainite-austenite interfaces in 55SiMnMo steel.From these observations,it is conclu-ded that the bainiticferrite-austenite is more closely associated with theWidmanstatten ferrite-austenite interface than with the lath martensite-aus-tenite interface,which is expected to posess defects of screw character.

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Available abstract

An electron microscopical study has been performed on quenched bainite-austenite interfaces in 55SiMnMo steel.From these observations,it is conclu-ded that the bainiticferrite-austenite is more closely associated with theWidmanstatten ferrite-austenite interface than with the lath martensite-aus-tenite interface,which is expected to posess defects of screw character.

Key concepts: Bainite, Lath, Austenite, Materials science, Martensite, Ferrite (magnet), Metallurgy, Composite material

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