Mehanizem hitre tvorbe bainita pri nizkih temperaturah : doktorska disertacija

(UM)

Mehanizem hitre tvorbe bainita pri nizkih temperaturah : doktorska disertacija

Kirbiš, Peter

V okviru doktorske disertacije je bil razvit nov postopek hitre tvorbe bainita v jeklih ter posledično nova skupina bainitnih jekel, ki imajo izjemno hitro kinetiko tvorbe bainita pri nizkih ... temperaturah, običajno pod 250°C. Za ta jekla je značilen razvoj izjemno fine bainitne mikrostrukture med kontinuirnim ohlajanjem/kaljenjem iz temperature avstenitizacije, ne da bi pri tem potrebovali izotermne toplotne obdelave. Udarna žilavost in druge mehanske lastnosti ostajajo v skladu z najpogostejšimi zahtevami glede žilavosti in standardnimi specifikacijami, hkrati pa ohranjajo zadostno prekaljivost za zagotovitev homogenih lastnosti znotraj velikih presekov. Ta jekla imajo visoko trdoto do 65HRC in majhno geometrijsko popačenje oz. distorzijo med toplotno obdelavo. Zaradi teh lastnosti so novo razvita jekla še posebej primerna za izdelavo orodij za delo v hladnem, nožev, balistične zaščite ter strojnih delov visoke trdnosti. Ključna značilnost teh jekel je tvorba bainitnih nukleusov pri visoki temperaturi in hitra rast bainitnega ferita pri nizki temperaturi. To je v nasprotju z običajnimi oz. splošno poznanimi jekli in železovimi zlitinami, znotraj katerih se ta dva koraka izvajata sočasno. Metoda, s katero smo to dosegli, se je poimenovala kinetična aktivacija bainita -KAB in skupine zlitin KAB jekla.

Type of material - dissertation ; adult, serious

Publication and manufacture - Maribor : [P. Kirbiš], 2022

Language - slovenian

COBISS.SI-ID - 155271683

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Digital Library of the University of Maribor – DLUM
Digitalna knjižnica Slovenije - dLib.si

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Library	Call number – location, accession no. ...	Copy status
Library of Technical Faculties, Maribor	pisarna A-003 (FERI) DD B KIRBIŠ P. Mehanizem	available - reading room
University of Maribor Library	Skladišče II 109108	available - reading room

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Year	Impact factor		Edition		Category		Classification
Year	JCR	SNIP	JCR	SNIP	JCR	SNIP	JCR	SNIP

Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Kirbiš, Peter	38723
Brunčko, Mihael	20229

Source: Personal bibliographies and: SICRIS

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