Razvoj novoga legirnoga sustava alatnih čelika na osnovi termodinamičkih parametara

doctoral thesis

• Title (english): Development of a new alloying system for tool steels based on thermodynamic parameters
• Author: Sandra Brajčinović
• Mentor: Anita Begić Hadžipašić (mentor)
• Mentor: Jožef Medved (komentor); VIAF: 311357511
• Committee member: Stjepan Kožuh (predsjednik povjerenstva)
• Committee member: Vesna Alar (član povjerenstva)
• Committee member: Ladislav Vrsalović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Metallurgy; Sisak
• Defense date and country: 2024-06-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Metallurgy; Process Metallurgy
• Universal decimal classification (UDC): 669 - Metallurgy

Abstract

U ovom istraživanju proučavana je termodinamika metalurških procesa naprednih metalnih alata, tj. alatnih čelika. Istraživanja su pokazala rezultate modeliranja kemijskog sastava dva tipa alatnih čelika za topli rad oznake Dievar i HTCS-130. Zabilježeno je izdvajanje pojedinih faza, nastanak karbida te su praćene temperaturne promjene i područja u kojima se odvijaju termodinamički procesi. Svi parametri povezani su s parametrima koji su dobiveni nakon elektrokemijskih ispitivanja, a metalografskom analizom utvrđene su nastale pojave u čelicima. Iz dobivenih rezultata nakon provedenih ispitivanja uslijedilo je uspoređivanje dvaju tipova čelika te je donesen zaključak o njihovim mogućnostima primjene u raznolikim uvjetima u kojima se alatni čelici primjenjuju.

Abstract (english)

In this research, the thermodynamics of metallurgical processes of advanced metal tools, i.e. tool steels, was studied. Research has shown the results of modeling the chemical composition of two types of hot work tool steels, Dievar and HTCS-130. The separation of individual phases, the formation of carbides was recorded, and temperature changes and areas where thermodynamic processes take place were monitored. All parameters are related to the parameters obtained after electrochemical tests, and metallographic analysis determined the phenomena in the steels. From the results obtained after the tests, a comparison of the two types of steel followed, and a conclusion was reached about their application possibilities in the various conditions in which tool steels are used.

• Keywords: Metalurški procesi; alatni čelici; termodinamika; korozija; kinetika; mikrostruktura
• Keywords (english): Metallurgical processes; tool steels; thermodynamics; corrosion; kinetics; microstructure
• Language: croatian
• URN:NBN: urn:nbn:hr:115:205473
• Promotion: 2024
• Project: Number: KK.01.1.1.02.0022; Title: Virtulab – Integrirani laboratorij za primarne i sekundarne sirovine; Title: Virtulab – Integrirani laboratorij za primarne i sekundarne sirovine; Acronym: Virtulab; Leader: Sibila Borojević Šoštarić; Jurisdiction: eu; Funder: Europska komisija; Funding stream: European Regional Development Fund
• Project: Number: KK.01.1.1.02.0020; Title: Centar za ljevarstvo - SIMET; Title: Center for casting - SIMET; Acronym: SIMET; Leader: Zdenka Zovko Brodarac; Jurisdiction: eu; Funder: Europska komisija; Funding stream: European Regional Development Fund
• Study programme: Title: Doctoral study mechanical engineering, naval architecture, aeronautical engineering, metallurgical engineering; Study programme type: university; Study level: postgraduate; Academic / professional title: doktor/doktorica znanosti, područje tehničkih znanosti (doktor/doktorica znanosti, područje tehničkih znanosti)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-07-12 06:51:03