Effects of prior microstructure and heating rate on the depth of increased hardness in laser hardening : comparison of computer simulation and experimental results

Mole, Nikolaj (avtor), Bojinović, Marko (avtor), Koc, Pino (avtor), Štok, Boris (avtor)

The response of the hypo-eutectoid steel to laser hardening, which is measured as the depth of the increased hardness, depends not only on the set of the process parameters but also on the prior microstructure of the workpiece. The multiple preliminary stages of the treatment of the workpiece in the industrial conditions are commonly not completely known, resulting in an unclear prior microstructure of the workpiece. To model the response of the hypo-eutectoid steel, a validated numerical model for laser hardening has been used in the computer simulation of the process for four different cases. The numerical model takes into account the 3D geometry of the workpiece, its prior microstructure, and the effect of the heating rate during the laser hardening process on the kinetics of the phase transformation. The four cases were designed to take into account two different sets of process parameters and two different prior microstructures of the workpiece. The output of the computer simulation was verified experimentally.

• Jezik: Angleški jezik
• Ključne besede: prior microstructures, heating rate, laser hardening, computer simulations
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo ; FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2018
• Št. strani: 16 str.
• Številčenje: Vol. 8, iss. 12, art. 1016
• PID: 20.500.12556/RUL-132013
• UDK: 539.4(045)
• ISSN pri članku: 2075-4701
• DOI: 10.3390/met8121016
• COBISS.SI-ID: 16374043
• Datum objave v RUL: 08.10.2021

Gradivo je del revije

• Naslov: Metals
• Skrajšan naslov: Metals
• Založnik: MDPI AG
• ISSN: 2075-4701
• COBISS.SI-ID: 15976214

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 03.12.2018

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: mikrostrukture, hitrost segrevanja, lasersko kaljenje, računalniške simulacije

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0263
• Naslov: Mehanika v tehniki