Optimisation of precipitation hardening for 15-5 PH martensitic stainless steel produced by wire arc directed energy deposition

Ščetinec, Aljaž (avtor), Klobčar, Damjan (avtor), Nagode, Aleš (avtor), Vuherer, Tomaž (avtor), Bračun, Drago (avtor), Trdan, Uroš (avtor)

This paper discusses directed energy deposition of 15-5 PH, which was successfully tailored with precipitation hardening (PH) to achieve the desired properties. Parametric analysis of solution annealing and aging at various time and temperature combinations was performed. Material characterisation was done in the as-deposited, solution annealed, and PH states. Investigations included microscopy, SEM/EDS, fractography, hardness, tensile, and impact toughness test. The as-deposited microstructure was composed of martensite laths along with delta ferrite. Optimisation of solution annealing was mandatory to achieve homogeneous austenite, which allowed PH. PH resulted in similar properties compared to conventionally produced steel. Peak aging resulted in 450 HV10 and an Rm of 1350 MPa, while the over-aged condition resulted in an impact toughness of over 77 J/cm$^2$.

• Jezik: Angleški jezik
• Ključne besede: wire arc additive manufacturing, 15-5 PH, solution annealing, aging, precipitation hardening, martensitic stainless steel, material characterisation
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo ; NTF - Naravoslovnotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: Str. 558–568
• Številčenje: Vol. 28, no. 7
• PID: 20.500.12556/RUL-148265
• UDK: 621.791.75
• ISSN pri članku: 1362-1718
• DOI: 10.1080/13621718.2023.2202979
• COBISS.SI-ID: 150180355
• Datum objave v RUL: 08.08.2023

Gradivo je del revije

• Naslov: Science and technology of welding and joining
• Skrajšan naslov: Sci. technol. weld. join.
• Založnik: Taylor & Francis, Institute of Materials, Minerals and Mining
• ISSN: 1362-1718
• COBISS.SI-ID: 166337

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: oblikovno obločno navarjanje z žico, 15-5 PH, raztopno žarjenje, staranje, izločevalno utrjevanje, martenzitno nerjavno jeklo, karakterizacija materiala