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Optimisation of precipitation hardening for 15-5 PH martensitic stainless steel produced by wire arc directed energy deposition
ID Ščetinec, Aljaž (Author), ID Klobčar, Damjan (Author), ID Nagode, Aleš (Author), ID Vuherer, Tomaž (Author), ID Bračun, Drago (Author), ID Trdan, Uroš (Author)

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Abstract
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/cm2.

Language:English
Keywords:wire arc additive manufacturing, 15-5 PH, solution annealing, aging, precipitation hardening, martensitic stainless steel, material characterisation
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
NTF - Faculty of Natural Sciences and Engineering
Publication status:Published
Publication version:Version of Record
Year:2023
Number of pages:Str. 558–568
Numbering:Vol. 28, no. 7
PID:20.500.12556/RUL-148265 This link opens in a new window
UDC:621.791.75
ISSN on article:1362-1718
DOI:10.1080/13621718.2023.2202979 This link opens in a new window
COBISS.SI-ID:150180355 This link opens in a new window
Publication date in RUL:08.08.2023
Views:1104
Downloads:143
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ŠČETINEC, Aljaž, KLOBČAR, Damjan, NAGODE, Aleš, VUHERER, Tomaž, BRAČUN, Drago and TRDAN, Uroš, 2023, Optimisation of precipitation hardening for 15-5 PH martensitic stainless steel produced by wire arc directed energy deposition. Science and technology of welding and joining [online]. 2023. Vol. 28, no. 7. [Accessed 16 March 2025]. DOI 10.1080/13621718.2023.2202979. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=148265
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Record is a part of a journal

Title:Science and technology of welding and joining
Shortened title:Sci. technol. weld. join.
Publisher:Taylor & Francis, Institute of Materials, Minerals and Mining
ISSN:1362-1718
COBISS.SI-ID:166337 This link opens in a new window

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

Language:Slovenian
Keywords:oblikovno obločno navarjanje z žico, 15-5 PH, raztopno žarjenje, staranje, izločevalno utrjevanje, martenzitno nerjavno jeklo, karakterizacija materiala

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P2-0270
Name:Proizvodni sistemi, laserske tehnologije in spajanje materialov

Funder:Other - Other funder or multiple funders
Funding programme:CELSA
Name:Fundamental Study on Next Generation Multi-Material Wire-Arc Additive Manufacturing

Funder:Other - Other funder or multiple funders
Funding programme:Daihen

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