B2-structured Fe3Al alloy manufactured by laser powder bed fusion: Processing, microstructure and mechanical performance

Vilardell, A. M.Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan (författare)

B2-structured Fe3Al alloy manufactured by laser powder bed fusion : Processing, microstructure and mechanical performance

Validerad;2023;Nivå 2;2023-03-03 (hanlid);Funder: JSPS KAKENHI grant (90225483); Knowledge Hub Aichi (Japan)
Prealloyed Fe3Al was successfully manufactured by laser powder bed fusion. The best set of process parameters led to parts with a relative density of 99.5 %, a surface roughness, Sa, of 31.5 ± 5.6 μm and a hardness of 319 ± 14 HV0.1. Its microstructure as well as its mechanical properties at room and high temperatures were analyzed. The results of the chemical composition showed minor variations in aluminum content oscillating between 21 and 28 at.% along the melt pool. Additionally, elongated grains were observed to grow parallel to the building direction, as well as the development of a weak 001 texture along the building direction. The mechanical properties were influenced by the temperature. Compression tests showed a loss in strength with the increase in temperature, from a yield strength of 621 ± 40 MPa at room temperature to 89 ± 20 MPa at 650 °C. Reciprocating sliding wear tests showed that fragmentation of the intermetallic at room temperature occurs, whereas plastic deformation dominated at higher temperatures. For all temperatures, tribochemical wear was also present due to the oxidation of wear debris.

Pelcastre, LeonardoLuleå tekniska universitet,Maskinelement,Luleå University of Technology(Swepub:ltu)leopel (författare)
Dimitrios, NikasKarlstads universitet,Institutionen för ingenjörsvetenskap och fysik (from 2013),Science, Mathematics and Engineering Education Research (SMEER),Karlstads universitet, SE-651 88 Karlstad, Sweden(Swepub:kau)nikadimi (författare)
Krakhmalev, Pavel,Professor,1973-Karlstads universitet,Science, Mathematics and Engineering Education Research (SMEER),Institutionen för ingenjörsvetenskap och fysik (from 2013),Karlstads universitet, SE-651 88 Karlstad, Sweden(Swepub:kau)pavekrak (författare)
Kato, M.Aichi Center for Industry and Science Technology, 1267-1 Akiai, Yakusa-cho, Toyota 470-0356, Japan (författare)
Takata, N.Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan (författare)
Kobashi, M.Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan (författare)
Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, JapanMaskinelement (creator_code:org_t)

Av författaren/redakt...: Vilardell, A. M.; Pelcastre, Leona ...; Dimitrios, Nikas; Krakhmalev, Pave ...; Kato, M.; Takata, N.; visa fler...; Kobashi, M.; visa färre...

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