<i>Ab initio</i>
 investigations of point and complex defect structures in B2-FeAl

Sözen, Halil Ibrahim; Mendive-Tapia, Eduardo; Hickel, Tilmann; Neugebauer, Jörg

doi:10.1103/physrevmaterials.6.023603

Cited by 4 publications

(1 citation statement)

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“…FeAl intermetallic compounds have attracted great interest [1][2][3][4][5][6][7] because of their outstanding corrosion resistance, wear resistance, low density and low cost of their raw materials, which make them an attractive alternative to more expensive materials, such as stainless steels for certain applications [8][9][10]. However, they show low ductility at room temperature.…”

Section: Introductionmentioning

confidence: 99%

Conceptual Design of a Pilot Process for Manufacturing Aluminum-Based Intermetallic Compound Powders

Salazar¹,

Lagos

2023

Powders

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The FeAl intermetallic compound is of great interest for industry due to its low density, low cost and high mechanical and corrosion resistance, so it can replace stainless steels and nickel-based alloys for some applications. In previous publications, the concept (principle) test for a novel FeAl powder manufacturing process has been shown. It consists mainly of the following stages: (a) metallic strip manufacture through rapid solidification, (b) water vapor exposure of these metallic strips for their disintegration and powder generation and (c) powder drying. Experimental tests were performed for 2 g of the FeAl intermetallic compound. However, this process can be extended to manufacture any other intermetallic compound containing aluminum, such as TiAl, NiAl, CoAl or any other that can be obtained from every element that can combine with aluminum, if the aluminum content is between 55 and 60 at.%. Nowadays, this process is at technology readiness level (TRL) 3. Therefore, in this paper, a process equipment up-scaling configuration for producing up to 15 kg powder is proposed. This manufacturing process is an industrial alternative to those commonly used to produce powders of this type of intermetallic compounds, such as mechanical alloying (MA). Moreover, several alternatives for employing renewable energy sources are given, making it even more environmentally sustainable.

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