Morphological and microstructural characterization of Al95Fe2 Cr2 Ti1 powders produced by two different gas atomizers
Aylanna Priscila Marques de Araújo, Leandro Micheloti, Claudio Shyinti Kiminami, Claudemiro Bolfari, Volker Uhlenwinkel, Piter Gargarella
This work aimed to produce powders of Al95Fe2 Cr2 Ti1 quasicrystalline phase former alloy using different atomizers, Hermiga (PH) and Spray forming/gas atomizer (PS), and investigate the powder characteristics as morphology, size distribution, flowability, microstructure, phase formation and thermal stability. The atomized powders were separated in different particles size ranges: <32μm, 32-45 μm and 45-75 μm. The characterization of powder microstructure and morphology for each range was carried out by X-ray diffraction, Optical and Scanning Electron Microscopy, Differential Scanning Calorimetry (DSC) and semi-quantitative composition analysis by Energy Dispersive Spectrometer (EDS). The flowability was measured by Carney funnel. The PH powder presented a bimodal particle size distribution and its particles displayed a constant circularity and aspect ratio with microstructure rich in quasicrystalline phase. The PS powder showed a unimodal particle size distribution and the circularity and aspect ratio decrease with increasing particles size. The PS powder flowability was 1.6 times better than PH powder.
1 Suryanarayana C. Non-equilibrium processing of materials. 1st ed. Amsterdam: Elsevier; 1999.
2 García-Escorial A, Lieblich M. Atomization of Al-rich alloys: three paradigmatic case studies. Journal of Alloys and Compounds. 2018;762:203-208.
3 Ciftci N, Ellendt N, Coulthard G, Barreto ES, Mädler L, Uhlenwinkel V. Novel cooling rate correlations in molten metal gas atomization. Metall and Materi Trans B. 2019;50:666-677.
4 Yefimov NA. Powders with quasicrystalline structure. In: Neikov OD, Naboychenko SS, Yefimov NA. Handbook of non-ferrous metal powders. Amsterdam: Elsevier; 2019 [cited 2019 June 21]. Available at: https://linkinghub.elsevier.com/retrieve/pii/B9780081005439000105
5 Özbilen S. Satellite formation mechanism in gas atomised powders. Powder Metallurgy. 1999;42:70-78.
6 Schwenck D, Ellendt N, Fischer-Bühner J, Hofmann P, Mädler L, Uhlenwinkel V. Effect of Process Parameters on Powder Quality. In: SDMA. 5th Int Conf on Spray Deposition and Melt Atomization. Bremen, Germany; Bremen: SDMA; 2013. p. 12.
7 Gao C, Xiao Z, Zou H, Liu Z, Chen J, Li S, et al. Characterization of spherical AlSi10Mg powder produced by double-nozzle gas atomization using different parameters. Transactions of Nonferrous Metals Society of China. 2019;29:374-384.
8 Vlachos N, Chang ITH. Investigation of flow properties of metal powders from narrow particle size distribution to polydisperse mixtures through an improved Hall-flowmeter. Powder Technology. 2011;205:71-80.
9 Mostaghimi F, Fischer-Bühner J, Heemann L, Hofmann P, von Hehl A, Uhlenwinkel V. Anti-satellite system for the improvement of powder quality in additive manufacturing using a FeMnAlSi alloy. In: European Powder Metallurgy Association. Proceedings of the Euro PM2018. Bilbao, Spain; Bilbao: EPMA; 2018.
10 Dám K, Vojtěch D, Průša F. Powder metallurgy Al–6Cr–2Fe–1Ti alloy prepared by melt atomisation and hot ultrahigh pressure compaction. Materials Science and Engineering A. 2013;560:705-710.
11 Inoue A, Kimura H. High-strength aluminum alloys containing nanoquasicrystalline particles. Materials Science and Engineering A. 2000;286:1-10.
12 Inoue A, Kimura H, Sasamori K, Masumoto T. High mechanical strength of Al–(V, Cr, Mn)–(Fe, Co, Ni) quasicrystalline alloys prepared by rapid solidification. Materials Transactions. 1996;37:1287-1292.
13 Inoue A, Kimura H, Yamaura S. Production and mechanical properties of aluminum alloys with dispersed nanoscale quasicrystalline and amorphous particles. Metals and Materials International. 2003;9:527-536.
14 Galano M, Audebert F, Escorial AG, Stone IC, Cantor B. Nanoquasicrystalline Al–Fe–Cr-based alloys. Part II. Mechanical properties. Acta Materialia. 2009;57:5120-5130.
15 Bártová B, Vojtěch D, Verner J, Gemperle A, Studnička V. Structure and properties of rapidly solidified Al–Cr–Fe–Ti–Si powder alloys. Journal of Alloys and Compounds. 2005;387:193-200.
16 Cui C, Uhlenwinkel V, Schulz A, Zoch H-W. Austenitic stainless steel powders with increased nitrogen content for laser additive manufacturing. Metals. 2019;10:61.
17 Garcia-Escorial A, Natale E, Cremaschi VJ, Todd I, Lieblich M. Quasicrystalline Al93Fe3Cr2Ti2 alloys. Revista de Metalurgia. 2015;51(4):e054.
18 Galano M, Audebert F, Stone IC, Cantor B. Nanoquasicrystalline Al–Fe–Cr-based alloys. Part I: Phase transformations. Acta Materialia. 2009;57:5107-5119.
19 Galano M, Audebert F, Escorial AG, Stone IC, Cantor B. Nanoquasicrystalline Al–Fe–Cr-based alloys with high strength at elevated temperature. Journal of Alloys and Compounds. 2010;495:372-376.
20 Yamasaki M, Nagaishi Y, Kawamura Y. Inhibition of Al grain coarsening by quasicrystalline icosahedral phase in the rapidly solidified powder metallurgy Al–Fe–Ti–Cr alloy. Scripta Materialia. 2007;56:785-788.
21 Inoue A, Kimura H. High elevated-temperature strength of Al-based nanoquasicrystalline alloys. Nanostructured Materials. 1999;11:221-231.
22 Kang N, Fu Y, Coddet P, Guelorget B, Liao H, Coddet C. On the microstructure, hardness and wear behavior of Al-Fe-Cr quasicrystal reinforced Al matrix composite prepared by selective laser melting. Materials & Design. 2017;132:105-111.
23 Leonard HR. Development of quasicrystal morphology in gas-atomized icosahedral-phase-strengthened aluminum alloy powders. Materials & Design. 2019;182:10.
24 Audebert F, Galano M, Rios CT, Kasama H, Peres M, Kiminami C, et al. Nanoquasicrystalline Al–Fe–Cr–Nb alloys produced by powder metallurgy. Journal of Alloys and Compounds. 2013;577:650-657.
25 Galano M, Audebert F, Cantor B, Stone I. Structural characterisation and stability of new nanoquasicrystalline Al-based alloys. Materials Science and Engineering A. 2004;375–377:1206-1211.
26 Stan-Głowińska K. Formation of Quasicrystalline Phases and Their Close Approximants in Cast Al-Mn base alloys modified by transition metals. Crystals. 2018;8:61.
27 Khoruzha VG, Kornienko KE, Pavlyuchkov DV, Grushko B, Velikanova TY. The Al–Cr–Fe phase diagram. I. Phase equilibria at subsolidus temperatures over composition range 58–100 at.% Al. Powder Metallurgy and Metal Ceramics. 2011;50:83-97.
28 Garcia-Escorial A, Echevarria M, Lieblich M, Stone I. Characterisation of an Al93Fe3Cr2Ti2 alloy obtained by spray forming. Journal of Alloys and Compounds. 2010;504:S519-S521.
29 García-Escorial A, Natale E, Cremaschi VJ, Todd I, Lieblich M. Microstructural transformation of quasicrystalline AlFeCrTi extruded bars upon long thermal treatments. Journal of Alloys and Compounds. 2015;643:S199-S203.
30 Todd I, Chlup Z, O’Dwyer JG, Lieblich M, García-Escorial A. The influence of processing variables on the structure and mechanical properties of nano-quasicrystalline reinforced aluminium alloys. Materials Science and Engineering A. 2004;375–377:1235-1238.