Microstructure of a Spray Deposited Intermetallic Compound Alloy of Ni-Al-Mo System

The microstructure of a spray deposited intermetallic compound alloy of Ni-Al-Mo system（Ni3Al-Mo intermetallic compound alloy） prepared by a spray atomization deposition was studied in detail by using optical metallography,XRD,DTA,SEM,TEM,HREM and computer simulation.The preform consists of uniform...

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Veröffentlicht in:	Journal of Wuhan University of Technology. Materials science edition 2010-06, Vol.25 (3), p.375-378
Hauptverfasser:	Mi, Guofa, Liu, Yanlei, Tian, Shifan
Format:	Artikel
Sprache:	eng
Schlagworte:	Alloy systems Alloys Atomization Atomizing Chemistry and Materials Science Computer simulation Cubic lattice Deposition Differential thermal analysis Enrichment Grains Intermetallic compounds Intermetallics Lattice parameters Materials Science Metallography Microporosity Microstructure Networks Ni3Al Nickel Nickel base alloys Phases Preforms Scanning electron microscopy Sprayers Sprays Transmission electron microscopy 喷射沉积喷射雾化沉积微观结构金属间化合物铝钼合金面心立方结构
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Zusammenfassung:	The microstructure of a spray deposited intermetallic compound alloy of Ni-Al-Mo system（Ni3Al-Mo intermetallic compound alloy） prepared by a spray atomization deposition was studied in detail by using optical metallography,XRD,DTA,SEM,TEM,HREM and computer simulation.The preform consists of uniform and equiaxial grains,ranging from 10-40 μm,with some microporosity.Besides the main phases of the matrix alloy γ＇ and γ,Ni2Mo and Ni3Mo phases are also found within the γ network.A new Ni enriched phase in the γ phase was identified to have face-centered cubic structure with a lattice constant α=1.09 nm and space group Fm3m.
ISSN:	1000-2413 1993-0437
DOI:	10.1007/s11595-010-0004-4