Spherical Ti-6Al-4V Powders Produced by Gas Atomization

Abstract:

In this study, we fabricated spherical Ti-6Al-4V powders using gas atomization. Scanning electron microscope, optical microscope, X-ray diffraction and particle size distribution were extensively performed to investigate the properties of gas-atomized Ti-6Al-4V powders. The XRD analysis shows all the gas-atomized powders are with both α and β phases. The surface of coarse powders exhibited cellular structure with equiaxed grains. However, the fine powders achieved smooth surfaces and could not be observed any crystallization. Attributed to rapid solidification, both α cell and needle-like martensite α’ phase were observed in the internal area of coarse powders, while only honeycomb cellular structure was demonstrated with refined grains in fine powders.

• Periodical: Key Engineering Materials (Volume 704)
• Pages: 287-292
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.704.287
• Online since: August 2016
• Authors: Gang Chen*, Ping Tan, Shao Yang Zhao, Wei Wei He, Huiping Tang
• Keywords: Gas Atomization, Martensite, Particle Size, Ti-6Al-4V

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