Microstructure and texture formation in commercially pure titanium prepared by cryogenic milling and spark plasma sintering

This paper investigates texture formation in titanium prepared by powder metallurgy – namely by cryogenic milling and the subsequent spark plasma sintering. Transmission Kikuchi diffraction was used for the investigation of the milled powder particles, the sintered material was studied by electron b...

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Bibliographic Details
Published in:Materials characterization 2019-05, Vol.151, p.1-5
Main Authors: Kozlík, Jiří, Harcuba, Petr, Stráský, Josef, Becker, Hanka, Šmilauerová, Jana, Janeček, Miloš
Format: Article
Language:English
Subjects:
Electron backscatter diffraction
Powder metallurgy
Texture
Titanium
Transmission Kikuchi diffraction
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Summary:This paper investigates texture formation in titanium prepared by powder metallurgy – namely by cryogenic milling and the subsequent spark plasma sintering. Transmission Kikuchi diffraction was used for the investigation of the milled powder particles, the sintered material was studied by electron backscatter diffraction. Titanium remains ductile during cryomilling, which results in the flattening and repetitive shear deformation of the particles. The observed texture can be explained on the basis of the rolling texture in the titanium. Due to the shape of the milled powder particles, the texture is transferred to the sintered material. The achieved results may be relevant to other ductile metallic materials prepared by milling and subsequent consolidation. [Display omitted] •Transmission Kikuchi diffraction used to observe microstructure of milled powder•Texture found in both powder and bulk material•Powder particle morphology is important for the texture formation.
ISSN:1044-5803
1873-4189
DOI:10.1016/j.matchar.2019.02.035