Investigation of initial structures of aged ω-phase crystals in β-titanium alloys using high resolution electron microscopy

In order to clarify the β → ω phase transformation mechanism in β-titanium alloys, an investigation of the atomic structure of Ti-Mo alloys at early stages of aging was carried out using high resolution electron microscopy (HREM), in situ HREM, and image-processing methods. The initial structure of...

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Bibliographic Details
Published in:Micron (Oxford, England : 1993) England : 1993), 1997-08, Vol.28 (4), p.269-277
Main Authors: Sukedai, E., Kitano, Y., Ohnishi, A.
Format: Article
Language:English
Subjects:
aged ω-phase
high resolution electron microscopy
in situ HREM
initial structure
β-titanium alloy
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Summary:In order to clarify the β → ω phase transformation mechanism in β-titanium alloys, an investigation of the atomic structure of Ti-Mo alloys at early stages of aging was carried out using high resolution electron microscopy (HREM), in situ HREM, and image-processing methods. The initial structure of ω-phase crystals was observed as a line structure of bright spots in the 〈111〉 directions with 0.28 nm spacing. The formation of the line structure was also observed with in-situ HREM. The appearance of the line structure was confirmed by an image contrast simulation method.
ISSN:0968-4328
1878-4291
DOI:10.1016/S0968-4328(97)00035-8