Beta-Stabilized Ti-5Al-5Mo-5V-3Cr Primary and Secondary Phase Characterization using Ultrasonic Attenuation

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2023
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Sunderman, Ruth M.
Quintana, Maria J.
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Collins, Peter
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Materials Science and Engineering

The Department of Materials Science and Engineering teaches the composition, microstructure, and processing of materials as well as their properties, uses, and performance. These fields of research utilize technologies in metals, ceramics, polymers, composites, and electronic materials.

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The Department of Materials Science and Engineering was formed in 1975 from the merger of the Department of Ceramics Engineering and the Department of Metallurgical Engineering.

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1975-present

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Abstract
Ti-5Al-5Mo-5V-3Cr (Ti-5553) is a beta-stabilized titanium alloy being evaluated for its use in additive manufacturing. The development of effective nondestructive characterization tools will be critical for successful insertion of Ti-5553 into applications. The microstructure of Ti-5553 can be modified significantly, through heat treatments alone, to produce single β-phase microstructure or dual α-β microstructure with variations on the types and quantities of the α phase in a β matrix. In this work, a set of heat treatments was chosen to obtain a range of microstructures, followed by an investigation of the ultrasonic response to gauge the degree to which these variations could be detected. Ultrasonic attenuation was selected because of its ability to detect differences in grain size and, potentially, the existence and limited details of secondary phases . Initial results show a very distinctive difference in attenuation between the single phase β and the α+β microstructures, and smaller, but still significant, differences among the α+β microstructures indicating that this approach merits further development.
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This conference presentation is published as Sunderman, Ruth, Maria Quintana, and Peter Collins. Beta-Stabilized Ti-5Al-5Mo-5V-3Cr Primary and Secondary Phase Characterization using Ultrasonic Attenuation. No. NSC-614-5100. Kansas City Nuclear Security Campus (KCNSC), Kansas City, MO (United States), 2023. Copyright 2022 The Author(s). Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0). Posted with permission.
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