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ID 116783
Title Alternative
生体医用応用を目的としたTi合金中のα相とβ相の体積磁化率の評価
Author
Yoshimura, Muneyuki Tokushima University
Keywords
Volume magnetic susceptibility
Phase constitution
Heat treatment
Ti-6Al-4V alloy
Ti-Mo alloy
Content Type
Thesis or Dissertation
Description
Metallic medical devices in the human body cause serious artifacts in magnetic resonance imaging owing to the volume magnetic susceptibility (χν) mismatch between the device and tissue around the device. To reduce artifacts, medical devices produced from alloys with χν values of approximately −9 × 10−6 are required. Controlling the phase constitution is a basic technique used to control the χν value of an alloy, and the χν value of each phase is a fundamental property. In this study, an α+β-type Ti alloy and two β-type Ti alloys were investigated. The estimated χν values of the α-phase of the alloys were similar to or smaller than that of pure Ti. In contrast, the estimated χν values of the β-phase of the alloys were larger than that of pure Ti. Since the χν value of pure Ti is much larger than −9 × 10−6, the χν values of the β-phases suggested that increasing the volume fraction of the β-phase was not appropriate for producing a Ti alloy with a lower χν value.
Journal Title
Journal of Oral Health and Biosciences
ISSN
21896682
Publisher
四国歯学会
Volume
34
Issue
2
Start Page
34
End Page
39
Sort Key
34
Published Date
2022-03-06
Remark
内容要旨・審査要旨・論文本文の公開
本論文は,著者Muneyuki Yoshimuraの学位論文として提出され,学位審査・授与の対象となっている。
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
ETD
MEXT report number
甲第3585号
Diploma Number
甲口第480号
Granted Date
2022-03-10
Degree Name
Doctor of Dental Science
Grantor
Tokushima University
departments
Oral Sciences
University Hospital