Elastic-stiffness distribution on dual-phase stainless steel studied by resonance ultrasound microscopy

Ogi, Hirotsugu; Niho, Hiroki; Hirao, Masahiko

Acta Materialia, 2006, 54(16), 4143-4148

Number of Access:304（2025-10-09 11:45 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/84190

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Title
Elastic-stiffness distribution on dual-phase stainless steel studied by resonance ultrasound microscopy
Creator
NRID
1000090252626 1000090252626
researchmap permalink
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Scopus Author ID
35563683500 35563683500
CreatorName
Ogi, Hirotsugu
CreatorName
Niho, Hiroki
NRID
1000080112027 1000080112027
CreatorName
Hirao, Masahiko
Subject
Acoustic methods
dual phases
elastic behavior
Electron backscattering patterns (EBSP)
Mechanical properties
Resonance ultrasound microscopy
Steels
Abstract
Distribution of the elastic stiffness coefficient in a dual-phase stainless steel is studied using resonance ultrasound microscopy and electron backscattering patterns. Using a monocrystal langasite oscillator, the resonance frequency change due to contact with the material is measured contactlessly using a solenoid coil antenna. A theoretical calculation based on the contact between two anisotropic bodies is proposed to determine the contact stiffness from the resonance frequency. The measured stiffness distribution is compared with that predicted from the orientation distribution determined using the electron backscattering-pattern method. They generally agreed but the stiffness determined by resonance ultrasound microscopy is nonuniform even in a single γ-phase grain. The nonuniformity of the chromium concentration can be a principal cause of the stiffness distribution. © 2006 Acta Materialia Inc.
Publisher
Elsevier Ltd
Source Title
Acta Materialia
Volume (Issue)
54(16)
Page
4143-4148
Date of Issued
2006-08-04
Language
English
Handle URL
https://hdl.handle.net/11094/84190
PISSN
13596454
NCID
AA11521780
AA1106787X
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1016/j.actamat.2006.04.031
Access Rights
open access
CopyRight
© 2006 Acta Materialia Inc. Published by Elsevier Ltd. This manuscript version is made available under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article