フルテキストURL fulltext20210518-4.pdf
著者 Tada, Naoya| Uemori, Takeshi| Sakamoto, Junji|
備考 This is an Accepted Manuscript of an article published by ASME International.<br> This fulltext is available in October 2021.|
発行日 2020-10-5
出版物タイトル Journal of Pressure Vessel Technology
143巻
2号
出版者 ASME International
開始ページ 021502
ISSN 0094-9930
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 (c) ASME, 2021
論文のバージョン author
DOI 10.1115/1.4048063
Web of Science KeyUT 000626089100013
関連URL isVersionOf https://doi.org/10.1115/1.4048063
フルテキストURL fulltext.pdf
著者 Sakamoto, Junji| Tada, Naoya| Uemori, Takeshi| Kuniyasu, Hayato|
キーワード nondestructive inspection crack detection low loading surface profile turbine blade finite element analysis
発行日 2020-07-16
出版物タイトル Applied Sciences
10巻
14号
出版者 MDPI
開始ページ 4883
ISSN 2076-3417
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 © 2020 by the authors.
論文のバージョン publisher
DOI 10.3390/app10144883
Web of Science KeyUT 000554160000001
関連URL isVersionOf https://doi.org/10.3390/app10144883
フルテキストURL fulltext.pdf
著者 Karunathilaka, Nuwan| Tada, Naoya| Uemori, Takeshi| Hanamitsu, Ryota| Fujii, Masahiro| Omiya, Yuya| Kawano, Masahiro|
キーワード cold forging high-speed tool steel lubrication residual stress surface roughness tool deformation
発行日 2019-07-12
出版物タイトル Metals
9巻
7号
出版者 MDPI
開始ページ 783
ISSN 2075-4701
資料タイプ 学術雑誌論文
言語 English
OAI-PMH Set 岡山大学
著作権者 © 2019 by the authors.
論文のバージョン publisher
DOI 10.3390/met9070783
Web of Science KeyUT 000482332400067
関連URL isVersionOf https://doi.org/10.3390/met9070783
JaLCDOI 10.18926/46996
フルテキストURL mfe_36_1_007_016.pdf
著者 Li, Yan| Abe, Takeji| Tada, Naoya| Kanazawa, Masanori|
抄録 The change in the surface morphology of polycrystalline titanium during tensile plastic deformation is studied, using the scanning probe microscope as well as the laser scanning microscope. The observation shows that the slip occurs mainly near grain boundary at the strain range of ε < 0.05. The slip develops with the applied strain, and the slip on the second slip system or the crossing of slip lines appear. The surface roughness increases linearly with the applied strain. The height difference between the grain boundary area and the inner grain area also increases with the applied strain, though the increase rate becomes low after the applied strain of about 0.3. The nano-scale height difference of the surface step of slip lines increases with the applied strain, though it remains almost constant after the applied strain of 0.4. The averaged surface roughness measured with the scanning probe microscope is in good agreement with that measured with the laser scanning microscope.
キーワード Plasticity Polycrystalline Titanium Tensile Deformation Surface Morphology Slip Twin Probe Scanning Microscope Laser Scanning Microscope
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 2001-12
36巻
1号
開始ページ 7
終了ページ 16
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 80012831215
JaLCDOI 10.18926/46995
フルテキストURL mfe_36_1_001_006.pdf
著者 Kondou, Ryouji| Abe, Takeji| Tada, Naoya| Shimizu, Ichiro|
抄録 Change in crystal orientation and strain of individual grains during tensile plastic deformation are studied to clarify on the microscopic deformation behavior of polycrystalline copper. The orientation of grain is measured by electron backscatter diffraction (EBSD) technique in the scanning electron microscope. The principal strain of grain is also measured by obtaining the approximated ellipse of strain distribution. The deformation of grains dependent on their initial orientation and the rotation of the principal strain during uniaxial tension are clarified.
キーワード Polycrystalline Copper Plastic Deformation SEM EBSD Method Grain Orientation Crystal Orientation Map
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 2001-12
36巻
1号
開始ページ 1
終了ページ 6
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120003497021
JaLCDOI 10.18926/14135
フルテキストURL Mem_Fac_Eng_39_1_7.pdf
著者 王 暁群| 阿部 武治| 多田 直哉| 清水 一郎|
抄録 Roughening on free surface of polycrystalline metal during plastic deformation is closely related to the inhomogeneous deformation in the respective grain at the surface. Uniaxial tensile tests are carried out on annealed pure aluminum sheet specimens with various averaged grain sizes. The roughening is measured by a 3-dimensional stylus instrument to examine the roughness change in both sides of specimen surfaces at each strain. The irregularities on one side are reversed on the backside, when the averaged grain size is as large as the thickness of the specimen. Discussions are made on the relation between the surface shapes of both sides adopting the cross correlation factor. The strains of respective grains are also measured from the grain boundary shape before and after plastic deformation. There are some deviations in the strains of the grains and their standard deviation increases with the applied strain.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 2005-01
39巻
1号
開始ページ 7
終了ページ 15
ISSN 0475-0071
言語 English
論文のバージョン publisher
NAID 120002308149