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ID 46996
フルテキストURL
著者
Li, Yan Graduate School of Natural Science and Technology Okayama University
Abe, Takeji Graduate School of Natural Science and Technology Okayama University
Tada, Naoya Graduate School of Natural Science and Technology Okayama University
Kanazawa, Masanori Graduate School of Natural Science and Technology Okayama University
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
発行日
2001-12
出版物タイトル
Memoirs of the Faculty of Engineering, Okayama University
36巻
1号
出版者
Faculty of Engineering, Okayama University
開始ページ
7
終了ページ
16
ISSN
0475-0071
NCID
AA10699856
資料タイプ
紀要論文
言語
English
論文のバージョン
publisher
査読
無し
Eprints Journal Name
mfe