Low Temperature Nitriding of Commercially Pure Titanium with Harmonic Structure
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- KIKUCHI Shoichi
- Dept. Mechanical Engineering, Graduate School of Kobe University
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- NAKAMURA Yuta
- Dept. Mechanical Engineering, Graduate School of Ritsumeikan University
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- OTA Mie
- Dept. Mechanical Engineering, Ritsumeikan University
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- UENO Akira
- Dept. Mechanical Engineering, Ritsumeikan University
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- AMEYAMA Kei
- Dept. Mechanical Engineering, Ritsumeikan University
Bibliographic Information
- Other Title
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- 調和組織を有する工業用純チタンの低温窒化挙動
- チョウワ ソシキ オ ユウスル コウギョウヨウ ジュンチタン ノ テイオン チッカ キョドウ
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Description
<p>Commercially pure titanium with harmonic structure, which consists of a coarse-grained structure surrounded by a network structure of fine-grains, was produced by sintering mechanically milled powders to achieve high strength and high ductility. The effect of subsequent nitriding on the commercially pure titanium with harmonic structure was investigated. Nitriding was performed at relatively low temperatures of 773, 873 and 973 K (500, 600 and 700 °C). The surface microstructures of the nitrided specimens with harmonic structure were characterized using optical microscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), electron backscatter diffraction (EBSD), and a non-contact scanning white light interferometry. The nitrided titanium specimen with harmonic structure had higher hardness than a nitrided-only titanium specimen because the fine-grained structure in the harmonic structure accelerated the formation of titanium nitrides during nitriding. Furthermore, fine grains created by mechanical milling were not coarsened during the nitriding process. These results indicate that low temperature nitriding is effective to increase the surface hardness of commercially pure titanium with harmonic structure while grain-coarsening is also suppressed.</p>
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 63 (8), 731-738, 2016
Japan Society of Powder and Powder Metallurgy
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Details 詳細情報について
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- CRID
- 1390282681287199104
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- NII Article ID
- 130005253110
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 027541203
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed