Nanocrystallization of Pure Titanium Surface by Intense Pulsed Ion Beam Irradiation(Instrumentation, Measurement, and Fabrication Technology)
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概要
- 論文の詳細を見る
A hydrogen intense pulsed ion beam (IPIB) with an ion energy of 180keV, ion current density of 460 A/cm^2, and pulse duration of 65 ns was irradiated on a pure titanium surface. A rapid heating and cooling treatment due to irradiation of the IPIB led to the formation of a nanocrystalline structure with the average grain size of 32 nm. The reduction in grain size resulted in the improvement of hardness and tribological property of the sample. The IPIB-irradiated Ti is 1.3 times harder than the non-irradiated one. The friction coefficient of pure Ti was reduced from 0.6 to 0.1 by IPIB-irradiation, and the IPIB-irradiated Ti maintained the low friction coefficient till 200 wear cycles. The calculated cooling rate of the IPIB-irradiated Ti, 3.0 × 10^7 K/s in the present experiment, is sufficiently high to form a nanocrystalline structure.
- 社団法人応用物理学会の論文
- 2002-01-15
著者
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Fujiwara Etsuo
Department Of Electric Engineering Himeji Institute Of Technology
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YATSUZUKA Mitsuyasu
Department of Electrical Engineering,Faculty of Engineering,Himeji Institute of Technology
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Akamatsu Hiroshi
Department Of Electric Engineering Himeji Institute Of Technology
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Azuma Kingo
Department of Electrical Engineering, Himeji Institute of Technology
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Azuma Kingo
Department Of Electric Engineering Himeji Institute Of Technology
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Yatsuzuka Mitsuyasu
Department Of Electric Engineering Himeji Institute Of Technology
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Yatsuzuka Mitsuyasu
Department Af Electric Engineering Himeji Institute Of Technology
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