Surface Modification of High-Speed Tool Steel by Repeated Irradiations of Intense Pulsed Ion Beam
スポンサーリンク
概要
- 論文の詳細を見る
Surface modification of a high-speed tool steel (SKH51) has been performed by irradiation of the proton intense pulsed ion beam (IPIB) with the ion energy of 180 keV, the ion current density of 460 A/cm2, and pulse duration of 65 ns. By 1-pulse irradiation of the IPIB, the second phase carbides such as VC, Fe6C, and Cr6C are dispersed from the irradiated surface, and the average grain size decreases to 240 nm corresponding to approximately 1/30 of the untreated one. Repeated irradiations of the IPIB result in the reduction in grain size and conversion of an $\alpha$-Fe structure to a $\gamma$-Fe one. The SKH51 treated by 10-pulses irradiation has a single phase of $\gamma$-Fe, and the grain size is reduced to approximately 1/170 of that of the untreated one. In addition, the 10-pulses-irradiated surface has an improved wear resistance.
- Publication Office, Japanese Journal of Applied Physics, Faculty of Science, University of Tokyoの論文
- 2001-02-28
著者
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Fujiwara Etsuo
Department Of Electric 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 Electric Engineering Himeji Institute Of Technology
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Yatsuzuka Mitsuyasu
Department Af Electric Engineering Himeji Institute Of Technology
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Yatsuzuka Mitsuyasu
Department of Electric Engineering, Himeji Institute of Technology, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
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Akamatsu Hiroshi
Department of Electric Engineering, Himeji Institute of Technology, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
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Tanihara Yoshisuke
Department of Electric Engineering, Himeji Institute of Technology, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
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Ikeda Tsutomu
Ion Engineering Research Institute Corporation, 2-8-1 Tsudayamate, Hirakata, Osaka 573-0128, Japan
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Fujiwara Etsuo
Department of Electric Engineering, Himeji Institute of Technology, 2167 Shosha, Himeji, Hyogo 671-2201, Japan
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