Surface treatment of steel by short pulsed injection of high-power ion beam
Surface treatment of steel by short pulsed injection of high-power ion beam
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DOI：
10.1016/s0257-8972(00)01029-x
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发表时间：
2001-02-02
影响因子：
5.4
通讯作者：
Yatsuzuka, M
中科院分区：
文献类型：
--
作者：
Akamatsu, H;Ikeda, T;Yatsuzuka, M
用离子能量为160keV、束流密度为500A/cm(2)、脉冲宽度(FWHM)为65 ns的高功率短脉冲氢离子束(PPIB)注入高速工具钢(SKH51)，在靶材表层形成MI尺寸的多晶奥氏体相。奥氏体相的平均晶粒度为40 nm，是注入PPIB前晶粒度的1/170。热影响深度从表面估计约为1.0微米，这与TRIM程序计算的离子范围很好地一致。(C)2001 Elsevier Science B.V.保留所有权利。
A hydrogen-high power and short pulsed ion beam (PPIB) with ion energy of 160 keV, ion beam current density of 500 A/cm(2) and pulse duration (FWHM) of 65 ns was injected into a high-speed tool steel (SKH51), producing an austenitic phase in MI-sized polycrystals on the surface layer of target. The average crystal size in the austenitic phase was estimated to be 40 nm, which is 1/170 of crystal size before the PPIB injection. The heat affected depth is estimated to be approrrimately 1.0 mum from the surface that is in good agreement with the ion range calculated by TRIM code. (C) 2001 Elsevier Science B.V. All rights reserved.