| 离子注入20钢表面层的性能及结构 |
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| 引用本文： | 张建华,屈世显,倪振文.离子注入20钢表面层的性能及结构[J].兵器材料科学与工程,1993,16(6):28-33. |
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| 作者姓名： | 张建华 屈世显 倪振文 |
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| 作者单位： | 西安石油学院7系608教研室，西安石油学院，西安石油学院 西安市 710061 |
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| 摘 要： | 在1.0×10~(17)至7.0×10~(17)ions/cm~2范围内等间隔选取七个注入剂量,用75keV氮离子疰入20钢,形成表面强化层。用TRIM算法计算了注入后的氮离子浓度分布及损伤分布,测试了注入前后材料表面硬度和摩擦性能的变化。X衍射结果表明,注入层出现γ′-Fe_2N和ε-Fe_3N-Fe_2N新相。辐射损伤、第二相。间隙固溶体等是引起表面强化的主要原因。
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| 关 键 词： | 离子注入 20钢 表面强化 |
PROPERTIES & STRUCTURE OF STRENGTHENING LAYERS FORMED BY ION IMPLANTATION IN 20 STEEL |
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| Zhang Jianhua,Qu Shixian,Ni Zhenwen.PROPERTIES & STRUCTURE OF STRENGTHENING LAYERS FORMED BY ION IMPLANTATION IN 20 STEEL[J].Ordnance Material Science and Engineering,1993,16(6):28-33. |
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| Authors: | Zhang Jianhua Qu Shixian Ni Zhenwen |
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| Abstract: | 20 steel was implanted with nitrogen ions whose energy was chosen at 75keV and dose range was limited from 1.0×10(?) to 7.0×10(?) ions/cm(?). The surface strengthening layers were formed after ion implantation. The distributions of concentration and damage were given by TRIM program. The surface hardness and friction coefficient were measured for implanted and unimplanted samples. It was detetced that there were γ'-Fe_3~-N and δ-Fe_3~-N-Fe_2~-N phases in implanted layers by X-ray diffraction. The strength was believed to increase because of radiant damage, the second phases and interstitial solid solutions, |
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| Keywords: | ion implantation 20 steel surface strengthening |
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