| Effect of void formation during MEVVA tungsten ion implantation on the microstructure and surface properties of H13 die steel |
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| 作者姓名： | 杨建华 张通和 |
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| 作者单位： | Department of Physics, Nantong University, Jiangsu 226007, China; Key Lab of ASIC Design, Nantong University, Jiangsu 226007, China; Radiation Beam and Materials Engineering Lab, Beijing Normal University, Beijing 100875, China;Radiation Beam and Materials Engineering Lab, Beijing Normal University, Beijing 100875, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 59671051) and Nantong University. |
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| 摘 要： | H13 die steel was implanted with tungsten using a metal vapour vacuum arc (MEVVA) ion source. When the pulsed beam current density of tungsten ions increased to 6mA?cm-2, some voids appeared in the high voltage electron microscope (HVEM) micrograph, which would disappear at an annealing temperature of 600℃. HVEM and x-ray diffraction were used for observing the phase structure of the annealed and un-annealed H13 steel after the steel was implanted. Results of wear and hardness tests indicated that whether the voids appear significantly influences the hardness and wear of H13 steel. Reasons for the formation of voids and the relation between the surface mechanical property and voids are discussed in terms of collision theory.
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| 关 键 词： | 离子注入 退火磨损 高压电子显微镜 H13钢材 微结构 硬度 |
| 收稿时间： | 2004-07-15 |
| 修稿时间： | 9/6/2004 12:00:00 AM |
Effect of void formation during MEVVA tungsten ion implantation on the microstructure and surface properties of H13 die steel |
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| Yang Jian-Hua and Zhang Tong-He.Effect of void formation during MEVVA tungsten ion implantation on the microstructure and surface properties of H13 die steel[J].Chinese Physics B,2005,14(3):556-559. |
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| Authors: | Yang Jian-Hua and Zhang Tong-He |
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| Institution: | Department of Physics, Nantong University, Jiangsu 226007, China; Key Lab of ASIC Design, Nantong University, Jiangsu 226007, China; Radiation Beam and Materials Engineering Lab, Beijing Normal University, Beijing 100875, China; Radiation Beam and Materials Engineering Lab, Beijing Normal University, Beijing 100875, China |
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| Abstract: | H13 die steel was implanted with tungsten using a metal vapour vacuum arc (MEVVA) ion source. When the pulsed beam current density of tungsten ions increased to 6mA?cm-2, some voids appeared in the high voltage electron microscope (HVEM) micrograph, which would disappear at an annealing temperature of 600℃. HVEM and x-ray diffraction were used for observing the phase structure of the annealed and un-annealed H13 steel after the steel was implanted. Results of wear and hardness tests indicated that whether the voids appear significantly influences the hardness and wear of H13 steel. Reasons for the formation of voids and the relation between the surface mechanical property and voids are discussed in terms of collision theory. |
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| Keywords: | ion implantation annealing void wear MEVVA |
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