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您选择的条件: Accelarator Laboratories, School of Physics, Wuhan University, Wuhan, Hubei 430072, P. R. China(1)
  • 1. chinaXiv:201703.00559
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    Vacancy-type defect production in CLAM steel under He and H ion beams implantation studied with positron-annihilation spectroscopy

    分类: 物理学 >> 凝聚态:结构、力学和热性能 提交时间: 2017-03-26

    Yong Xin Xin Ju Jie Qiu Liping Guo Tiecheng Li Fengfeng Luo Peng Zhang Xingzhong Cao Baoyi Wang

    摘要:The vacancy-type defects induced by co-implantation of He and H ions in China Low Activation Martensitic (CLAM) steel at room temperature were investigated with a variable-energy position beam Doppler broadening spectra (DBS). The co- implantation contained two patterns: one was implanted by He ions firstly, and then followed by H-ions implantation; the other was implanted by H ions in the first place, after that followed by He-ions implantation. The S parameters of implanted samples became larger than un-implanted one under different implantation fluences, and the S parameters of pre-implanted H were larger than pre-implanted He regardless of fluence. The difference of S parameters between pre-implanted H and He decreased with increasing fluence. He-H-vacancy complex is the reason that the S parameter of pre-implanted H is higher than pre-implanted He

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