Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5350890 | Applied Surface Science | 2015 | 6 Pages |
Abstract
Ion implantation is an established technique for modifying the surface properties of a wide range of materials. In this research, temperature dependent surface modification induced by Fe-ion implantation in T91 steel was investigated. The T91 samples were implanted with 3.25 MeV Fe-ions to fluence of 1.7 Ã 1016 ions/cm2 at room temperature, 300 and 450 °C, respectively. After implantation, the T91 samples were characterized by means of positron annihilation Doppler broadening spectroscopy (PADBS) and nano-indention technology (NIT). It was found that the concentration of open-volume defects in T91 samples decreased with increasing implantation temperature. From NIT analysis, it was found that all the samples were hardened after implantation and the hardness of the implanted T91 samples increased with increasing implantation temperature.
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Authors
Huiping Zhu, Zhiguang Wang, Minghuan Cui, Bingsheng Li, Xing Gao, Jianrong Sun, Cunfeng Yao, Kongfang Wei, Tielong Shen, Lilong Pang, Yabin Zhu, Yuanfei Li, Ji Wang, Erqing Xie,