Investigation on the tribology of Zr ion implanted tool steel |
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| Affiliation: | 1. Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai JiaoTong University, Shanghai 200240, China;2. State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;3. Department of Implant Dentistry, Shanghai Ninth People''s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200240, China;4. School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China;1. Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston 60208, IL, USA;2. Northwestern University Center for Atom Probe Tomography, Northwestern University, 2220 Campus Drive, Evanston 60208, IL, USA;3. NanoAl LLC, 8025 Lamon Avenue, Skokie 60077, IL, USA |
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| Abstract: | AISI D3 tool steel was ion implanted with zirconium and the improvement in surface tribological properties investigated. The Zr ion implantation was done using a metal vapor vacuum arc (Mevva) broad-beam ion source, with a mean ion energy of 130 keV and at doses of 3.6×1016, 5×1016 and 1×1017 ions/cm2. Wear, friction and hardness of the implanted samples were measured and compared to the performance of unimplanted steel. The wear resistance was increased by about a factor of two, the friction remained about the same or was possibly increased by a small amount and the near-surface hardness was improved by a factor of five or more by the ion implantation. We also investigated the effect on the Zr implantation profile of the multi-component energy distribution of the ion beam. |
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