THE VOID EFFECT OF MEVVA W ION IMPLANTATION ON THE TRIBOLOGICAL PROPERTIES OF H13 STEEL

Jianhua Yang and Tonghe Zhang
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Jianhua Yang: Department of Physics, Nantong Institute of Technology, Jiangsu, 226007, P.R. China;
Tonghe Zhang: Radiation Beam and Materials Engineering Lab, Beijing Normal University, Beijing 100875, P.R. China

Surface Review and Letters (SRL), 2004, vol. 11, issue 04n05, 363-366

Abstract: H13 steel samples were implanted with tungsten using a metal vapor vacuum arc (MEVVA) ion source, with an implantation dose of1×1017cm-2, an extraction acceleration of 30 kV and pulsed ion beam fluxes of between0.3mA·cm-2and6mA·cm-2. The surface mechanical properties and microstructure for the W-implanted samples was characterized by the Rutherford backscattering spectroscope (RBS) and a high voltage electron microscope (HVEM). Experimental results of wear and hardness indicated that the hardness and wear of H13 steel increased when the voids were produced by tungsten ion implantation with a high pulsed current density. Forming causes for voids and their influence on the tungsten concentration depth profile in the implanted H13 steel and the surface mechanical properties were discussed in terms of spike theory.

Keywords: MEVVA ion implantation; void; tribological properties (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1142/S0218625X04006293

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