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Carbon ion implantation surface modification of titanium

Wear is the main form of material failure,[link widoczny dla zalogowanych], so wear is to evaluate the importance of the human body implants materials performance network. Medical titanium implanted in the body fluid environments, therefore, evaluated in a simulated body fluid (SBF) in the friction and wear properties is particularly important. C-ion implanted titanium kinetic curves of friction coefficient shown in Figure 4. It can be seen, friction stabilized, the friction coefficient is not injected into the sample average of 0.33 or so. The C ion implantation was significantly lower than the friction coefficient of the sample into the sample and not bitter. Zhu {Lu 8'u mouth. 2 dioxin. ? 【workers _time / s Figure 4 into the energy of the friction coefficient versus time Fig. 4Changesofthefrictioncoefficientvaluesofvariousimplantedspecimens \Since the increase in the number of intermetallic compounds, the enhanced role of precipitation strengthening, so that modified alloy than the original alloy strength and hardness have been significantly improved. With the Al content to further enhance the black dendritic (Ni, Fe) A1 phase the number of further increased, the volume is gradually increased, as shown in Figure 3 (d) below. When the Al content of 20%, the transition matrix of eutectic Fe-Nl, as shown in Figure 3 (e) below. the (Ni , Fe) A1 intermetallic compound is brittle phase, alloys of plastic with the Al content decreased with the increasing fragility. 4 Conclusion (1) in the HP40 alloy, by increasing Al drop Ni,[link widoczny dla zalogowanych], alloys at room temperature strength and hardness have a significant improved. (2) With the Al content increased, due to precipitation of the branches (Ni.Fe) A1 intermetallic compounds further coarsening of the alloy and hardness increase was restricted and fragility. (3) at room temperature resistance Initial pressure test showed, Al modified alloys [} Al content of 5% to 10%,[link widoczny dla zalogowanych], the alloy most significant change in performance References: l】【MacNabAJ.Alloysforethylenecrackingfurnacetubes [J]-JdrocarbonProcessing ,1987.12:43-45. 【2] Wong Kin Yao, Li Hankang. superalloy 【M]. Beijing: Metallurgical Industry Press :2000.24-28. Field (continued from page l4) 【9] VivienteJL,[link widoczny dla zalogowanych], GarciaA, AlonsoF.eta1.X-rayphotoelectronspectrcopycharacterizationofhighdosecarbon-implantedsteelandtitaniumalloys 【 ],[Huang Yuan, et al. Tj implanted H13 steel surface modification 『J]. Metal Heat Treatment, 2006,3 l (6): 6l for a 65. 【12] KokuboT.SurfacechemistryofbioactiveglassceramicsJournalofNon-crystalSolids ,1990,120:138-151. i131 Wang Ming, Shi Qingnan, Yong-Jun Chen. ion implantation surface modification of materials i Pán 『J]. Yunnan Metallurgy, 2003,32 (2) :54-56. 【l4] Yong-Jun Chen, Shi Qingnan, left Xiao Qing, et al. metal surface A modified ion implantation,[link widoczny dla zalogowanych], including the development and should ffl [J1. Surface Technology, 2003,32 (6) :4-7. 【l5] Wang Yi-Hua, Hu Zhengqiong. ion implantation and analysis based 【M]. Beijing: Aviation Industry Press ,1992.2-10. Tin \
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