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304 stainless steel commonly used in ordinary chemical equipment, food production equipment and other aspects of nuclear energy, industrial production is widely used in stainless steel and heat-resistant steel one. However, since the 304 stainless steel surface hardness, abrasion wear performance does not meet many of the more harsh environment industrial production needs, so its surface modification treatment is particularly important. In this paper, 304 stainless steel friction and wear issues Ti, N ion implantation research, its surface hardness and wear resistance were tested, and the friction and wear performance enhancement to make an analysis. Ti and N ion implantation 304 0.5 N load in surface hardness than not inject the sample, and with the implantation dose increases, in order to increase its hardness, which inject a dose of 7? 10 17 ions / cm2 microhardness maximum HV0.02 N = 320.1 MPa. Ti and N implanted sample at a load of 5 N, sliding time of 20 min, the sliding speed of 500 r / m of dry friction conditions were not injected with superior wear resistance of 304 stainless steel, of which 7 × 10 17 ions / cm2 dose reaches the minimum value of the coefficient of friction of 0.303, 0.403 lower than that injected samples. From the worn surface was observed by SEM analysis concluded that the sample is not injected at 5 N load undergone severe plastic deformation, wear scar wider, there is a clear shedding phenomenon, and ion implantation depth of the specimen wear scar width of less than a small amount of wear decreased by approximately 17%. Also the wear surface of the sample before injection mechanism from the abrasive wear and adhesive wear coexistence of two mechanisms to adhesive wear and oxidation wear transition, this adhesion to scratch the surface oxidation wear played a certain role in lubrication, is a high- dose fluctuating friction coefficient decreases the main reason. XRD analysis showed that the sample is not injected mainly by FeCr 0.29 Ni 0.16 C 0.06 phase composition, and different samples are injected dose detected TiO 2 oxide and TiN phase, but there are differences element content, and with the increase of the implantation dose increases, the diffraction peak intensity is significantly enhanced. In addition, XPS analysis showed that the Ti element into at 463.5 eV, respectively, and 457.8 eV peak appears, corresponding TiO 2 phase and TiN phase and phase as TiON TiO 2 binding energy peak very close, and therefore can not determine whether the time has been forming part TiON phase; into the N-elements are at 399.3 eV and 395.9 eV, there were two peaks, after the fitted respectively correspond to N - O keys and TiN phase, indicating that the 304 stainless steel surface with a certain thickness of the TiO 2 - TiON - TiN gradient structure.
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