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对高能Ti离子注入H13钢的强化机理进行了详细的研究。利用离子注入精确可控,掺杂不受固溶度和材料温度限制的特点,详细研究了H13钢中离子注入各种强化机理的作用。结果证明,用离子注入可将几种强化效果同时用于H13钢强化,从而得到最佳的强化效果。低温、大注入量注入下,以位错强化、超饱和固溶强化为主,可使注入层强化效果提高。400℃加温下注入由于Fe_2Ti和TiC硬化弥散相的形成,强化效果进一步提高。硬度可提高3.2倍。抗磨损效果可提高11倍。注入样品退火可改善弥散强化的效果。
The strengthening mechanism of high energy Ti ion implanted H13 steel was studied in detail. Using ion implantation accurately controllable, doping from the characteristics of solid solubility and material temperature limit, a detailed study of the H13 steel ion implantation in a variety of strengthening mechanism. The results show that, with ion implantation can be used in several strengthening effect of H13 steel strengthening, resulting in the best enhancement. Under the condition of low temperature and large injection amount, dislocation strengthening and supersaturated solid solution strengthening are the main methods, which can improve the strengthening effect of the injection layer. The strengthening effect is further enhanced by the formation of a hardening disperse phase of Fe_2 Ti and TiC at a temperature of 400 ° C. Hardness can be increased by 3.2 times. Anti-wear effect can be increased 11 times. Annealing samples can improve the dispersion strengthening effect.