摘要
探讨了 Ti 注入 H13钢时形成 Ti 和 Fe 合金相的规律以及 Ti 注入钢的硬化机理.根据辐射损伤理论给出了离子注入引起的空位和间隙原子产生率微分方程,并导出了平衡态时方程的解.研究了注量、能量和靶温对合金形成的影响.注入后退火的样品表面硬度可提高40～50%.用 X衍射和透射电子显微镜测量了 Fe_2Ti 和 FeTi 合金相.用维氏硬度计测量了上述诸条件下注入样品的表面硬度,用针盘磨损机测量了样品抗磨损特性.分析了这些合金相对表面硬化和抗磨损影响的机制.
The law of intermetallics formation of Ti implanted H13 steel is studied.The strengthening mechanism of intermetallics in steel is discussed. The differential equation of ion implantation for vacancies and interstitials and its solution are given.According to this analysis,the Ti implanted samples are obtained using different energy,dose and target temperature. The alloys of Fe_2Ti and FeTi are observed by X-ray diffraction and TEM. The hardness and wear-resistance of the samples are observed.The hardness increases by 40 to 60 per cent.The influence of annealing on intermetallics is given by TEM.The influence of the intermetallics on the strengthening of the samples is discussed.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
1990年第4期45-52,共8页
Journal of Beijing Normal University(Natural Science)
基金
"八六三"高科技研究资助项目
关键词
金属强化
离子注入
钛
合金相
硬化
Ti ion implantaion, alloy and intermetallics, strengthing mechanism of metal, wear resistance
