背散射分析钇离子注入H_(13)钢的抗氧化特性

Oxidation resistance property of Y^+ implanted H_(13) steel analysed by ion backscattering

用背散射技术测量了不同注入剂量和大束流密度的Y^+注入H_(13)钢的浓度分布,并研究了注入样品的抗氧化特性。结果表明,Y的浓度分布和峰值浓度的变化与注入剂量和束流密度密切相关。Y峰值浓度大小对抗氧化特性有直接的影响。Y^+注入钢改变了钢的氧化模式。氧的扩散受到控制。高温(800℃)氧化10min即可形成抗氧化的氧化皮。Y^+的注入可使氧化速率下降8倍。

The oxidation resistance property of Y+ implanted H13 steel has been studied by ion backscattering. The Y concentration profiles were measured for Y+ implantation with various doses and current densities. The results show that the Y concentration profiles and peak concentrations are closely related with dose and current density. The oxidation resistance property is powerfully influenced by Y peak concentration. The oxidation model of H13 steel is modified due to the Y+ implantation. The oxygen diffusion is controlled. The oxidation barrier is formed after high temperature oxidation (800℃) for 10min and the oxidation speed is decreased by a factor of 8.