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研究了磷对ＩＮ７１８ 合金蠕变性能的影响． 结果表明， 磷显著提高蠕变抗力．磷对应力指数没有明显的影响，掺杂０．０２％ 磷使表观蠕变激活能由６７８ ．５ｋＪ／ｍｏｌ 提高至７４６．１ｋＪ／ｍｏｌ．磷的有益作用可能是通过抑制晶界扩散实现的．
The effect of phosphorus on the creep properties of IN718 alloy was studied. The results show that phosphorus significantly enhances creep resistance. Phosphorus does not have a significant effect on the stress index. Doping with 0.02% phosphorous resulted in an apparent creep activation energy of 678. 5kJ / mol to 746.1kJ / mol. The beneficial effects of phosphorus may be achieved by inhibiting grain boundary diffusion.