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研究了变形Ｆｅ－Ｐ－Ｎ合金的内耗和沉淀，发现含置换元素磷的三元系铁的ｈｈＳＫＫ／ｈＳ比值不是给定值，而是磷含量的函数．在ｃＮ≤０．００３质量百分数％，ｃＰ≤０．０６４质量百分数％时，存在关系式ｈｈＳＫＫ／ｈＳ＝Ｋ１ｃ（－２／３）Ｐ＋Ｋ２，截距Ｋ２产生的原因是由于固溶合金基体中存在磷原子对和气团．
The internal friction and precipitation of the deformed Fe-P-N alloy were investigated. It was found that the hhSKK / hS ratio of the ternary iron with replacement element P is not a given value but a function of phosphorus content. When cN is less than 0.003 mass% and cP is less than or equal to 0.064 mass%, the relationship hhSKK / hS = K1c (-2/3) P + K2 exists. The reason for the intercept K2 is that due to the existence of the solid solution alloy matrix P atom pair and air mass.