Fe－P－N合金的Snoek－K－Koster峰

Snoek-K -K ster Peak of Fe-P-N Alloy

对淬火及淬火后变形Ｆｅ－Ｐ－Ｎ合金在－５０℃～３５０℃温度区的内耗进行了测量，并用ＴＥＭ观察、分析了合金中的第二相．结果表明，在Ｎ的质量分数不超过０．００３％和Ｐ的质量分数小于０．０６４％的实验条件下，合金的ＳＫＫ峰与Ｓｎｏｅｋ峰的峰高比（ｈＳＫＫ／ｈＳｓ）和Ｃｐ－２／３呈线性关系；在Ｆｅ－Ｐ合金固溶体区中有ＦｅＰ化合物存在．

The Snoek and Snoek-Ke-Koster(SKK)peaks of Fe-P-N alloy were studied in the temperature range from-50℃-350℃.The.second phase was investigated with TEM. The practical results indecate that,under a lower N and P concentration(N M 0.0003%,PM 0.064%),the peakheight ratio of SKK to Snoek(hSKK/hS)is linear with ,and the FeP compound in Fe-P solid solution ragion can be found in TEM.A theoretical interpretation of experimental results is also given in this article.