Use of Internal Friction Measurements in the Study of Martensite (in Fe-Ni and Fe-Ni-C Alloys).

被引：0

作者：

Conofagos, E.

Hyspecka, L.

Plusquellec, J.

Azou, P.

Bastien, P.

机构：

来源：

Memoires Scientifiques de la Revue de Metallurgie | 1974年 / 71卷 / 03期

关键词：

MARTENSITE TRANSFORMATION;

D O I：

暂无

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学科分类号：

摘要：

Experimental data for Fe-24. 5Ni-0. 43D and Fe34Ni alloys (some of than previously reported) show that the martensitic transformation of the Fe-Ni-C alloy causes a sudden, temporary increase of internal friction. Heating of the martensite results in a peak (110 Hz, 223 K) observed only in the presence of carbon and in martensite just recently quenched. This peak may be explained by a hypothesis according to which it would be due to formation of Snoek carbon atmospheres around originally mobile dislocations. For a constant rate of temperature increase, the height of this peak depends on the density of mobile dislocations and the concentration of mobile carbon.

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页码：139 / 144