VOLUME HETERODIFFUSION OF TUNGSTEN IN FE-CR FERRITIC ALLOYS

被引：7

作者：

CERMAK, J

RUZICKOVA, J

POKORNA, A

机构：

[1] Institute of Physics of Materials, Academy of Sciences of the Czech Republic Zizkova 22, 616 62 Brno, CZ

来源：

SCRIPTA METALLURGICA ET MATERIALIA | 1995年 / 32卷 / 10期

关键词：

D O I：

10.1016/0956-716X(95)00023-O

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tracer diffusion of 181W in Fe - 8-12 %Cr alloys was measured by serial sectioning method. It was obtained that the variation of Cr concentration in the range from 8 to 12 wt. % or additions of carbon up to 0.17 wt.%, or low alloying with other elements (see Tab.1) has not any significant effect on tungsten volume heterodifusion coefficient. The temperature dependence of obtained volume diffusion coefficients of tungsten shows the magnetic diffusion anomaly. It was fitted by semiempiric Eq.(2) proposed by Jönsson that can be taken as a convenient interpolation formula for rapid calculations of W diffusivities in 8-12 %Cr ferritic steels in engineering practice. © 1995.

引用

页码：1631 / 1635

页数：5

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