研究各向异性材料晶界扩散率的实验方法

Scripta Metallurgica et Materialia Pub Date : 1995-12-15 DOI:10.1016/0956-716X(95)00377-8

O.B. Nasello, C.l. Di Prinzio, B.J.Gonzalez Kreigel

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引用次数: 1

摘要

研究表明，Di Prinzio等人提出的研究各向异性材料晶界扩散率的理论方法可以在实验中实现。该方法应用于冰双晶样品。结果表明，倾斜晶界< 101̄0 > /21°和< 101̄0 > /90°的扩散系数与晶界倾角有关。通常，作者认为，当遵循Sun和Bauer的方法研究晶界迁移时，b和F(α)总是可以确定的;值得注意的是，我们既没有得到Mγ(β)函数的值，也没有得到Mγ的平均值;而是发现了m - γ - eff。

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An experimental method to study grain boundary diffusivity in anisotropic materials

It has been shown that the theoretical treatment developed by Di Prinzio et al. to study the grain boundary diffusivity in anisotropic material can be experimentally implemented.

The method was applied to ice bicrystalline samples. The results obtained show that the diffusivity of tilt boundaries 〈101̄0〉/21 ° and 〈101̄0〉/90 ° depends on the grain boundary inclination.

As a rule, the authors suggest that when Sun and Bauer's method is followed to study grain boundary migration b and F(α) may always be determined; it should be kept in mind that, neither values of the Mγ(β) function nor the mean value of Mγ were obtained; instead $Mγ_{eff}$ was found.

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Scripta Metallurgica et Materialia

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