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Phase Composition Using a Variable Magnetic Field

机译：使用可变磁场的相组成

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In the present work the application of the variable magnetic field to investigate the composition of phases present in the alloys is presented. In order to make a study in the variable magnetic field a prototype apparatus was performed. The magnetic leakage of the alloy (k_(s)) was measured in the reversible range of magnetic field.Experimental tests were conducted on samples of Fe–Cu alloys have contained the different volume fraction of phases components. Comparison of volume fraction of the solid solution α _(Fe) determined by weight and magnetic methods was performed. The linear dependence between the magnetic coupling and the volume fraction of phases components was observed. This observation can be used to estimate the quantitative phase composition in a biphase alloys. It has been shown that in the reversible range of the magnetic field, the magnetic leakage of the alloy is equal to the sum of products of volumetric proportions of individual phase components and their magnetic leakage.In the present work a new method for quantitatively assessing the phase composition using a variable magnetic field is presented which is universal for two-phase alloys if the two phases have different magnetic leakage. This can be particularly useful for assessing the proportion of austenite and retained austenite in heat-treated alloys of iron and carbon.
机译：在本工作中，提出了使用可变磁场来研究合金中存在的相组成的方法。为了在可变磁场中进行研究，进行了原型装置。在磁场的可逆范围内测量了合金的漏磁（k_（s））。对Fe-Cu合金样品中包含不同体积分数的相成分进行了实验测试。进行了通过重量法和磁性法测定的固溶体α_（Fe）的体积分数的比较。观察到磁耦合与相成分的体积分数之间的线性相关性。该观察结果可用于估计双相合金中的定量相组成。研究表明，在磁场的可逆范围内，合金的磁漏量等于各相成分的体积比与其磁漏量的乘积之和。提出了使用可变磁场的两相组成，如果两相的漏磁不同，则这对于两相合金是通用的。这对于评估铁和碳的热处理合金中奥氏体和残余奥氏体的比例特别有用。

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