Optical and electron microscopy, x-ray spectral microanalysis, and thermogravimetric analysis in combination with differential scanning calorimetry are used to study the high-temperature oxidation behavior of alloy HP40NbTi of the Fe – 25Cr – 35Ni system prepared by static and centrifugal casting, and also oxidation process kinetics. It is shown that high-temperature oxidation of refractory alloy HP40NbTi is a complex physicochemical process that apart from temperature and time of the process is determined by the degree of alloy structure fineness.

中文翻译：

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铸造耐火合金 HP40NbTi 高温氧化的结构特征。第一部分。微观结构和相组成的演变

采用光学和电子显微镜、X射线光谱微量分析、热重分析结合差示扫描量热法研究了静态和离心铸造法制备的Fe-25Cr-35Ni系合金HP40NbTi的高温氧化行为。氧化过程动力学。结果表明，HP40NbTi难熔合金的高温氧化是一个复杂的物理化学过程，除温度和时间外，还取决于合金组织细度的程度。