Structural Features of Cast Refractory Alloy HP40NbTi High-Temperature Oxidation. Part I. Evolution of Microstructure and Phase Composition

被引:1
|
作者
Kondrat'ev, S. Yu. [1 ]
Petrov, S. N. [1 ,2 ]
Anastasiadi, G. P. [1 ]
Tsemenko, A. V. [1 ,2 ]
机构
[1] Peter Great Polytech Univ, St Petersburg, Russia
[2] Kurchatov Inst, IV Gorynin TsNII KM Natl Res Ctr, St Petersburg, Russia
关键词
cast heat-resistant alloys; microstructure; phase composition; high-temperature oxidation; oxidation kinetics; OXIDIZING/CARBURIZING ENVIRONMENT; NIOBIUM CARBIDE; HK40; ALLOY; TRANSFORMATIONS; KINETICS; YTTRIUM; CRYSTALLOGRAPHY; 45KH26N33S2B2; MORPHOLOGY; MECHANISM;
D O I
10.1007/s11041-020-00510-7
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
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.
引用
收藏
页码:35 / 45
页数:11
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