Specificity of application of X-ray methods of «swing» and Laue in determining the quality of the structure of castings of nickel heat-resistant alloys

Kuzmina N.A., Lifshitz V.A., Potrakhov E.N., Potrakhov N.N.
UDC
539.26
DOI
10.18577/2307-6046-2021-0-8-75-83
Article PDF (Russian) (684.56 KB)
How to cite
Kuzmina N.A., Lifshitz V.A., Potrakhov E.N., Potrakhov N.N. Specificity of application of X-ray methods of «swing» and Laue in determining the quality of the structure of castings of nickel heat-resistant alloys // Proceedings of VIAM. 2021. No. 8. DOI: 10.18577/2307-6046-2021-0-8-75-83. URL: https://test.viam.ru/en/journal/2021/8/9
Keywords
single crystal, crystallographic orientation, subgrain disorientation, lauegram, x-ray diffraction, production technology of single crystal casting.
Abstract

Systematically analyzes and justifies the characteristics of equipment operating in monochromatic radiation by the «swing» method and in polychromatic radiation by the Laue method in relation to the specifics of controlled samples in the technology of single-crystal casting from nickel heat-resistant alloys. The main application of the «swing» method is the mass control of seed blanks, seedings, growth cones of samples and blades. The main application of the Laue method is local measurements of block misorientation in the casting of the turbine blade, determination of the crystallographic orientation misorientation in controlled areas on the blade. An optimized configuration is proposed for a compact modification of a diffractometer operating in monochromatic radiation for mass control of the structure in production.

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