Ranking materials technologies by limiting characteristics of heat-resistant alloys and their longevity in the problems of import substitution

The structural strength properties determined by the true stress-deformation diagram and the fatigue characteristics of materials at combined action (tension and bending) under the conditions of temperature change are used to substantiate materials and technologies. The domestic alloy is suggested a...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 570; no. 1; pp. 12070 - 12076
Main Authors Murataev, F I, Galimov, E R, Galimova, N Ya
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.07.2019
Subjects
Alloys
Bending fatigue
Gas turbines
Heat resistant alloys
Metal fatigue
Rotor blades
Rotor blades (turbomachinery)
Stability criteria
Structural stability
Structural strength
True stress
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Summary:The structural strength properties determined by the true stress-deformation diagram and the fatigue characteristics of materials at combined action (tension and bending) under the conditions of temperature change are used to substantiate materials and technologies. The domestic alloy is suggested as an alternative to imported heat-resistant alloy IN-738LC used to manufacture the turbine rotor blades of stationary gas turbine plants (GTP). Expressions to determine the fatigue characteristics according to the criteria of structure stability are presented.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/570/1/012070