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

International Scientific-Technical Conference on Innovative Engineering Technologies, Equipment and Materials 2018

材料科学;工业技术（总论）

Murataev, F.I.^1 ; Galimov, E.R.^1 ; Galimova, N Ya^1

Kazan National Research Technical University Named after A.N. Tupolev, K. Marx street 10, Kazan, Tatarstan

420111, Russia^1

关键词: Fatigue characteristics;    Materials and technologies;    Materials technology;    Stationary gas turbines;    Structural strength;    Structure stability;    Temperature changes;    Turbine rotor blade;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/570/1/012070/pdf
DOI  :  10.1088/1757-899X/570/1/012070

来源: IOP

【 摘 要 】

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.