Structural heterogeneity of reaction pipes from austenitic high-temperature alloys

International Workshop "Advanced Technologies in Material Science, Mechanical and Automation Engineering – MIP: Engineering – 2019"

材料科学;机械制造;原子能学

Afanasiev, S.V.^1 ; Ismaylov, O.Z.^2 ; Pyrkin, A.V.^2 ; Kravtsova, M.V.^1 ; Pisklova, O.P.^1

Togliatti State University, Togliatti

445020, Russia^1

LLC 'Reaction Pipes', Togliatti

445045, Russia^2

关键词: Austenitic heat-resistant steels;    Austenitic matrix;    High temperature;    Mechanical parameters;    Metal hardening;    Reaction tubes;    Reforming furnace;    Structural heterogeneity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/537/2/022049/pdf
DOI  :  10.1088/1757-899X/537/2/022049

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The article deals with the formulation of austenitic heat-resistant steels and its influence on the structural heterogeneity of reaction pipes based on them for reforming furnaces manufactured by centrifugal casting. Using highly informative methods, the formation of two intermetallide phases in the austenitic matrix, performing the function of metal hardening at high temperatures, is shown. Their composition was determined, the heterogeneity of the distribution along the length of the reaction tube and, as a result, the variation of the values of mechanical parameters were shown.