Improvement of chemical composition, structure and mechanical properties of heat-resistant chromium-nickel alloy

3rd International Youth Scientific Forum with International Participation "New Materials"

Varlamova, S.^1 ; Trushnikova, A.^1 ; Rumyantsev, B.^1 ; Butrim, V.^1 ; Simonov, V.^2

Open Joint Stock Company Kompozit, 4, Pionerskay, Korolev city, Moscow region, Russia^1

Bauman Moscow State Technical University, 5, ul. Baumanskaya 2-ya, Moscow, Russia^2

关键词: Base alloys;    Chemical compositions;    Degree of deformations;    Fracture zone;    Heat resistant;    Multi-component systems;    Structural component;    Thermo dynamic analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/347/1/012007/pdf
DOI  :  10.1088/1757-899X/347/1/012007

来源: IOP

【 摘 要 】

A thermodynamic analysis of a multicomponent system of the Cr-Ni alloy (Cr-32Ni-1,5W-0,25V-0,5Ti) with small additions of refractory metals was carried out. The microstructure and phase composition of the base alloy (I) and alloy with additional alloying (II) were studied. The effect of additives on the mechanical properties of the Cr-Ni alloy at 20, 900 and 1080 °C was shown. The microstructure of alloys I and II was studied in the fracture zone of samples after tensile tests at different temperatures. We studied the effect of small additives on the microstructure of alloys and changes in the morphology of the structural components (phases) as a function of temperature and degree of deformation.