{"title":"STRUCTURE AND PROPERTIES OF AFA STEEL FE-NI-CR-AL WITH VARIABLE ALUMINUM CONTENT","authors":"O.M. Velikodny, I.V. Kolodyi, M. Tikhonovsky, I.P. Kislyak, Y.O. Krainiuk, O.C. Tortika","doi":"10.46813/2024-150-062","DOIUrl":null,"url":null,"abstract":"Aluminum-containing austenitic steels (AFA steels), which may be promising for use as structural materials in nuclear reactors with liquid metal coolant, are investigated. Six ingots of alloys with variable aluminum content were obtained by the method of arc melting in an inert environment. After homogenizing annealing and cold deformation by rolling, samples for mechanical tests and structural investigaion were made from the obtained strips, which were subjected to final annealing at the temperature standard for austenitic steels of 1050 °С. It was found that the maximum values of the yield strength and the ultimate tensile strength are observed at the aluminum content of 3.5 wt.%. It is significant that when the aluminum content is increased to 4 wt.%, the strengths and plasticity decrease. This behavior is associated with structural changes in steel.","PeriodicalId":54580,"journal":{"name":"Problems of Atomic Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Problems of Atomic Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.46813/2024-150-062","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
Aluminum-containing austenitic steels (AFA steels), which may be promising for use as structural materials in nuclear reactors with liquid metal coolant, are investigated. Six ingots of alloys with variable aluminum content were obtained by the method of arc melting in an inert environment. After homogenizing annealing and cold deformation by rolling, samples for mechanical tests and structural investigaion were made from the obtained strips, which were subjected to final annealing at the temperature standard for austenitic steels of 1050 °С. It was found that the maximum values of the yield strength and the ultimate tensile strength are observed at the aluminum content of 3.5 wt.%. It is significant that when the aluminum content is increased to 4 wt.%, the strengths and plasticity decrease. This behavior is associated with structural changes in steel.
期刊介绍:
The journal covers the following topics:
Physics of Radiation Effects and Radiation Materials Science;
Nuclear Physics Investigations;
Plasma Physics;
Vacuum, Pure Materials and Superconductors;
Plasma Electronics and New Methods of Acceleration.