IMPACT OF CARBON ON THE STRUCTURE AND THERMAL PROPERTIES OF NEW CARBON SUPERINVAR ALLOYS
AbstractSuper-invar alloys based on Fe-Ni-Co with additions of carbon in wide range (0,6%, 0,8% and 1,7% С) have been investigated. Metallography analysis showed that graphite phase distributed throughout the volume of alloy in a fine state. Moreover, the size of graphite inclusions rises with the increasing of the total contents of carbon. It is showed, that after a heat treatment the morphology of graphite phases may change. Thermal analysis revealed that it is necessary to up the temperature of annealing unto 800°С because at that temperature the graphitization processes proceeds more fully. It is also showed that after annealing (800°С, 3h) investigated alloys induce minimal thermal expansion (a20-100 < 1,5×10-6К-1).
The authors who publish their manuscripts in “Vektor Nauki of Togliatti State University” Journal agree that:
- When submitting a manuscript to the Editors of “Vektor Nauki of Togliatti State University” Journal, the author accepts that the Editors have the exclusive property rights for the paper use (material submitted to the Editors including such protected by the copyright law objects as figures, charts, tables, etc.), including the rights for reproduction in print and on the Internet; distribution; translation of the materials into English.
- The author guarantees that (s)he has exclusive copyright for the material submitted to the Editors. Shall this guarantee be violated and shall the Editors receive any complaints or claims as a result, the Author shall settle all claims and complaints at his/her own and at his/her expense. The Editors shall not be held liable to a third party for violation of the guarantees given by the Author.
- The Author shall retain the right to use his/her published material, its fragments and paragraphs for personal and teaching purposes. Copying the materials published in the journal can only be allowed to other individuals or legal entities by a written consent from the Editors with a reference to the particular issue (year of publishing) in which the material was published.