Role of thermal expansion and redistribution of components on the temperature dependence of the lattice misfit in γ/γ′ superalloys

Oleg Y. Kontsevoi, Yuri N. Gomostyrev, Arthur J Freeman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The relative role of thermal expansion and redistribution of alloy components in the temperature dependence of the lattice misfit in γ/γ′ alloys is investigated on the basis of ab initio calculations. We show that in a wide temperature region up to approximately 0.6-Tmelt, the lattice misfit is determined by the difference in thermal expansion of γ and γ′ phases and shows only a slight variation. For higher temperatures the redistribution of the major alloy components between the phases becomes a leading contribution to the lattice misfit.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages505-510
Number of pages6
Volume980
Publication statusPublished - 2007
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 27 2006Nov 30 2006

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/27/0611/30/06

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Superalloys
Thermal expansion
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Kontsevoi, O. Y., Gomostyrev, Y. N., & Freeman, A. J. (2007). Role of thermal expansion and redistribution of components on the temperature dependence of the lattice misfit in γ/γ′ superalloys. In Materials Research Society Symposium Proceedings (Vol. 980, pp. 505-510)

Role of thermal expansion and redistribution of components on the temperature dependence of the lattice misfit in γ/γ′ superalloys. / Kontsevoi, Oleg Y.; Gomostyrev, Yuri N.; Freeman, Arthur J.

Materials Research Society Symposium Proceedings. Vol. 980 2007. p. 505-510.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kontsevoi, OY, Gomostyrev, YN & Freeman, AJ 2007, Role of thermal expansion and redistribution of components on the temperature dependence of the lattice misfit in γ/γ′ superalloys. in Materials Research Society Symposium Proceedings. vol. 980, pp. 505-510, 2006 MRS Fall Meeting, Boston, MA, United States, 11/27/06.
Kontsevoi OY, Gomostyrev YN, Freeman AJ. Role of thermal expansion and redistribution of components on the temperature dependence of the lattice misfit in γ/γ′ superalloys. In Materials Research Society Symposium Proceedings. Vol. 980. 2007. p. 505-510
Kontsevoi, Oleg Y. ; Gomostyrev, Yuri N. ; Freeman, Arthur J. / Role of thermal expansion and redistribution of components on the temperature dependence of the lattice misfit in γ/γ′ superalloys. Materials Research Society Symposium Proceedings. Vol. 980 2007. pp. 505-510
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