Evolution of microstructures during cyclic and thermal stability of Ti-44Al-11Nb alloy

S. K. Varma, Erica L Corral, Carlos Hernandez, R. Mahapatra, W. E. Frazier

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

1 Citation (Scopus)

Abstract

A study has been conducted to determine the cyclic and static thermal stability of Ti-44Al-11Nb alloy in air in a range of temperature from 900 to 1000 °C. Weight gain method shows that the static oxidation rates are higher than cyclic oxidation rates under identical experimental conditions at a given temperature. The oxide layer at the surface penetrates the base metal in a direction parallel to the lamellae of the two phases, α2 and γ, confirmed by scanning electron micrographs. The thermal stability of up to 168 hours indicates that there are phase transformations taking placed affecting the microstructures in such a way that large amount of dislocation activities are involved.

Original languageEnglish (US)
Title of host publicationProceedings of the TMS Fall Meeting
PublisherMinerals, Metals & Materials Soc (TMS)
Pages15-20
Number of pages6
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 TMS Fall Meeting - Rosemont, IL, USA
Duration: Oct 11 1998Oct 15 1998

Other

OtherProceedings of the 1998 TMS Fall Meeting
CityRosemont, IL, USA
Period10/11/9810/15/98

Fingerprint

Thermodynamic stability
Oxidation
Microstructure
Phase transitions
Scanning
Temperature
Oxides
Electrons
Air
Metals

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Varma, S. K., Corral, E. L., Hernandez, C., Mahapatra, R., & Frazier, W. E. (1998). Evolution of microstructures during cyclic and thermal stability of Ti-44Al-11Nb alloy. In Proceedings of the TMS Fall Meeting (pp. 15-20). Minerals, Metals & Materials Soc (TMS).

Evolution of microstructures during cyclic and thermal stability of Ti-44Al-11Nb alloy. / Varma, S. K.; Corral, Erica L; Hernandez, Carlos; Mahapatra, R.; Frazier, W. E.

Proceedings of the TMS Fall Meeting. Minerals, Metals & Materials Soc (TMS), 1998. p. 15-20.

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

Varma, SK, Corral, EL, Hernandez, C, Mahapatra, R & Frazier, WE 1998, Evolution of microstructures during cyclic and thermal stability of Ti-44Al-11Nb alloy. in Proceedings of the TMS Fall Meeting. Minerals, Metals & Materials Soc (TMS), pp. 15-20, Proceedings of the 1998 TMS Fall Meeting, Rosemont, IL, USA, 10/11/98.
Varma SK, Corral EL, Hernandez C, Mahapatra R, Frazier WE. Evolution of microstructures during cyclic and thermal stability of Ti-44Al-11Nb alloy. In Proceedings of the TMS Fall Meeting. Minerals, Metals & Materials Soc (TMS). 1998. p. 15-20
Varma, S. K. ; Corral, Erica L ; Hernandez, Carlos ; Mahapatra, R. ; Frazier, W. E. / Evolution of microstructures during cyclic and thermal stability of Ti-44Al-11Nb alloy. Proceedings of the TMS Fall Meeting. Minerals, Metals & Materials Soc (TMS), 1998. pp. 15-20
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