Effect of Si and Ge addition on the evolution of microstructure in near alpha titanium alloy

K. S. Suresh, T. Kitashima, Yoko Mitarai

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

Abstract

The present study aims to understand the effect of Si and Ge addition on the evolution of microstructure in near alpha titanium alloys. An alloy of nominal composition Ti-5Al-2Sn-4Zr-2Mo with different amount of Si and Ge were prepared. Owing to the different processing conditions, precipitates were of wide size distribution. They formed mostly at grain boundaries, few at grain interior as well. Precipitates were of either Ti5Si3 or Ti5Ge3 type with large variation in the solute content, suggesting that they are off-stoichiometric. Precipitate morphology varied from fine equi-axed to large, elongated shape with planar interface. Both Si and Ge have a substantial influence on the evolution of grain size. Transmission electron microscope investigation of alloys displayed prominent occurrence of widely spaced intense slip in the hot rolled material.

Original languageEnglish
Title of host publicationTHERMEC 2013 Supplement
PublisherTrans Tech Publications
Pages744-748
Number of pages5
ISBN (Print)9783038350743
DOIs
Publication statusPublished - 2014 Jan 1
Externally publishedYes
Event8th International Conference on Processing and Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, THERMEC 2013 - Las Vegas, NV, United States
Duration: 2013 Dec 22013 Dec 6

Publication series

NameAdvanced Materials Research
Volume922
ISSN (Print)1022-6680

Other

Other8th International Conference on Processing and Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, THERMEC 2013
CountryUnited States
CityLas Vegas, NV
Period13/12/213/12/6

Keywords

  • Microstructure
  • Misorientation distribution
  • Titanium alloy

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Suresh, K. S., Kitashima, T., & Mitarai, Y. (2014). Effect of Si and Ge addition on the evolution of microstructure in near alpha titanium alloy. In THERMEC 2013 Supplement (pp. 744-748). (Advanced Materials Research; Vol. 922). Trans Tech Publications. https://doi.org/10.4028/www.scientific.net/AMR.922.744