A study of recrystallization and phase transitions in intermetallic titanium aluminides by in-situ high-energy X-ray diffraction

K. D. Liss*, A. Bartels, H. Clemens, S. Bystrzanowski, A. Stark, T. Buslaps, F. P. Schimansky, R. Gerling, A. Schreyer

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

High-energy synchrotron X-ray diffraction is a novel and powerful tool for bulk studies of materials. In this study, it is applied for the investigation of an intermetallic γ-TiAl based alloy. Not only the diffraction angles, but also the morphology of reflections on the Debye-Scherrer rings are evaluated in order to approach lattice parameters and grain sizes as well as crystallographic relationships. An in-situ heating cycle from room temperature to 1362 °C has been conducted starting from massively transformed γ-TiAl which exhibits high internal stresses. With increasing temperature the occurrence of strain relaxation, chemical and phase separation, domain orientations, phase transitions, recrystallization processes, and subsequent grain growth can be observed. The data obtained by high-energy synchrotron X-ray diffraction, extremely rich in information, are interpreted step by step.

Original languageEnglish
Title of host publicationSupplement to THERMEC 2006, 5th International Conference on PROCESSING and MANUFACTURING OF ADVANCED MATERIALS, THERMEC 2006
PublisherTrans Tech Publications Ltd
Pages1519-1524
Number of pages6
EditionPART 2
ISBN (Print)0878494286, 9780878494286
DOIs
StatePublished - 2007
Externally publishedYes
Event5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006 - Vancouver, Canada
Duration: 4 Jul 20068 Jul 2006

Publication series

NameMaterials Science Forum
NumberPART 2
Volume539-543
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
CountryCanada
CityVancouver
Period4/07/068/07/06

Keywords

  • Grain growth
  • In-situ experiment
  • Phase transformation
  • Recrystallization
  • Synchrotron radiation
  • Titanium aluminides

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