Microstructure evolution and meta-dynamic recrystallization behavior of ti-45al-8.5nb-0.2w-0.2b-0.3y alloy during inter-pass annealing after deformation

Lin Xiang, Bin Tang, Jianquan Tao, Qiang Chen, Zhihui Xing, Shiqing Gao, Ming Li, Jinshan Li

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

Abstract

The effect of processing parameters on meta-dynamic recrystallization (MDRX) and the microstructural characteristics evolution of TiAl alloy with high Nb containing during annealing period were studied through double-pass hot compression tests. The results indicated that the occurrence of MDRX had a strengthening effect to flow behavior of the present alloy, resulting in grain equalization. And the high temperature and large strain were beneficial for the occurrence of MDRX, resulting in the increase of recrystallization grains. For the present alloy, MDRX rate is low, hence, enough annealing time is needed for MDRX during inter-pass annealing. Besides, dislocation density is consumed with the occurrence of MDRX.

Original languageEnglish
Title of host publicationFunctional and Functionally Structured Materials V
EditorsYafang Han
PublisherTrans Tech Publications Ltd
Pages108-113
Number of pages6
ISBN (Print)9783035717389
DOIs
StatePublished - 2021
Event21st Chinese Materials Conference, CMC 2020 - Virtual, Online
Duration: 17 Nov 202022 Nov 2020

Publication series

NameMaterials Science Forum
Volume1035 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference21st Chinese Materials Conference, CMC 2020
CityVirtual, Online
Period17/11/2022/11/20

Keywords

  • Annealing
  • Hot deformation
  • Meta-dynamic recrystallization
  • Microstructure
  • TiAl alloys

Fingerprint

Dive into the research topics of 'Microstructure evolution and meta-dynamic recrystallization behavior of ti-45al-8.5nb-0.2w-0.2b-0.3y alloy during inter-pass annealing after deformation'. Together they form a unique fingerprint.

Cite this