Microstructure Evolution of TiAl under Tensile Impact Loadings

Xiang Zan; Li Ouyang; Yu Wang; Yue Hui He; Yong Liu; Wei Dong Song

doi:10.4028/www.scientific.net/MSF.747-748.14

Paper Titles

Preface and Organizers

Preparation of Multilayered Ti-Al Alloys by Solid Reaction
p.1

Lattice Structures of AlSc and their Effect on Interdiffusion
p.9

Microstructure Evolution of TiAl under Tensile Impact Loadings
p.14

The Effect of Stoichiometry and Degree of Order on Mechanical Properties of Ni₃Fe Intermetallics
p.19

Fabrication and Properties of Rapidly Quenched Fe-6.5wt.%Si Alloy Ribbons
p.25

Numerical Simulation and Process Optimization of Directional Solidification of Nb Containing High Silicon Steel
p.31

Microstructure Transformation of a Refined High Nb Containing TiAl Alloy
p.38

Effect of Al on Microstructures and Properties of Ti-45Al-8.5Nb-0.2B-0.2W Alloy
p.44

HomeMaterials Science ForumMaterials Science Forum Vols. 747-748Microstructure Evolution of TiAl under Tensile...

Microstructure Evolution of TiAl under Tensile Impact Loadings

Abstract:

The microstructure evolution of TiAl intermetallics with different microstructures loaded under different strain rates and temperatures was investigated. The results showed that the deformation twinning dominated the deformation process under high strain rate, while dislocation slip was another dominating deformation mode under quasi-static loadings. The proportion of twinned grain increased with the increased strain rate. In Duplex TiAl, the plastic deformation was mainly found in equaxied grains and seldom found in lamellar grains.

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Materials Science Forum (Volumes 747-748)

Pages:

14-18

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.747-748.14

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Online since:

February 2013

Authors:

Xiang Zan, Li Ouyang, Yu Wang, Yue Hui He, Yong Liu, Wei Dong Song

Keywords:

High Strain Rate, Microstructure Evolution, TiAl Intermetallics

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