Thermal Stability and Lattice Strain Evolution of High‐Nb‐Containing TiAl Alloy under Low‐Cycle‐Fatigue Loading

Ding, Jie; Huang, Shuntian; Dong, Zhili; Lin, Junpin; Ren, Yang; Wu, Xiaodong; Chang, Hui

doi:10.1002/adem.202001337

Title: Thermal Stability and Lattice Strain Evolution of High‐Nb‐Containing TiAl Alloy under Low‐Cycle‐Fatigue Loading

Abstract

The micromechanical behavior and the effect of temperature on the micromechanical mechanism of high‐Nb‐containing TiAl alloy during low‐cycle fatigue still remain uncertain. Herein, in situ and ex situ synchrotron‐based high‐energy X‐ray (HEXRD) experiment results reveal that the γ and ω _o phases suffer compressive lattice strains but the lattice strain in the α ₂ phase evolves from tensile to compressive during low‐cycle fatigue at 900 °C. In addition, the three phases suffer compressive lattice strains during cooling to room temperature, which could result in larger compressive lattice strains in γ and ω _o phases and the change of the lattice strain state in the α ₂ phase. The peak‐broadening results show γ recrystallization is dominant in the interrupted low‐cycle‐fatigue samples, whereas inhomogeneous deformation occurs in the failed low‐cycle‐fatigue samples. The performed synchrotron diffraction experiments offer a deeper insight into the phase transformations and micromechanism of TiAl alloy during low‐cycle fatigue.

Authors:

Ding, Jie ^[1]; Huang, Shuntian ^[2]; Dong, Zhili ^[3]; Lin, Junpin ^[4]; Ren, Yang ^[5];

^[1]; Chang, Hui ^[2]

Tech Institute for Advanced Materials College of Materials Science and Engineering Nanjing Tech University Nanjing 210009 China, School of Material Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
Tech Institute for Advanced Materials College of Materials Science and Engineering Nanjing Tech University Nanjing 210009 China
School of Material Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China
X-ray Science Division Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA

Publication Date:: Wed Jun 23 00:00:00 EDT 2021

Sponsoring Org.:: USDOE

OSTI Identifier:: 1862049

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Advanced Engineering Materials

Additional Journal Information:: Journal Name: Advanced Engineering Materials Journal Volume: 23 Journal Issue: 9; Journal ID: ISSN 1438-1656

Publisher:: Wiley Blackwell (John Wiley & Sons)

Country of Publication:: Germany

Language:: English

Citation Formats


                    Ding, Jie, Huang, Shuntian, Dong, Zhili, Lin, Junpin, Ren, Yang, Wu, Xiaodong, and Chang, Hui. Thermal Stability and Lattice Strain Evolution of High‐Nb‐Containing TiAl Alloy under Low‐Cycle‐Fatigue Loading.  Germany: N. p., 2021. 
Web.  doi:10.1002/adem.202001337.

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                    Ding, Jie, Huang, Shuntian, Dong, Zhili, Lin, Junpin, Ren, Yang, Wu, Xiaodong, & Chang, Hui. Thermal Stability and Lattice Strain Evolution of High‐Nb‐Containing TiAl Alloy under Low‐Cycle‐Fatigue Loading.  Germany.  https://doi.org/10.1002/adem.202001337

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                    Ding, Jie, Huang, Shuntian, Dong, Zhili, Lin, Junpin, Ren, Yang, Wu, Xiaodong, and Chang, Hui. Wed .  
"Thermal Stability and Lattice Strain Evolution of High‐Nb‐Containing TiAl Alloy under Low‐Cycle‐Fatigue Loading".  Germany.  https://doi.org/10.1002/adem.202001337.

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@article{osti_1862049,

  title        = {Thermal Stability and Lattice Strain Evolution of High‐Nb‐Containing TiAl Alloy under Low‐Cycle‐Fatigue Loading},

  author       = {Ding, Jie and Huang, Shuntian and Dong, Zhili and Lin, Junpin and Ren, Yang and Wu, Xiaodong and Chang, Hui},

  abstractNote = {The micromechanical behavior and the effect of temperature on the micromechanical mechanism of high‐Nb‐containing TiAl alloy during low‐cycle fatigue still remain uncertain. Herein, in situ and ex situ synchrotron‐based high‐energy X‐ray (HEXRD) experiment results reveal that the γ and ω o phases suffer compressive lattice strains but the lattice strain in the α 2 phase evolves from tensile to compressive during low‐cycle fatigue at 900 °C. In addition, the three phases suffer compressive lattice strains during cooling to room temperature, which could result in larger compressive lattice strains in γ and ω o phases and the change of the lattice strain state in the α 2 phase. The peak‐broadening results show γ recrystallization is dominant in the interrupted low‐cycle‐fatigue samples, whereas inhomogeneous deformation occurs in the failed low‐cycle‐fatigue samples. The performed synchrotron diffraction experiments offer a deeper insight into the phase transformations and micromechanism of TiAl alloy during low‐cycle fatigue.},

  doi          = {10.1002/adem.202001337},

  journal      = {Advanced Engineering Materials},

  number       = 9,

  volume       = 23,

  place        = {Germany},

  year         = {Wed Jun 23 00:00:00 EDT 2021},

  month        = {Wed Jun 23 00:00:00 EDT 2021}

}

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Works referenced in this record:

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Title: Thermal Stability and Lattice Strain Evolution of High‐Nb‐Containing TiAl Alloy under Low‐Cycle‐Fatigue Loading

Abstract

Citation Formats

Design, Processing, Microstructure, Properties, and Applications of Advanced Intermetallic TiAl Alloys journal, November 2012

Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting journal, January 2020

Load partitioning between ferrite and cementite during elasto-plastic deformation of an ultrahigh-carbon steel journal, April 2007

Microscale mechanical properties of ultra-high-strength polysynthetic TiAl-Ti 3 Al single crystals journal, August 2018

A study of fracture behaviour of gamma lamella using the notched TiAl micro-cantilever journal, January 2020

Low-cycle fatigue and deformation substructures in an engineering TiAl alloy journal, April 2007

Lattice and phase strain evolution during tensile loading of an intermetallic, multi-phase γ-TiAl based alloy journal, October 2018

Impact of microstructure, temperature and strain ratio on energy-based low-cycle fatigue life prediction models for TiAl alloys journal, July 2010

Cyclic deformation of TiAl generic microstructures at room and high temperature: Bauschinger effect & strain rate sensitivity journal, July 2020

Low cycle fatigue, creep and creep-fatigue interaction behavior of a TiAl alloy at high temperatures journal, February 2018

Effect of heat-treatment on the microstructure and fatigue properties of lamellar γ-TiAl alloyed with Nb, Mo and/or C journal, June 2020

Mechanical properties of high niobium TiAl alloys doped with Mo and C journal, June 2016

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Polysynthetic twinned TiAl single crystals for high-temperature applications journal, June 2016

Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures journal, April 2010

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Effect of dwell condition on fatigue behavior of a high-Nb TiAl alloy at 750 °C journal, December 2017

Microstructure degradation in high temperature fatigue of TiAl alloy journal, August 2014

Cyclic deformation mechanisms in a gamma titanium aluminide alloy at room temperature journal, January 2005

Omega phase in as-cast high-Nb-containing TiAl alloy journal, June 2013

Investigation of deformation and microstructural evolution in Grade 91 ferritic–martensitic steel by in situ high-energy X-rays journal, January 2014

In-situ study of the time–temperature-transformation behaviour of a multi-phase intermetallic β-stabilised TiAl alloy journal, February 2015

Cyclic deformation and microstructure evolution of high Nb containing TiAl alloy during high temperature low cycle fatigue journal, June 2017

Enhanced high-temperature tensile property by gradient twin structure of duplex high-Nb-containing TiAl alloy journal, December 2018

In Situ Observation of Various Phase Transformation Paths in Nb-Rich TiAl Alloys during Quenching with Different Rates journal, January 2011

Design, Processing, Microstructure, Properties, and Applications of Advanced Intermetallic TiAl Alloys
journal, November 2012

Fabrication of nano-TiC reinforced high Nb-TiAl nanocomposites by electron beam melting
journal, January 2020

Load partitioning between ferrite and cementite during elasto-plastic deformation of an ultrahigh-carbon steel
journal, April 2007

Microscale mechanical properties of ultra-high-strength polysynthetic TiAl-Ti 3 Al single crystals
journal, August 2018

A study of fracture behaviour of gamma lamella using the notched TiAl micro-cantilever
journal, January 2020

Low-cycle fatigue and deformation substructures in an engineering TiAl alloy
journal, April 2007

Lattice and phase strain evolution during tensile loading of an intermetallic, multi-phase γ-TiAl based alloy
journal, October 2018

Impact of microstructure, temperature and strain ratio on energy-based low-cycle fatigue life prediction models for TiAl alloys
journal, July 2010

Cyclic deformation of TiAl generic microstructures at room and high temperature: Bauschinger effect & strain rate sensitivity
journal, July 2020

Low cycle fatigue, creep and creep-fatigue interaction behavior of a TiAl alloy at high temperatures
journal, February 2018

Effect of heat-treatment on the microstructure and fatigue properties of lamellar γ-TiAl alloyed with Nb, Mo and/or C
journal, June 2020

Mechanical properties of high niobium TiAl alloys doped with Mo and C
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Microstructure stability and micro-mechanical behavior of as-cast gamma-TiAl alloy during high-temperature low cycle fatigue
journal, February 2018

Polysynthetic twinned TiAl single crystals for high-temperature applications
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Influence of niobium alloying on the low cycle fatigue of cast TiAl alloys at room and high temperatures
journal, April 2010

Cyclic deformation and fatigue in TiAl intermetallic compound under plastic strain control
journal, April 2010

Cyclic deformation and lattice strain distribution of high Nb containing TiAl alloy
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