Fatigue-induced evolution of nanograins and residual stress in the nanostructured surface layer of Ti–6Al–4V

Yun Fei Jia; Yi Xin Liu; Jie Huang; Yao Fu; Xian Cheng Zhang; Yun Chang Xin; Shan Tung Tu; Miao Dong Mao; Fuqian Yang

doi:10.1016/j.msea.2019.138205

Fatigue-induced evolution of nanograins and residual stress in the nanostructured surface layer of Ti–6Al–4V

Yun Fei Jia, Yi Xin Liu, Jie Huang, Yao Fu, Xian Cheng Zhang, Yun Chang Xin, Shan Tung Tu, Miao Dong Mao, Fuqian Yang

Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Using ultrasonic deep rolling process, we have formed a surface layer of nanograins in Ti–6Al–4V alloy. The effect of fatigue deformation under uniaxial loading on the evolution of average grain size and Tresca stress in the surface layer of nanograins is studied. Increasing the strain amplitude of the uniaxial fatigue test increases the relaxation rate of the Tresca stress and the growth rate of the nanograins. A simple relation between the grain coarsening of the nanograins and the cycle number is used to describe the fatigue-induced grain growth of the nanograins in the surface layer. There exists strain-assisted grain growth of the nanograins, which is driven by strain energy and associated with the relaxation of residual stress. The rate of the grain growth can be approximately expressed as an exponential function of the strain amplitude.

Original language	English
Article number	138205
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	764
DOIs	https://doi.org/10.1016/j.msea.2019.138205
State	Published - Sep 9 2019

Bibliographical note

Funding Information:
STT and XCZ are grateful for the support from National Natural Science Foundation of China of China ( 51725503 , 51605164 , 51575183 ) and the 111 project. XCZ is also grateful for the support through Shanghai Technology Innovation Program of SHEITC ( CXY-2015-001 ), Fok Ying Tung Education Foundation , and Young Program of Yangtze River Scholars. YFJ is also grateful for the support through Shanghai Sailing Program ( 16YF1402300 ) and Shanghai Chenguang Program ( 16CG34 ).

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

Fatigue
Grain coarsening
Nano-grain
Residual stress

ASJC Scopus subject areas

Materials Science (all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2019.138205

Cite this

Jia, Y. F., Liu, Y. X., Huang, J., Fu, Y., Zhang, X. C., Xin, Y. C., Tu, S. T., Mao, M. D., & Yang, F. (2019). Fatigue-induced evolution of nanograins and residual stress in the nanostructured surface layer of Ti–6Al–4V. Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 764, Article 138205. https://doi.org/10.1016/j.msea.2019.138205

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title = "Fatigue-induced evolution of nanograins and residual stress in the nanostructured surface layer of Ti–6Al–4V",

abstract = "Using ultrasonic deep rolling process, we have formed a surface layer of nanograins in Ti–6Al–4V alloy. The effect of fatigue deformation under uniaxial loading on the evolution of average grain size and Tresca stress in the surface layer of nanograins is studied. Increasing the strain amplitude of the uniaxial fatigue test increases the relaxation rate of the Tresca stress and the growth rate of the nanograins. A simple relation between the grain coarsening of the nanograins and the cycle number is used to describe the fatigue-induced grain growth of the nanograins in the surface layer. There exists strain-assisted grain growth of the nanograins, which is driven by strain energy and associated with the relaxation of residual stress. The rate of the grain growth can be approximately expressed as an exponential function of the strain amplitude.",

keywords = "Fatigue, Grain coarsening, Nano-grain, Residual stress",

author = "Jia, {Yun Fei} and Liu, {Yi Xin} and Jie Huang and Yao Fu and Zhang, {Xian Cheng} and Xin, {Yun Chang} and Tu, {Shan Tung} and Mao, {Miao Dong} and Fuqian Yang",

note = "Funding Information: STT and XCZ are grateful for the support from National Natural Science Foundation of China of China ( 51725503 , 51605164 , 51575183 ) and the 111 project. XCZ is also grateful for the support through Shanghai Technology Innovation Program of SHEITC ( CXY-2015-001 ), Fok Ying Tung Education Foundation , and Young Program of Yangtze River Scholars. YFJ is also grateful for the support through Shanghai Sailing Program ( 16YF1402300 ) and Shanghai Chenguang Program ( 16CG34 ). Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = sep,

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doi = "10.1016/j.msea.2019.138205",

language = "English",

volume = "764",

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T1 - Fatigue-induced evolution of nanograins and residual stress in the nanostructured surface layer of Ti–6Al–4V

AU - Jia, Yun Fei

AU - Liu, Yi Xin

AU - Huang, Jie

AU - Fu, Yao

AU - Zhang, Xian Cheng

AU - Xin, Yun Chang

AU - Tu, Shan Tung

AU - Mao, Miao Dong

AU - Yang, Fuqian

N1 - Funding Information: STT and XCZ are grateful for the support from National Natural Science Foundation of China of China ( 51725503 , 51605164 , 51575183 ) and the 111 project. XCZ is also grateful for the support through Shanghai Technology Innovation Program of SHEITC ( CXY-2015-001 ), Fok Ying Tung Education Foundation , and Young Program of Yangtze River Scholars. YFJ is also grateful for the support through Shanghai Sailing Program ( 16YF1402300 ) and Shanghai Chenguang Program ( 16CG34 ). Publisher Copyright: © 2019 Elsevier B.V.

PY - 2019/9/9

Y1 - 2019/9/9

N2 - Using ultrasonic deep rolling process, we have formed a surface layer of nanograins in Ti–6Al–4V alloy. The effect of fatigue deformation under uniaxial loading on the evolution of average grain size and Tresca stress in the surface layer of nanograins is studied. Increasing the strain amplitude of the uniaxial fatigue test increases the relaxation rate of the Tresca stress and the growth rate of the nanograins. A simple relation between the grain coarsening of the nanograins and the cycle number is used to describe the fatigue-induced grain growth of the nanograins in the surface layer. There exists strain-assisted grain growth of the nanograins, which is driven by strain energy and associated with the relaxation of residual stress. The rate of the grain growth can be approximately expressed as an exponential function of the strain amplitude.

AB - Using ultrasonic deep rolling process, we have formed a surface layer of nanograins in Ti–6Al–4V alloy. The effect of fatigue deformation under uniaxial loading on the evolution of average grain size and Tresca stress in the surface layer of nanograins is studied. Increasing the strain amplitude of the uniaxial fatigue test increases the relaxation rate of the Tresca stress and the growth rate of the nanograins. A simple relation between the grain coarsening of the nanograins and the cycle number is used to describe the fatigue-induced grain growth of the nanograins in the surface layer. There exists strain-assisted grain growth of the nanograins, which is driven by strain energy and associated with the relaxation of residual stress. The rate of the grain growth can be approximately expressed as an exponential function of the strain amplitude.

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KW - Grain coarsening

KW - Nano-grain

KW - Residual stress

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Fatigue-induced evolution of nanograins and residual stress in the nanostructured surface layer of Ti–6Al–4V

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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