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Author：

Guo, Y.-E. (Guo, Y.-E..) | Shang, D.-G. (Shang, D.-G..) | Xue, L. (Xue, L..) | Yin, X. (Yin, X..) | Chen, C.-L. (Chen, C.-L..) | Li, D.-H. (Li, D.-H..)

Indexed by：

EI Scopus SCIE

Abstract：

The　fatigue　performance　and　microstructure　of　polycrystalline　copper　treated　by　one　(UUV1),　two　(UUV2),　three　(UUV3)　passes　of　unconstraint　ultrasonic　vibration　(UUV)　treatment　were　investigated　in　this　paper.　The　surface　roughness,　fatigue　life,　microstructure,　and　plastic　strain　energy　before　and　after　UUV　treatment　were　compared.　The　results　revealed　that　the　surface　integrity　of　the　sample　for　UUV　treatment　higher　than　that　of　the　original　sample,　and　the　microscope　observation　found　that　the　grain　orientation,　the　dislocation　density,　the　low　angle　grain　boundaries,　the　plastic　strain　energy　of　the　damaged　sample　restored　to　the　original　state　to　a　great　extent　after　UUV　treatment.　The　fatigue　crack　initiation　life　increased　by　3　times　after　UUV3　treatment.　©　2024

Keyword：

Molecular dynamics simulation Fatigue life Unconstraint ultrasonic vibration LAGBs Plastic strain energy

Author Community：

  • [ 1 ] [Guo Y.-E.]Laboratory of Theoretical and Computational Nanoscience, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100190, China
  • [ 2 ] [Guo Y.-E.]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Shang D.-G.]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Xue L.]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
  • [ 5 ] [Yin X.]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
  • [ 6 ] [Chen C.-L.]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
  • [ 7 ] [Li D.-H.]School of Electrical Engineering, Tiangong University, Tianjin, 300387, China

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Source ：

International Journal of Fatigue

ISSN： 0142-1123

Year： 2024

Volume： 185

6 . 0 0 0

JCR@2022

Cited Count：

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 5

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