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author：

Wang, L. (Wang, L..) [1] | Quan, M. (Quan, M..) [2] | Tan, Z. (Tan, Z..) [3] | Liu, M. (Liu, M..) [4] (Scholars：刘明) | Wang, D. (Wang, D..) [5] | Yang, X. (Yang, X..) [6] | Liu, Y. (Liu, Y..) [7] | Mao, Y. (Mao, Y..) [8] | Liang, Z. (Liang, Z..) [9] | Yang, F. (Yang, F..) [10]

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Scopus

Abstract：

In　this　work,　we　demonstrate　the　feasibility　of　applying　electric　pulses　to　heal　surface　cracks　on　nickel-based　alloy　GH4169　under　compressive　load.　There　exists　an　incubation　time　for　the　onset　of　the　healing　of　a　crack,　which　is　associated　with　local　temperature　at　the　crack　tip.　The　crack　size　decreases　with　increasing　the　pulsing　time　at　a　constant　healing　rate　prior　to　complete　healing　of　the　crack.　Increasing　compressive　load　accelerates　the　healing　process.　The　electric　pulsing　leads　to　the　formation　of　an　influential　zone　surrounding　the　crack　with　the　finest　grain　sizes　in　the　healed　crack　and　the　coarsest　grain　sizes　away　from　the　influential　zone.　The　indentation　hardness　increases　with　the　increase　the　distance　to　the　crack　tip　of　the　healed　crack.　A　model　of　viscous　flow　in　the　crack　channel　is　proposed　for　the　crack　healing.　The　resultant　force　on　the　crack　faces　due　to　the　crack　healing　increases　with　the　increase　of　the　healing　time　and　the　decrease　of　the　crack　width.　©　2024　The　Author(s)

Keyword：

Electric pulse Healing Nickel-based alloy Surface crack

Community：

  • [ 1 ] [Wang L.]School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
  • [ 2 ] [Wang L.]Hebei Key Laboratory of Material Near-Net Forming Technology, Shijiazhuang, 050018, China
  • [ 3 ] [Quan M.]School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
  • [ 4 ] [Tan Z.]School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
  • [ 5 ] [Liu M.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Wang D.]School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
  • [ 7 ] [Wang D.]Hebei Key Laboratory of Material Near-Net Forming Technology, Shijiazhuang, 050018, China
  • [ 8 ] [Yang X.]School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
  • [ 9 ] [Yang X.]Hebei Key Laboratory of Material Near-Net Forming Technology, Shijiazhuang, 050018, China
  • [ 10 ] [Liu Y.]School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
  • [ 11 ] [Liu Y.]Hebei Key Laboratory of Material Near-Net Forming Technology, Shijiazhuang, 050018, China
  • [ 12 ] [Mao Y.]HBIS Group Materials Institute, HBIS Group, Hebei, Shijiazhuang, 050023, China
  • [ 13 ] [Liang Z.]School of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
  • [ 14 ] [Liang Z.]Hebei Key Laboratory of Material Near-Net Forming Technology, Shijiazhuang, 050018, China
  • [ 15 ] [Yang F.]Materials Program, Department of Chemical and Materials Engineering, University of Kentucky, Lexington, 40506, KY, United States

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Source ：

Journal of Materials Research and Technology

ISSN： 2238-7854

Year： 2024

Volume： 31

Page： 733-738

6 . 2 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 1

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