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Author：

Yang, J. (Yang, J..) | Huang, K. (Huang, K..) | Wu, F. (Wu, F..) | Sun, H. (Sun, H..) | Yang, D. (Yang, D..) | Li, S. (Li, S..) | Ge, X. (Ge, X..) | Wang, M. (Wang, M..)

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Scopus

Abstract：

Microstructure　and　properties　of　Al-Si　coating　prepared　on　the　surface　of　Mg-Gd-Y-Zr　magnesium　alloy　by　high-speed　laser　cladding　process　were　characterized　by　means　of　optical　microscope　(OM),　X-ray　diffractometer　(XRD),　scanning　electron　microscope　(SEM)　and　electrochemical　test　and　wear　test,　and　the　metallurgical　mechanism　and　wear　and　corrosion　resistance　of　the　substrate　and　Al-Si　coating　were　analyzed.　The　results　show　than　the　microstructure　of　clad　coating　consists　of　dendritic　α-Mg　solid　solution,　irregular　massive　Mg2Si,　α-Mg+Mg17Al12　eutectic　and　petal-like　Mg2Al3.　Due　to　grain　refinement　strengthening　and　secondary　phase　strengthening,　the　hardness　of　the　Al-Si　coating　reaches　160　HV0.1.　In　addition,　compared　with　the　magnesium　alloy　substrate,　the　corrosion　resistance　of　the　Al-Si　coating　is　significantly　improved,　the　self-corrosion　potential　is　increased　by　about　200　mV,　the　self-corrosion　current　density　is　reduced　by　2　orders　of　magnitude,　and　the　anti-wear　effect　is　increased　by　30.7%,　which　indicate　that　the　Al-Si　coating　is　expected　to　become　a　more　promising　wear　and　corrosion　resistant　protective　coatings　for　rare　earth　magnesium　alloys.　©　2023　Chinese　Mechanical　Engineering　Society　of　Heat　Treatment.　All　rights　reserved.

Keyword：

rare earth magnesium alloy wear resistance laser cladding microstructure Al-Si coating corrosion resistance

Author Community：

  • [ 1 ] [Yang J.]Institute of Laser Engineering, Faculty of Material and Manufacturing, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Huang K.]Institute of Laser Engineering, Faculty of Material and Manufacturing, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Wu F.]Institute of Laser Engineering, Faculty of Material and Manufacturing, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Sun H.]Capital Aerospace Machinery Co., Ltd., Beijing, 100076, China
  • [ 5 ] [Yang D.]Capital Aerospace Machinery Co., Ltd., Beijing, 100076, China
  • [ 6 ] [Li S.]Capital Aerospace Machinery Co., Ltd., Beijing, 100076, China
  • [ 7 ] [Ge X.]Beijing National Innovation Institute of Lightweight Ltd., Beijing, 100083, China
  • [ 8 ] [Ge X.]State Key Laboratory for Advanced Forming Technology and Equipment, China Academy of Machinery and Technology, Beijing, 100083, China
  • [ 9 ] [Wang M.]Beijing National Innovation Institute of Lightweight Ltd., Beijing, 100083, China
  • [ 10 ] [Wang M.]State Key Laboratory for Advanced Forming Technology and Equipment, China Academy of Machinery and Technology, Beijing, 100083, China

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Source ：

Heat Treatment of Metals

ISSN： 0254-6051

Year： 2023

Issue： 1

Volume： 48

Page： 217-223

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 1

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 6

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