Microstructure and performance of a laser cladding of Ni-based alloy on 6061 aluminium alloy

Chunhua Zhang, Song Zhang, Hau Chung Man, Changsheng Liu, Qingkui Cai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

20 Citations (Scopus)

Abstract

NiCrBSi powder was painted onto the roughened surface of Al6061 and then a laser surface cladding using a high-power 2 kW CW Nd-YAG laser was conducted. The experimental results showed that the aluminium alloy had high absorptivity for 1.06 μm laser. With optimum process parameters and at Ar shield, a compact cladding layer of Ni-Al was obtained. The cladding layer was composed of a fine dendritic structure of intermetallic compounds of Ni-Al. The surface hardness (Hv) was over 9000 MPa. The results of the electrochemical corrosion and the frictional wear showed that the properties of electrochemical corrosion and friction wear of the Al6061 was improved by means of the laser cladding.
Original languageChinese (Simplified)
Pages (from-to)701-704
Number of pages4
JournalXiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume34
Issue number5
Publication statusPublished - 1 May 2005

Keywords

  • Electrochemical corrosion
  • Friction wear
  • Laser cladding
  • Ni-based alloy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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