INVESTIGATION ON MICROSTRUCTURE AND TRIBOLOGICAL   PROPERITIES OF CORED WIRE ARC SPRAYED Al/Al    2  O    3   COATINGS

Abstract

Abstract: Cored wires for electric arc spraying of Al/Al 2 O 3 MMC coatings were developed, with Al 2 O 3 powder as the core material and commercial aluminium strip as the retaining sheath. The bond strength, Al 2 O 3 content, microstructure, micro-hardness and wear resistance of coatings produced by arc spraying of the cored wires were experimentally investigated and were compared with those of pure aluminum coating.

Key words: Al 2 O 3 , aluminium, coating, arc spray, cored wire

Y.L.Zhu,S.N.Ma,C.H.Yang and R.F.Fu Surface Engineering Research Inst., CMES, Beijing 100072,China. INVESTIGATION ON MICROSTRUCTURE AND TRIBOLOGICAL PROPERITIES OF CORED WIRE ARC SPRAYED Al/Al 2 O 3 COATINGS[J]. Acta Metallurgica Sinica (English Letters), 1999, 12(5): 988-994.

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INVESTIGATION ON MICROSTRUCTURE AND TRIBOLOGICAL PROPERITIES OF CORED WIRE ARC SPRAYED Al/Al 2 O 3 COATINGS

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