ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
The experiments of laser cladding Ni-coated nano-Al2O3 powder were made on 2Cr13stainless steel using 7kW CO2 laser processing system. The microstructure and mechanicalcharacteristics of composite coating were tested by scanning electronic microscope (SEM), X-raydiffraction (XRD), energy dispersion analyzer of X-ray (EDAX) and microhardness tester. Theresults showed that the composite coating was composed of superfine cellular dendritic structure.The X-ray diffraction data revealed that the cellular grains were composed of nano-Al2O3 particles,iron nickel alloy and iron chromium alloy. The mechanical characteristics of composite coatinggreatly increased. Compared with parent metal, the average hardness of composite coatingincreased by 1 time, and its wear property increased by 1.25 times
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.118.585.pdf
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