ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Featured by cheap equipment, easy operation, nice controllability and low consumption, compoundelectroless deposit becomes an effective method to avoid failures such as high-temperaturecorrosion, fatigue and abrasion. Combined with the merits of nanometer material and lasertreatment technology, the Ni-P nanometer Al2O3 electroless deposit after laser strengthening can getfiner grains with high performances. This paper researched the technique of laser strengthening on3Cr13 stainless steel after Ni-P-nano Al2O3 electroless plating. The experiments with low laserpower and high laser power were performed. The crystallinity, phases and element distribution ofcoating were analyzed by X-ray Diffraction (XRD) and energy spectrometer (EDS). Themicrohardness and wear resistance of coating were measured as well. The results showed thatcomposite coating heated by low laser power leads to transformation from non-crystal to crystalwith high hardness. When heated by high laser power, the electroless deposit layer melted, and mostof amorphous transformed to crystal. Combined with high laser power and high scanning velocity,the electroless deposit with finer grains and excellent properties was obtained. The strengtheningmechanism was analyzed, and the properties including hardening and wear resistance wereinvestigated as well
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/41/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.47-50.952.pdf
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