ISSN:
1013-9826
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:
Erosion wearing regulation with different erosion angel for Si3N4 ceramics were systematicallystudied by liquid-solid dual phase erosion wearing test with rotation disk through comparing withCr15Mo3 high chromium cast iron for pumps in industry. Besides the micro failure mechanism and therelationship between mechanical behavior and anti erosion wearing have been analyzed for theexperimental materials. The experimental results were concluded as following: the erosion resistance ofSi3N4 ceramic is about 20 times better than that of Cr15Mo3 high-Cr cast ion in erosion test angle, and theeffect of erosion angel on the erosion wearing volume lose features as N-shaped curve with the biggestvolume lose at 45° erosion angle while most erosion wearing volume at 90° angle, which indicates that itshould avoid 45° or 90° erosion angle during materials designing. Obvious direction and erosion trace arerevealed and volume lose mainly featured with tiny cutting, pear ditch and erosion hole, and micro crackand grain falling off at high angle erosion on the surface of Cr15Mo3 materials, besides smooth surface,high ductile, compact structure, fine grain and fine cylinder grain explaining main reason for excellentanti erosion wearing for Si3N4 ceramic
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2465.pdf
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