ISSN:
1662-9752
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:
Nano-grained WC-10Co hardmetal can be made by doping a new invented VC-basedmulti-grain-growth-inhibitor and suitable technical processing. The specifications for quantitativemeasurement of the grain size of WC in the alloy were investigated. It is very important to obtainthe SE images of the alloy with good contrast and clear profile of WC grains by FESEM; then thelinear intercept (LI) method was used to quantitatively measure the intercepts of WC grains. Whenthe surveyed intercept numbers of WC grain exceeded 200, the statistic data for the mean grain sizeof WC were reproduced. The discriminative minimal grain size of used LI method was 12 nm; themaximum intercept of WC grain was 109 nm; the average intercept of WC grains was 45 nm andthe corresponding 3D mean grain size of WC was 70 nm which is agreeable with the XRDoutcome
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.534-536.1205.pdf
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