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:
Alongside volume fraction, VV, and area per unit of volume, SV, the integral interfacecurvature per unit of volume, MV, or the average interface curvature, H, are importantmicrostructural descriptors. For grain growth, the grain boundary curvature is of special importancebecause, in addition to its geometrical significance, it is also the driving force for boundarymigration. Notwithstanding its importance, curvature has been seldom measured and utilized in theanalysis of polycrystals. Geometrical models were derived for the average curvature of individualgrains, of grain boundaries and of grain edges, as a function of the mean intercept length. Thesemodels show good agreement with curvature measurements in an Al-1mass%Mn alloy.Furthermore, this work shows how grain boundary curvature measurement can be applied to normalgrain growth as well as to the effect of particles on grain boundary pinning
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.2530.pdf
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