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:
Eutectic AlNi, AlFe, alloys exhibit plastic strains to failure (usually in the range of 1%-5%), that those of structural alloys. We have developed a technique to measure strains at the scaleof the microstructure and have used this method to assess the variation in failure properties withmicrostructure. This method is capable of using the grayscale information in the image of a griddedsample to obtain sub-pixel marker displacement, and can therefore accurately determine small strainvalues. Microstructures that exhibit large variation in local strain distribution tend to have highervariability in tensile properties, particularly tensile ductility, compared to microstructures thataccumulate strain more uniformly. Orientation and morphology of lamellar plates in lamellarcolonies play, also, a role in influencing the distribution of strain.Local grain orientation, phase distribution and segregation are factors influencing the straindistribution, and therefore the properties of these materials
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.550.247.pdf
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