Electron Microscopy of Aluminum Crystals Deformed at Various Temperatures

Autor:	J. S. Koehler, T. S. Noggle
Rok vydání:	1957
Předmět:	Materials science Stress–strain curve General Physics and Astronomy chemistry.chemical_element Slip band Crystal structure Slip (materials science) law.invention Crystallography chemistry Aluminium law Shear stress Electron microscope Composite material
Zdroj:	Journal of Applied Physics. 28:53-62
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.1722573
Popis:	99.994% pure aluminum single crystals were deformed in tension at 4.2°K, 78°K, and 295°K. The deformation at 4.2°K produced fine slip, observed by electron microscopy, and gave rise to a linear stress strain curve. At 78°K at low strain one again observed fine slip and a linear stress strain curve; at large strains (resolved shear strain above about 0.25) a weak slip band structure developed progressively and the slope of the stress strain curve decreased. The stress strain curves were orientation dependent at all temperatures.
Databáze:	OpenAIRE
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