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:
In-situ neutron diffraction has been used to study the pseudoelastic-like behaviour ofhydrostatically extruded AZ31 magnesium alloy during stress-strain cycles in compression andtension along the extrusion direction. It has been confirmed that the activation of reversal twinningprocesses during unloading is responsible for the macroscopically observed hysteresis effect.Moreover, neutron diffraction data reveals the existence of high tensile stresses in grains whichhave just experienced significant twinning activity prior to the start of the unload cycle. It is thusproposed that this tensile stresses provides the necessary driving force for the activation ofuntwinning in already twinned grains
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.571-572.107.pdf
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