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Autor(en):
Hugenschmidt, C.; Qi, N.; Stadlbauer, M.; Schreckenbach, K. 
Titel:
Correlation of mechanical stress and Doppler broadening of the positron annihilation line in Al and Al alloys 
Abstract:
The plastic deformation of Al samples, of the technical alloys AlMgSi0.5, and AlMg3 was studied by Doppler-broadening spectroscopy (DBS) of the positron annihilation line. First, the defect sensitive line-shape parameter S was measured after the application of axial tensile stress, and the corresponding stress-strain curves were recorded that allowed us to correlate the strain, the mechanical stress and the S-parameter values after mechanical load quantitatively. In a next step, asymmetrically d...    »
 
Zeitschriftentitel:
Phys. Rev. B 
Jahr:
2009 
Band / Volume:
80 
Heft / Issue:
22 
Seitenangaben Beitrag:
224203 
Verlag / Institution:
American Physical Society