@ARTICLE{Król_Janusz_Characteristics_2002,
 author={Król, Janusz and Tałach-Dumańska, Marta and Paul, Henryk},
 number={No 4},
 journal={Archives of Metallurgy and Materials},
 pages={433-444},
 howpublished={online},
 year={2002},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences},
 abstract={The suitable structure of an alloy affects its superplastic properties due to a basic mechanisms of superplastic deformation. A fine structure of equiaxial grains appears in the alloy provided there are dispersoids and intermetallic compounds of certain size and distribution. The composition of the 2:XXX - type alloy (with Ni - addition) as well as a special thermomechanical treatment allowed to obtain a suitable structure of 15 μm-grain size and an equiaxial shape. The formation of such microstructure was investigated using optical, scanning and electron microscopy, as well as X-ray phase analysis techniques. The X-ray and electron microscopy with EDAX analyser allowed to determine the type and morphology of the intermetallic compounds, very important to generation the fine-grained structure. The superplastic state regarding quality of the structure was verified in tensile tests performed at the range of deformation rates between 1.4 x 10--4 to 7 x 10-3 s-1 and at temperatures from 789 K to 839 K, which allowed to attain the elongation above 300% and strain rate sensitivity coefficient m = 0.509.},
 type={Article},
 title={Characteristics of Superplastic State of the 2XXXType Alloy After Thermomechanical Treatment},
 URL={http://ochroma.man.poznan.pl/Content/131884/PDF-MASTER/9_METALLURGY_47_4_2002_Krol_CHARACTERISTICS.pdf},
}