کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1276867 | 1497562 | 2012 | 8 صفحه PDF | دانلود رایگان |
Rapidly quenched amorphous Mg65Ni20Cu5Y10 metallic glass compacts were subjected to heavy shear deformation by high-pressure torsion until different amounts of ultimate strain. High-resolution X-ray diffraction analysis and scanning electron microscopy revealed that high-pressure torsion resulted in a deformation dependent microstructure. High-pressure calorimetry measurements revealed that hydrogen uptake in the fully amorphous alloy occurs at a significantly lower temperature compared to the fully crystallized state, while the amount of absorbed hydrogen increased considerably after heavy shear deformation due to the formation of Mg2Ni crystals.
► Rapidly quenched Mg65Ni20Cu5Y10 metallic glass compacts were subjected to heavy shear deformation.
► H-uptake in the amorphous alloy occurs at lower temperature compared to the crystallized state.
► The amount of absorbed hydrogen increased considerably after high-pressure torsion.
Journal: International Journal of Hydrogen Energy - Volume 37, Issue 7, April 2012, Pages 5769–5776