Improvement of strength and conductivity in Cu-alloys with the application of high pressure torsion and subsequent heat-treatments

2014 ◽  
Vol 49 (19) ◽  
pp. 6674-6681 ◽  
Author(s):  
D. V. Shangina ◽  
J. Gubicza ◽  
E. Dodony ◽  
N. R. Bochvar ◽  
P. B. Straumal ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Torsion ◽  
Heat Treatments ◽  
Cu Alloys

Correlation between microstructural evolution during high-pressure torsion and isothermal heat treatment of amorphous Al85Gd8Ni5Co2 alloy

2010 ◽  
Vol 25 (7) ◽  
pp. 1388-1397 ◽  
Author(s):  
Péter Henits ◽  
Ádám Révész ◽  
Erhard Schafler ◽  
Péter J. Szabó ◽  
János L. Lábár ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Pressure ◽  
High Pressure Torsion ◽  
Thermal Sensitivity ◽  
Heat Treatments ◽  
Isothermal Heat Treatment ◽  
X Ray Diffraction ◽  
Continuous Heat Treatment ◽  
Isothermal Heat Treatments ◽  
Continuous Heat

Al85Gd8Ni5Co2 metallic glass was subjected to partial devitrification by high-pressure torsion, continuous heat treatment, and isothermal annealing. The fully amorphous alloy exhibits a well-defined transition in its first devitrification product during isothermal heat treatments from τm + α-Al phase mixture to primary α-Al by increasing the annealing temperature above 555 K. This thermal sensitivity predestinates the composition to identify the controversial thermal contribution of the plastic deformation in metallic glasses. Thermal stability and structure of the partially devitrified samples were systematically analyzed and compared by calorimetry, x-ray diffraction, and electron microscopy. It seems that the effect of severe deformation cannot be singled out by a simple isothermal heat treatment; i.e., high-pressure torsion acts as a spectrum of heat treatments performed at different annealing temperatures.

Development of Age-Hardening Technology for Ultrafine-Grained Al-Li-Cu Alloys Fabricated by High-Pressure Torsion

2012 ◽  
pp. 939-944
Author(s):  
Hiroaki Motoshima ◽  
Shoichi Hirosawa ◽  
Seungwon Lee ◽  
Zenji Horita ◽  
Kenji Matsuda ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Torsion ◽  
Age Hardening ◽  
Cu Alloys ◽  
Ultrafine Grained

Development of Age-Hardening Technology for Ultrafine-Grained Al-Li-Cu Alloys Fabricated by High-Pressure Torsion

2012 ◽  
pp. 939-944 ◽  
Author(s):  
Hiroaki Motoshima ◽  
Shoichi Hirosawa ◽  
Seungwon Lee ◽  
Zenji Horita ◽  
Kenji Matsuda ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Torsion ◽  
Age Hardening ◽  
Cu Alloys ◽  
Ultrafine Grained

Cluster structure in amorphous Ti-Ni-Cu alloys subjected to high-pressure torsion deformation

2018 ◽  
Vol 749 ◽  
pp. 612-619 ◽  
Author(s):  
D.V. Gunderov ◽  
E.V. Boltynjuk ◽  
E.V. Ubyivovk ◽  
A.V. Lukyanov ◽  
A.A. Churakova ◽  
...  
Keyword(s):  
High Pressure ◽  
High Pressure Torsion ◽  
Cluster Structure ◽  
Cu Alloys ◽  
Torsion Deformation
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