Ultrafine-grained Al-Mg-Zr alloy processed by shear-assisted extrusion with high thermal stability

2020 ◽  
Vol 186 ◽  
pp. 326-330 ◽  
Author(s):  
Joseph R. Croteau ◽  
Jae-Gil Jung ◽  
Scott A. Whalen ◽  
Jens Darsell ◽  
Austin Mello ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Thermal Stability ◽  
Ultrafine Grained ◽  
Zr Alloy

Evolution of Structure and Phase Composition of Aluminum Alloy under Severe Plastic Deformation

2014 ◽  
Vol 880 ◽  
pp. 179-183
Author(s):  
Evgeniy V. Naydenkin ◽  
Konstantin V. Ivanov ◽  
Gennadiy E. Rudenskii
Keyword(s):  
Crystal Structure ◽  
Thermal Stability ◽  
Plastic Deformation ◽  
Aluminum Alloy ◽  
Severe Plastic Deformation ◽  
S Phase ◽  
High Thermal Stability ◽  
Ultrafine Grained ◽  
Evolution Of Structure ◽  
Thermal Stability Of

The paper shows that high thermal stability of the ultrafine-grained structure of aluminum alloy produced by severe plastic deformation is related to S-phase particles. The sequence of phase transformations of zirconium-doped ultrafine-grained alloy Al-Mg-Li in heating is revealed. The paper also determines temperatures at which depending on crystal structure two types of S-phase particles can form.

Microstructure and Properties of Ultrafine Grained Cu-0.73%Cr Alloy after High Pressure Torsion

2011 ◽  
Vol 391-392 ◽  
pp. 385-389 ◽  
Author(s):  
Kun Xia Wei ◽  
Wei Wei ◽  
Igor V. Alexandrov ◽  
Qing Bo Du ◽  
Jing Hu
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Electrical Conductivity ◽  
Grain Size ◽  
High Pressure ◽  
High Pressure Torsion ◽  
Aging Treatment ◽  
High Thermal Stability ◽  
Subsequent Aging ◽  
Ultrafine Grained

Microstructure, mechanical properties and electrical conductivity in Cu-0.73%Cr alloy after HPT process and the subsequent aging treatment have been investigated. Ultrafine grained structure with the grain size ~150 nm has been achieved after the HPT and the subsequent aging treatment. Ultrafine grains with some growth twins were preserved in the overaged state, showing high thermal stability. The peak microhardness and tensile strength of Cu-0.73%Cr alloy after the HPT was found at 480 °C for 2 hours. Electrical conductivity shows an increase trend in the different aging states.

The formation mechanism of a novel interfacial phase with high thermal stability in a Mg-Gd-Y-Ag-Zr alloy

2019 ◽  
Vol 162 ◽  
pp. 214-225 ◽  
Author(s):  
L.R. Xiao ◽  
Y. Cao ◽  
S. Li ◽  
H. Zhou ◽  
X.L. Ma ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Formation Mechanism ◽  
High Thermal Stability ◽  
Interfacial Phase ◽  
Zr Alloy

Fabrication of an ultrafine-grained W-ZrC-Re alloy with high thermal stability

2021 ◽  
Vol 164 ◽  
pp. 112208
Author(s):  
B.L. Zhao ◽  
Z.M. Xie ◽  
R. Liu ◽  
H. Wang ◽  
M.M. Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Thermal Stability ◽  
Ultrafine Grained

Wide-bandgap bipolar material with high thermal stability

2019 ◽  
pp. 903
Author(s):  
Sheng-Chieh Lin ◽  
Yu-Chieh Cheng ◽  
Man-Kit Leung ◽  
Jiun-Haw Lee ◽  
Tien-Lung Chiu
Keyword(s):  
Thermal Stability ◽  
Wide Bandgap ◽  
High Thermal Stability
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