Microstructure evolution and deformation mechanisms of the electroslag refined-continuous directionally solidified (ESR-CDS®) superalloy Rene88DT during isothermal compression

2015 ◽  
Vol 638 ◽  
pp. 152-164 ◽  
Author(s):  
Rui Fu ◽  
Fulin Li ◽  
Fajie Yin ◽  
Di Feng ◽  
Zhiling Tian ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Deformation Mechanisms ◽  
Isothermal Compression ◽  
Directionally Solidified

Investigations on Microstructure Evolution and Deformation Behavior of Aged and Ultrafine Grained Al-Zn-Mg Alloy Subjected to Severe Plastic Deformation

2010 ◽  
Vol 667-669 ◽  
pp. 253-258
Author(s):  
Wei Ping Hu ◽  
Si Yuan Zhang ◽  
Xiao Yu He ◽  
Zhen Yang Liu ◽  
Rolf Berghammer ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Plastic Deformation ◽  
Grain Size ◽  
Severe Plastic Deformation ◽  
Microstructure Evolution ◽  
Deformation Behavior ◽  
Deformation Mechanisms ◽  
Mg Alloy ◽  
Ultrafine Grained

An aged Al-5Zn-1.6Mg alloy with fine η' precipitates was grain refined to ~100 nm grain size by severe plastic deformation (SPD). Microstructure evolution during SPD and mechanical behaviour after SPD of the alloy were characterized by electron microscopy and tensile, compression as well as nanoindentation tests. The influence of η' precipitates on microstructure and mechanical properties of ultrafine grained Al-Zn-Mg alloy is discussed with respect to their effect on dislocation configurations and deformation mechanisms during processing of the alloy.

Creep behavior and deformation mechanisms of a novel directionally solidified Ni-base superalloy at 900 °C

2019 ◽  
Vol 148 ◽  
pp. 201-207 ◽  
Author(s):  
P. Zhang ◽  
J. Li ◽  
X.F. Gong ◽  
Y. Yuan ◽  
Y.F. Gu ◽  
...  
Keyword(s):  
Creep Behavior ◽  
Deformation Mechanisms ◽  
Directionally Solidified ◽  
Base Superalloy

scholarly journals Flow Behaviour and Microstructure Evolution of 2196 Alloy during Isothermal Compression

2020 ◽  
Vol 1637 ◽  
pp. 012147
Author(s):  
Hailong Cao ◽  
Yuxing Tian ◽  
Kang Du ◽  
Guanmei Niu ◽  
Cheng Liu
Keyword(s):  
Microstructure Evolution ◽  
Flow Behaviour ◽  
Isothermal Compression

Effect of Ca on Microstructure and Mechanical Properties of Directionally Solidified Mg-Zn-Ca Alloys

2020 ◽  
Vol 993 ◽  
pp. 161-165
Author(s):  
Yi Zhang ◽  
Xiao Hui Feng ◽  
Yuan Sheng Yang
Keyword(s):  
Mechanical Properties ◽  
Room Temperature ◽  
Tensile Tests ◽  
Deformation Mechanisms ◽  
Prismatic Slip ◽  
Directionally Solidified ◽  
Growth Orientation ◽  
Microstructure And Mechanical Properties ◽  
Dendritic Arm Spacing ◽  
Main Deformation

The effect of Ca on the microstructure and mechanical properties of directionally solidified (DSed) Mg-3Zn-xCa alloys (x=0.2,0.5,0.8wt.%) was investigated in the present work. The results showed that the DSed samples with the growth rate of 120 μm/s had columnar dendritic structures and the primary dendritic arm spacing (PDAS) decreased with the content of Ca increase. The TEM result indicated that the growth orientation of the DSed Mg-Zn-xCa alloys was , which was independent of the content of Ca. The tensile tests at room temperature showed that the mechanical properties of the DSed Mg-Zn-xCa alloys were strongly affected by the content of Ca. The addition of Ca remarkably improved the ultimate tensile strength (UTS) and the yield strength (YS), while dramatically reduced the elongation (El). Prismatic slip and twinning were the main deformation mechanisms in tensile tests.

Effect of the Strain and Strain Rate on Microstructure Evolution and Superplastic Deformation Mechanisms

2019 ◽  
Vol 120 (1) ◽  
pp. 87-94 ◽  
Author(s):  
O. A. Yakovtseva ◽  
A. V. Mikhaylovskaya ◽  
A. D. Kotov ◽  
O. I. Mamzurina ◽  
V. K. Portnoy
Keyword(s):  
Strain Rate ◽  
Microstructure Evolution ◽  
Superplastic Deformation ◽  
Deformation Mechanisms ◽  
Strain And Strain Rate
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