Effects of microstructure evolution on the deformation mechanisms and tensile properties of a new Ni-base superalloy during aging at 800 °C

2021 ◽  
Vol 68 ◽  
pp. 40-52
Author(s):  
Kunlei Hou ◽  
Min Wang ◽  
Meiqiong Ou ◽  
Haoze Li ◽  
Xianchao Hao ◽  
...  
Keyword(s):  
Tensile Properties ◽  
Microstructure Evolution ◽  
Deformation Mechanisms ◽  
Base Superalloy

Plastic Flow and Microstructure Evolution during Thermomechanical Processing of a PM Nickel-Base Superalloy

2013 ◽  
Vol 44 (6) ◽  
pp. 2778-2798 ◽  
Author(s):  
S. L. Semiatin ◽  
K. E. McClary ◽  
A. D. Rollett ◽  
C. G. Roberts ◽  
E. J. Payton ◽  
...  
Keyword(s):  
Plastic Flow ◽  
Microstructure Evolution ◽  
Thermomechanical Processing ◽  
Nickel Base Superalloy ◽  
Nickel Base ◽  
Base Superalloy

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.

Deformation mechanisms at intermediate creep temperatures in the Ni-base superalloy René 88 DT

2005 ◽  
Vol 400-401 ◽  
pp. 489-495 ◽  
Author(s):  
G.B. Viswanathan ◽  
Peter M. Sarosi ◽  
Deborah H. Whitis ◽  
Michael J. Mills
Keyword(s):  
Deformation Mechanisms ◽  
Base Superalloy

Rolling reduction - dependent deformation mechanisms and tensile properties in a β titanium alloy

2021 ◽  
Author(s):  
Zhaoxin Du ◽  
Qiwei He ◽  
Ruirun Chen ◽  
Fei Liu ◽  
Jingyong Zhang ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Tensile Properties ◽  
Rolling Reduction ◽  
Deformation Mechanisms

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

Application of Atom Probe Microanalysis for Understanding Microstructure Evolution in Nickel Base Superalloy Welds

2000 ◽  
Vol 6 (S2) ◽  
pp. 350-351
Author(s):  
S. S. Babu ◽  
S. A. David ◽  
M. K. Miller
Keyword(s):  
Microstructure Evolution ◽  
Predictive Models ◽  
Strong Relationship ◽  
Atom Probe ◽  
Systematic Investigation ◽  
Nickel Base Superalloy ◽  
Cooling Conditions ◽  
Nickel Base ◽  
Base Superalloy

The characterization of the microstructure evolution during welding of nickel base superalloys is required for efficient reuse and reclamation of used and failed components. Previous atom probe analysis of electron-beam and laser-beam welds revealed complex alloying elemental partitioning between the γ and γ phases. Rapid cooling conditions in the weld leads to non-equilibrium partitioning and large amplitude Cr and Co levels in the γ phase. These results indicated that there is a strong relationship between weld cooling rate and the precipitation of γ′ precipitates from the γ phase. To understand and develop predictive models, a systematic investigation of the microstructure evolution in CM247DS alloy under controlled thermomechanical conditions are being performed. This paper describes some recent results on the elemental partitioning between γ and γ′ phases obtained with atom probe microanalysis.

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