Nucleation mechanisms of dynamic recrystallization in austenitic steel alloy 800H

1998 ◽  
Vol 38 (12) ◽  
pp. 1843-1849 ◽  
Author(s):  
E Brünger ◽  
X Wang ◽  
G Gottstein
Keyword(s):  
Dynamic Recrystallization ◽  
Austenitic Steel ◽  
Steel Alloy ◽  
Alloy 800H ◽  
Nucleation Mechanisms

Microstructural Evolution and Texture Analysis in a Thermomechanically Processed Low SFE Super-Austenitic Steel (Alloy-28)

2018 ◽  
Vol 20 (4) ◽  
pp. 1700928 ◽  
Author(s):  
Niloofar Eftekhari ◽  
Abbas Zarei-Hanzaki ◽  
Amirali Shamsolhodaei ◽  
Anne-Laure Helbert ◽  
Thierry Baudin
Keyword(s):  
Austenitic Steel ◽  
Texture Analysis ◽  
Microstructural Evolution ◽  
Steel Alloy

Reversible Martensitic Transformation Produced by Severe Plastic Deformation of Metastable Austenitic Steel

2013 ◽  
Vol 738-739 ◽  
pp. 491-495 ◽  
Author(s):  
Igor Litovchenko ◽  
Alexander Tyumentsev ◽  
Alexander V. Korznikov
Keyword(s):  
Plastic Deformation ◽  
High Pressure ◽  
Martensitic Transformation ◽  
Severe Plastic Deformation ◽  
Dynamic Recrystallization ◽  
Austenitic Steel ◽  
High Pressure Torsion ◽  
Martensitic Transformations ◽  
Metastable Austenitic Steel ◽  
Nanostructured States

The peculiarities of martensitic transformations and formation of nanostructured states in metastable austenitic steel (Fe-18Cr-8Ni-Ti) after severe plastic deformation by high pressure torsion are investigated. It is shown that during severe plastic deformation with increased strain rate not only direct (γ→α΄) but also reverse (α΄→γ) martensitic transformations occur, which is revealed by the changes in the volume content of α΄ - martensite during deformation. The fragments thought to be formed by direct and reverse martensitic transformations and those of dynamic recrystallization of austenite are observed.

Dynamic Recrystallization of 7055 Aluminum Alloy during Hot Deformation

2010 ◽  
Vol 650 ◽  
pp. 295-301 ◽  
Author(s):  
Liang Ming Yan ◽  
Jian Shen ◽  
Ju Peng Li ◽  
Zhou Bing Li ◽  
Zhen Lei Tang
Keyword(s):  
Dynamic Recrystallization ◽  
Grain Boundaries ◽  
Electron Backscatter Diffraction ◽  
Local Area ◽  
Deformation Condition ◽  
Compression Tests ◽  
Nucleation Mechanisms ◽  
Z Value ◽  
7055 Aluminum Alloy ◽  
Backscatter Diffraction

Compression tests were performed at temperatures from 350 to 450 °C with different strain rates of 1.0×10−2 and 1.0×10−1 s−1. The microstructures of deformed samples were investigated by electron backscatter diffraction (EBSD). Microstructure observations indicated that under present deformation conditions, fraction of new grains increases with the Z value. It was found that different nucleation mechanisms for DRX were operated in hot deformed 7055 alloy, which was closely related to deformation condition. DRX nucleation and development were discussed in consideration of bulging of original grain boundaries and occasional subgrain rotation near the grain boundaries. Discontinuous dynamic recrystallization (DDRX) which occurred in a local area was also proved to be a nucleation mechanism at higher Z value for 7055 alloy.

Prediction of critical conditions for dynamic recrystallization in 316LN austenitic steel

2016 ◽  
Vol 23 (3) ◽  
pp. 238-243 ◽  
Author(s):  
Xin-gang Liu ◽  
Li-ge Zhang ◽  
Rong-sheng Qi ◽  
Lei Chen ◽  
Miao Jin ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Austenitic Steel ◽  
Critical Conditions

Nucleation mechanisms of dynamic recrystallization for G3 alloy during hot compression

Rare Metals ◽  
2016 ◽  
Vol 35 (7) ◽  
pp. 543-550 ◽  
Author(s):  
Jue Wang ◽  
Jian-Xin Dong ◽  
Mai-Cang Zhang
Keyword(s):  
Dynamic Recrystallization ◽  
Hot Compression ◽  
Nucleation Mechanisms

Nucleation mechanisms of dynamic recrystallization in Inconel 625 superalloy deformed with different strain rates

Rare Metals ◽  
2012 ◽  
Vol 31 (3) ◽  
pp. 215-220 ◽  
Author(s):  
Qingmiao Guo ◽  
Defu Li ◽  
Haijian Peng ◽  
Shengli Guo ◽  
Jie Hu ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Inconel 625 ◽  
Strain Rates ◽  
Nucleation Mechanisms ◽  
Inconel 625 Superalloy
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