A new-curvature cellular automata model of austenite grain growth

2019 ◽  
Vol 6 (9) ◽  
pp. 0965b5
Author(s):  
Zhiqiang Li ◽  
Junsheng Wang ◽  
Houbing Huang
Keyword(s):  
Cellular Automata ◽  
Grain Growth ◽  
Cellular Automata Model ◽  
Austenite Grain ◽  
Austenite Grain Growth

Austenite Grain Growth in High Manganese Steels

2019 ◽  
Vol 50 (12) ◽  
pp. 5760-5766 ◽  
Author(s):  
Madhumanti Bhattacharyya ◽  
Yves Brechet ◽  
Gary R. Purdy ◽  
Hatem S. Zurob
Keyword(s):  
Grain Growth ◽  
High Manganese ◽  
Austenite Grain ◽  
High Manganese Steels ◽  
Austenite Grain Growth ◽  
Manganese Steels

scholarly journals Austenite grain growth in alumina-forming austenitic steel – CORRIGENDUM

2016 ◽  
Vol 31 (12) ◽  
pp. 1810-1811
Author(s):  
Qiuzhi Gao ◽  
Fu Qu ◽  
Hailian Zhang ◽  
Qiang Huo
Keyword(s):  
Austenitic Steel ◽  
Grain Growth ◽  
Austenite Grain ◽  
Austenite Grain Growth

Effect of Rare Earth (RE) La on Solid Solution of Second Phase Particle and Austenite Grain Growth in Steel Containing High Niobium

2011 ◽  
Vol 189-193 ◽  
pp. 2869-2874 ◽  
Author(s):  
Wen Zhong Song ◽  
Qi Fang ◽  
Hui Ping Ren ◽  
Zi Li Jin ◽  
Hui Chang
Keyword(s):  
Solid Solution ◽  
Growth Rate ◽  
Rare Earth ◽  
Grain Growth ◽  
Phase Particle ◽  
Solution Temperature ◽  
Second Phase ◽  
Austenite Grain ◽  
Austenite Grain Growth ◽  
Soaking Temperature

The solid solution of the second phase particle and austenite grain growth behavior of the high niobium-containing RE steel was studied by mathematical calculation and extraction replica technique. The purpose of the study was to investigate the effects of Rare Earth La on austenite grain growth and propose an empirical equation for predicting the austenite grain size of RE steel. Austenite grain grows in an exponential law with the increase of heating temperature, while approximately in a parabolic law with the increase of holding time. Results show that the RE steel has good anti-coarsening ability at elevated temperatures. When soaking temperature is lower than 1250°C , AGS and growth rate are small for high niobium steel, but soaking temperature is lower than 1220°C , AGS and growth rate are small for RE steel. RE La can promote solid solution of second-phase particles Nb(C, N), the solution temperature decrease 30°C than high niobium steel.

Austenite Grain Growth in Heat Affected Zone of Zr-Ti Bearing Microalloyed Steel

2012 ◽  
Vol 19 (2) ◽  
pp. 73-78 ◽  
Author(s):  
Lei Zheng ◽  
Ze-xi Yuan ◽  
Shen-hua Song ◽  
Tian-hui Xi ◽  
Qian Wang
Keyword(s):  
Grain Growth ◽  
Heat Affected Zone ◽  
Microalloyed Steel ◽  
Austenite Grain ◽  
Austenite Grain Growth

scholarly journals Effect of Cold-Deformation on Austenite Grain Growth Behavior in Solution-Treated Low Alloy Steel

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1004 ◽  
Author(s):  
Xianguang Zhang ◽  
Kiyotaka Matsuura ◽  
Munekazu Ohno
Keyword(s):  
Mechanical Properties ◽  
Low Temperature ◽  
Grain Growth ◽  
Cold Deformation ◽  
Growth Behavior ◽  
Low Alloy Steel ◽  
Solution Treated ◽  
Austenite Grain ◽  
Grain Growth Behavior ◽  
Austenite Grain Growth

The occurrence of abnormal grain growth (AGG) of austenite during annealing is a serious problem in steels with carbide and/or nitride particles, which should be avoided from a viewpoint of mechanical properties. The effects of cold deformation prior to annealing on the occurrence of AGG have been investigated. It was found that the temperature range of the occurrence of AGG is shifted toward a low temperature region by cold deformation, and that the shift increases with the increase of the reduction ratio. The lowered AGG occurrence temperature is attributed to the fine and near-equilibrium AlN particles that are precipitated in the cold-deformed steel, which is readily dissolved during annealing. In contrast, coarse and non-equilibrium AlN particles precipitated in the undeformed steel, which is resistant to dissolution during annealing.

scholarly journals Austenite grain growth simulation considering the solute-drag effect and pinning effect

2017 ◽  
Vol 18 (1) ◽  
pp. 88-95 ◽  
Author(s):  
Naoto Fujiyama ◽  
Toshinobu Nishibata ◽  
Akira Seki ◽  
Hiroyuki Hirata ◽  
Kazuhiro Kojima ◽  
...  
Keyword(s):  
Grain Growth ◽  
Solute Drag ◽  
Drag Effect ◽  
Growth Simulation ◽  
Solute Drag Effect ◽  
Pinning Effect ◽  
Austenite Grain ◽  
Austenite Grain Growth
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