Grain Growth Behavior During Microwave Annealing of Silicon Nitride

1996 ◽  
Vol 430 ◽  
Author(s):  
M. Hirota ◽  
M. E. Brito ◽  
K. Hirao ◽  
K. Watari ◽  
M. Toriyama ◽  
...  
Keyword(s):  
Growth Rate ◽  
Silicon Nitride ◽  
Comparative Study ◽  
Grain Growth ◽  
Microwave Radiation ◽  
Microstructural Analysis ◽  
Growth Behavior ◽  
Radiation Frequency ◽  
Microwave Annealing ◽  
Grain Growth Behavior

AbstractA comparative study of grain growth behavior in silicon nitride under conventional and microwave annealing is presented. Microwave annealed specimens showed a faster growth rate as indicated by the quantitative microstructural analysis. The phenomenon was used in combination with seeding techniques to develop a silicon nitride exhibiting a bi-modal microstructure. Microwave annealing was carried out using a microwave radiation frequency of 28 GHz.

Grain Growth Behavior of Fine-Grained Silicon Nitride Ceramics

1996 ◽  
Vol 204-206 ◽  
pp. 515-520 ◽  
Author(s):  
H. Hirotsuru ◽  
Mamoru Mitomo ◽  
Toshiyuki Nishimura
Keyword(s):  
Silicon Nitride ◽  
Grain Growth ◽  
Growth Behavior ◽  
Fine Grained ◽  
Nitride Ceramics ◽  
Grain Growth Behavior

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.

Austenitic Grain Growth Behavior during Austenization in an Aluminum-Alloyed 5% Cr-Mo-V Steel

2016 ◽  
Vol 87 (11) ◽  
pp. 1450-1460 ◽  
Author(s):  
Sha-Sha Li ◽  
Yao-Hui Liu ◽  
Yu-Lai Song ◽  
Ling-Nan Kong ◽  
Tuan-Jie Li ◽  
...  
Keyword(s):  
Grain Growth ◽  
Growth Behavior ◽  
Grain Growth Behavior
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