Effects of Hydrogen Pickup and Second-Phase Particle Dissolution on the In-Reactor Corrosion Performance of BWR Claddings

2009 ◽  
pp. 96-96-23 ◽  
Author(s):  
P Tägtstrom ◽  
M Limbäck ◽  
M Dahlbäck ◽  
T Andersson ◽  
H Pettersson
Keyword(s):  
Phase Particle ◽  
Second Phase ◽  
Corrosion Performance ◽  
Particle Dissolution ◽  
Hydrogen Pickup

The Effect of Second Phase Particle Dissolution on the Corrosion of Friction Stir Spot Welded AZ31B

2018 ◽  
Vol 165 (11) ◽  
pp. C794-C806 ◽  
Author(s):  
Y. Savguira ◽  
T. H. North ◽  
A. P. Gerlich ◽  
S. J. Thorpe
Keyword(s):  
Phase Particle ◽  
Second Phase ◽  
Friction Stir ◽  
Particle Dissolution ◽  
Spot Welded

Diffusional relaxation around a second phase particle

1980 ◽  
Vol 28 (3) ◽  
pp. 319-325 ◽  
Author(s):  
T. Mori ◽  
M. Okabe ◽  
T. Mura
Keyword(s):  
Phase Particle ◽  
Second Phase ◽  
Diffusional Relaxation

scholarly journals Grain Refinement by Second Phase Particles under Applied Stress in ZK60 Mg Alloy with Y through Phase Field Simulation

Materials ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 1903 ◽  
Author(s):  
Yuhao Song ◽  
Mingtao Wang ◽  
Yaping Zong ◽  
Ri He ◽  
Jianfeng Jin
Keyword(s):  
Grain Refinement ◽  
Applied Stress ◽  
Phase Field ◽  
Phase Particle ◽  
Alloy System ◽  
Second Phase ◽  
Recrystallization Process ◽  
Time Space ◽  
Second Phase Particles ◽  
Zk60 Alloy

Based on the principle of grain refinement caused by the second-phase particles, a phase field model was built to describe the recrystallization process in the ZK60 alloy system with Y added under applied stress between temperatures 573 and 673 K for 140 min duration. The simulation of grain growth with second phase particles and applied stress during annealing process on industrial scale on the condition of real time-space was achieved. Quantitative analysis was carried out and some useful laws were revealed in ZK60 alloy system. The second phase particles had a promoting effect on the grain refinement, however the effect weakened significantly when the content exceeded 1.5%. Our simulation results reveal the existence of a critical range of second phase particle size of 0.3–0.4 μm, within which a microstructure of fine grains can be obtained. Applied stress increased the grain coarsening rate significantly when the stress was more than 135 MPa. The critical size of the second phase particles was 0.4–0.75 μm when the applied stress was 135 MPa. Finally, a microstructure with a grain size of 11.8–13.8 μm on average could be obtained when the second phase particles had a content of 1.5% and a size of 0.4–0.75 μm with an applied stress less than 135 Mpa after 30 min annealing at 573 K.

Influence of second phase on corrosion performance and formation mechanism of PEO coating on AZ91 Mg alloy

2017 ◽  
Vol 718 ◽  
pp. 92-103 ◽  
Author(s):  
Yan Chen ◽  
Yange Yang ◽  
Wei Zhang ◽  
Tao Zhang ◽  
Fuhui Wang
Keyword(s):  
Formation Mechanism ◽  
Mg Alloy ◽  
Second Phase ◽  
Corrosion Performance

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.

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