Time-temperature-transformation diagrams for the A1 to L10 phase transformation in FePt and FeCuPt thin films

2007 ◽  
Vol 101 (1) ◽  
pp. 014905 ◽  
Author(s):  
D. C. Berry ◽  
K. Barmak
2007 ◽  
Vol 537-538 ◽  
pp. 497-504
Author(s):  
Zoltán Dudás

Knowledge of the TTT (Time-Temperature-Transformation) or CCT (Continuous- Cooling-Transformation) diagrams of steels is an important factor in the thermo-mechanical processing of steels. Much experimental work has been undertaken to determine such diagrams. Significant works have been written which can calculate TTT and CCT diagrams for steels. The aim of the present work is to show the developed model that can provide accurate enough TTT and CCT diagrams for steel 42 CrMo4 (where the austenitisation temperature was 1050°C). The calculated results are compared by the experimental results. The developed TTT phase transformation diagrams based on FEM-based phase elements and the star-like cooling simulation make it possible to create virtual CCT diagram data.


2007 ◽  
Vol 537-538 ◽  
pp. 505-512
Author(s):  
Zoltán Dudás

The TTT (Time-Temperature-Transformation) phase transformation diagrams based on FEM based phase elements make it possible to create virtual TTT diagrams. In this case the virtual TTT diagrams are results of multiple linear regression calculations. The basic TTT diagrams are created on the basis of measured published data. Two created virtual TTT diagrams are presented for two different austenitisation temperatures. The results of calculations are compared to the measured ones.


1992 ◽  
Vol 7 (11) ◽  
pp. 3065-3071 ◽  
Author(s):  
Peir-Yung Chu ◽  
Isabelle Campion ◽  
Relva C. Buchanan

Phase transformation and preferred orientation in ZrO2 thin films, deposited on Si(111) and Si(100) substrates, and prepared by heat treatment from carboxylate solution precursors were investigated. The deposited films were amorphous below 450 °C, transforming gradually to the tetragonal and monoclinic phases on heating. The monoclinic phase developed from the tetragonal phase displacively, and exhibited a strong (111) preferred orientation at temperature as low as 550 °C. The degree of preferred orientation and the tetragonal-to-monoclinic phase transformation were controlled by heating rate, soak temperature, and time. Interfacial diffusion into the film from the Si substrate was negligible at 700 °C and became significant only at 900 °C, but for films thicker than 0.5 μm, overall preferred orientation exceeded 90%.


2021 ◽  
Vol 32 (8) ◽  
pp. 10018-10027
Author(s):  
M. A. Olgar ◽  
B. M. Başol ◽  
M. Tomakin ◽  
E. Bacaksız

2021 ◽  
Vol 266 ◽  
pp. 115078
Author(s):  
R. Ning ◽  
Z.P. Yang ◽  
Z.Y. Gao ◽  
X.Z. Cao ◽  
W. Cai

2020 ◽  
Vol 195 ◽  
pp. 109020
Author(s):  
Chun-Yuan Wang ◽  
Chin-I Wang ◽  
Sheng-Han Yi ◽  
Teng-Jan Chang ◽  
Chun-Yi Chou ◽  
...  

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