Isothermal transformation of supercooled austenite in steel 75KhSMF

1972 ◽  
Vol 14 (1) ◽  
pp. 75-76
Author(s):  
M. V. Gedeon ◽  
I. V. Paisov ◽  
V. S. Tomsinskii ◽  
S. P. Ponomareva
Keyword(s):  
Isothermal Transformation ◽  
Supercooled Austenite

Isothermal transformation of supercooled austenite in high-speed steel �P733

1973 ◽  
Vol 15 (11) ◽  
pp. 942-943
Author(s):  
A. N. Popandopulo ◽  
M. E. Mormuleva ◽  
L. I. Kopenina
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
Isothermal Transformation ◽  
Supercooled Austenite

Isothermal transformation behavior of thermally-grown wüstite

2000 ◽  
Vol 17 (2) ◽  
pp. 311-319 ◽  
Author(s):  
B. Gleeson ◽  
S.M.M. Hadavi ◽  
D.J. Young
Keyword(s):  
Isothermal Transformation ◽  
Transformation Behavior ◽  
Thermally Grown

The composition and structure of SIPOS: A high spatial resolution electron microscopy study

1993 ◽  
Vol 8 (11) ◽  
pp. 2893-2901 ◽  
Author(s):  
M. Catalano ◽  
M.J. Kim ◽  
R.W. Carpenter ◽  
Das K. Chowdhury ◽  
Joe Wong
Keyword(s):  
Electron Microscopy ◽  
Oxygen Concentration ◽  
High Resolution Electron Microscopy ◽  
Microscopy Study ◽  
Isothermal Transformation ◽  
Electron Microscopy Study ◽  
Precipitation Reaction ◽  
Free Zone ◽  
Resolution Electron ◽  
Chemical Distribution

The nanostructure and chemical distribution in semi-insulating polycrystalline oxygen-doped silicon (SIPOS) deposited on (001) Si and its isothermal transformation behavior at 900 °C were investigated by high resolution electron microscopy (HREM) and electron energy loss nanospectroscopy (EELS). The structure of the as-deposited film, which contained 15 at. % oxygen, was amorphous. No evidence for nanocrystalline second phases was found. It was similar in appearance to amorphous silicon. After annealing for 30 min at 900 °C in an inert environment (N2), a dispersion of small nanocrystals, identified as silicon by imaging, diffraction and EELS, formed in the amorphous SIPOS matrix, with a thin precipitate free zone (PFZ) adjacent to the Si substrate. The SIPOS matrix oxygen concentration increased to 36 at. % and the matrix remained amorphous after annealing. No other phases were observed in annealed specimens. Changes in Si–L near edge fine structure and low loss peaks in EELS spectra from SIPOS with increasing oxygen concentration indicated that it is a solid solution supersaturated with silicon. Microstructures indicated that the Si nanocrystals formed during a homogeneous precipitation reaction.

Kinetics of the isothermal transformation of β-PbO2 into α-PbO2

1989 ◽  
Vol 138 (2) ◽  
pp. 277-283 ◽  
Author(s):  
C. Barriga ◽  
J. Morales ◽  
J.L. Tirado
Keyword(s):  
Isothermal Transformation ◽  
Kinetics Of

scholarly journals Application of Computer Simulation to Study the Features of the Austenite Isothermal Transformation in Steels

2019 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Yu.V. Yudin ◽  
M.V. Maisuradze ◽  
A.A. Kuklina ◽  
P.D. Lebedev
Keyword(s):  
Phase Transition ◽  
Computer Simulation ◽  
Solid State ◽  
Isothermal Transformation ◽  
Avrami Equation ◽  
Kinetic Curves ◽  
Simulation Results ◽  
Experimental Kinetics ◽  
Kinetics Of ◽  
New Phase

An algorithm was developed for the simulation of a phase transition in solid state whichmakes it possible to obtain the kinetic curves of transformation under different initialconditions (the number and arrangement of new phase nuclei, the distance betweenthe nearest nuclei). The simulation results were analyzed using the Kolmogorov-Johnson-Mehl-Avrami equation and the corresponding coefficients were determined.The correlation between the simulation results and the experimental kinetics of theaustenite isothermal transformation in alloyed steels was shown.

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