Development of a FDM based code to determine the 3-D size distribution of homogeneously dispersed spherical second phase from microstructure: a case study on nodular cast iron

2004 ◽  
Vol 51 (3) ◽  
pp. 255-260 ◽  
Author(s):  
C BASAK
Keyword(s):  
Cast Iron ◽  
Size Distribution ◽  
Nodular Cast Iron ◽  
Second Phase

Estimated S-N curve for nodular cast iron: A steering knuckle case study

2014 ◽  
Vol 15 (7) ◽  
pp. 1197-1204 ◽  
Author(s):  
M. Jimenez ◽  
J. Martinez ◽  
U. Figueroa ◽  
L. Altamirano
Keyword(s):  
Cast Iron ◽  
Nodular Cast Iron

Computer Simulation of Solidification of Nodular Cast Iron

1984 ◽  
Vol 34 ◽  
Author(s):  
Kou-Chang Su ◽  
Itsuo Ohnaka ◽  
Isamu Yamauchi ◽  
Tatsuichi Fukusako
Keyword(s):  
Computer Simulation ◽  
Cast Iron ◽  
Size Distribution ◽  
Growth Model ◽  
Nodular Cast Iron ◽  
Cooling Curves ◽  
Iron Casting ◽  
Nodular Iron ◽  
Diffusion Controlled ◽  
And Diffusion

ABSTRACTSolidification of a nodular iron casting was simulated by an undercooling nucleation and diffusion controlled growth model. Simulated cooling curves were similar to measured ones but estimating nodular size distribution requires improving the model.

scholarly journals Ultrasonic Scattering Attenuation in Nodular Cast Iron: Experimental and Simulation Studies

2021 ◽  
Vol 67 (5) ◽  
pp. 245-255
Author(s):  
Mário João Santos ◽  
Jaime Batista Santos
Keyword(s):  
Cast Iron ◽  
Size Distribution ◽  
Nodular Cast Iron ◽  
Analytical Models ◽  
Simulation Studies ◽  
Ultrasonic Scattering ◽  
Scattering Attenuation ◽  
The One ◽  
Scatterer Size

This work evaluates the ultrasonic scattering attenuation of structures with complex scatterer distributions via experimental and simulation studies. The proposed approach uses experimental attenuation knowledge to infer the scatterer size and its concentration in the studied structures, which are important for the effective construction of simulated models. The MATLAB k-Wave toolbox has been used to implement the simulator. Several cast-iron samples have been used to demonstrate the importance of simulation in the characterization of such structures. First, the scattering attenuation was evaluated using the Truell and Papadakis models, and then the results were compared with experimental ones. Emphasis was given to the Papadakis approach because it takes into account the scatterer size distribution. It is demonstrated that both analytical models provide results that are far from the experimental ones. The developed simulator for the studied samples led to a predictive model, in which the attenuation was proportional to the fifth power of the scatterer size, and the corresponding formulation is close to the one proposed by the analytical models.

Grain Refinement in Titanium-Erbium Alloys

1974 ◽  
Vol 32 ◽  
pp. 522-523
Author(s):  
B. B. Rath ◽  
J. E. O'Neal ◽  
R. J. Lederich
Keyword(s):  
Electron Microscopy ◽  
Size Distribution ◽  
Grain Refinement ◽  
Grain Growth ◽  
Volume Fraction ◽  
Pure Titanium ◽  
Systematic Investigation ◽  
Second Phase ◽  
Titanium Matrix ◽  
Average Size

Addition of small amounts of erbium has a profound effect on recrystallization and grain growth in titanium. Erbium, because of its negligible solubility in titanium, precipitates in the titanium matrix as a finely dispersed second phase. The presence of this phase, depending on its average size, distribution, and volume fraction in titanium, strongly inhibits the migration of grain boundaries during recrystallization and grain growth, and thus produces ultimate grains of sub-micrometer dimensions. A systematic investigation has been conducted to study the isothermal grain growth in electrolytically pure titanium and titanium-erbium alloys (Er concentration ranging from 0-0.3 at.%) over the temperature range of 450 to 850°C by electron microscopy.

Effective properties of nodular cast-iron: A multi-scale computational approach

2014 ◽  
Vol 82 ◽  
pp. 378-390 ◽  
Author(s):  
F.D. Carazo ◽  
S.M. Giusti ◽  
A.D. Boccardo ◽  
L.A. Godoy
Keyword(s):  
Cast Iron ◽  
Effective Properties ◽  
Nodular Cast Iron ◽  
Computational Approach ◽  
Multi Scale
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