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The utility tools outlined below can be used to predict material behavior, particularly hardenability, or be used to fit experimental data to the DANTE model parameters.
TTTGen is used to generate TTT and CCT curves for steel alloys in the DANTE material database.
CHTGen is used to generate continuous heating curves for steel alloys in the DANTE material database.
Jominy Predictor is used to predict the hardness and microstructural profiles of a Jominy bar made of steel alloys contained in the DANTE material database.
DI Predictor is used to predict the ideal diameter of steel alloys contained in the DANTE material database.
DilotFit is used to fit diffusive and martensitic phase transformation kinetics to the DANTE phase transformation models using dilatometry experimental data or from JMatPro generated data.
MecFit is used to fit mechanical properties to the DANTE material models from tension/compression tests or from JMatPro generated data.
TTTFit is used to fit diffusive phase transformation kinetics to the DANTE models using TTT curves. TTT curves can be generated from 3rd party software or constructed manually.
HTCFit is used to fit heat transfer coefficients (HTCs) from time-temperature data. HTCs can be fit as a constant, a function of part surface temperature, or a function of time.
TTTGen uses the DANTE material database transformation kinetics and DANTE material models to generate TTT or CCT diagrams. Carbon in solution, carbon in carbide, and alloy variation from the nominal composition can be considered. TTT and CCT generation use the same Material definition.
TTT Process definition (shown) is defined as the upper and lower temperature bounds and the isothermal holding time. CCT Process definition is defined as starting and ending temperatures and fastest and slowest cooling times.
Both, TTT and CCT, take advantage of the same Controls definition. Controls include activating/deactivating the DANTE Tempering model and the DANTE Carbon Separation model (for carbon rejection during ferrite formation). Control of the maximum changes for phases, temperature, and carbon is also provided. Units can also be changed (℃/℉ and sec./min.).
CHTGen uses the DANTE material database transformation kinetics and DANTE material models to generate continuous heating diagrams (CHT) and isothermal transformation heating diagrams (TTTH). Carbon in solution, carbon in carbide, carbide size, initial phase composition, and alloy variation from the nominal composition can all be considered. CHT and TTTH generation use the same Material definition.
CHT Process definition (shown) is defined as starting and ending temperatures and fastest and slowest heating times. TTTH Process definition is defined as the upper and lower temperature bounds and the isothermal holding time.
Both, CHT and TTTH, take advantage of the same Controls definition. Controls include choosing rate based or equilibrium austenite transformation kinetics, activating/deactivating the DANTE Carbon Separation model (for carbon rejection during ferrite formation) and the DANTE Carbide Decomposition model. Control of the maximum changes for phases, temperature, and carbon is also provided.
Jominy Predictor uses the DANTE material database transformation kinetics and DANTE material models to generate Jominy curves. Carbon in solution, carbon in carbide, and alloy variation from the nominal composition can be considered.
Controls for Jominy Predictor include activating/deactivating the DANTE Tempering model and the DANTE Carbon Separation model (for carbon rejection during ferrite formation). Control of the maximum changes for phases, temperature, and carbon is provided. Hardness units can also be changed (HRC/HV.).
In addition to the hardness profile as a function of Jominy point depth, Jominy Predictor also outputs the phase fractions as a function of depth.
DI Predictor uses the DANTE material database transformation kinetics and DANTE material models to predict the ideal diameter of a steel alloy. Carbon in solution, carbon in carbide, and alloy variation from the nominal composition can be considered.
Controls for DI Predictor include activating/deactivating the DANTE Tempering model and the DANTE Carbon Separation model (for carbon rejection during ferrite formation). Control of the maximum changes for phases, temperature, and carbon is provided. Hardness units can also be changed (HRC/HV.).
In addition to the Ideal Diameter, provided in millimeters (mm) under the plot, Jominy Predictor also predicts the hardness and phase fraction profiles as functions of depth.
The DilotFit Parameter definition allows the starting values and the upper and lower parameter values to be defined for fitting data to the DANTE phase transformation model.
The DilotFit Experimental Data definition is used to load a data file containing experimental dilatometry data. Phase transformation data (temperature, time, and amount of phase formed) can also be generated using 3rd party software.
The DilotFit Controls definition allows the maximum time step and maximum temperature change to be defined.
Fitting Type: Allows strain or phase fraction formed to be used as the fitting criteria. Generally, Strain is used for dilatometry data and Phase is used for simulated phase data from a 3rd party software.
Phase Options: Allows for the fitting of individual phases or a combination of phases (e.g., if continuous cooling dilatometry is performed).
Fitting Method: A number of fitting methods are available, depending on the type of data being fit. Each Fitting Method has corresponding Curve Fitting Method options depending on the algorithm used for fitting.
The MecFit Parameter definition allows the starting values and the upper and lower parameter values to be defined for fitting data to the DANTE mechanical model.
The MecFit Properties definition is used to define the elastic parameters (Young's modulus and Poisson's ratio) as a function of temperature. The elastic parameters are not fit from the experimental data.
The MecFit Conditions definition is used to load a data file containing experimental tension/compression data. Stress-strain data as a function of temperature and phase can also be generated using 3rd party software.
Phase Options: Allows for selection of the individual phase being fit.
Processing Method: A number of fitting and plotting methods are available, depending on the type of fitting or analysis being conducted.
The TTTFit Parameter definition allows the starting values and the upper and lower parameter values to be defined for fitting data to the DANTE phase transformation model.
The TTTFit Data definition is used to load a data file containing phase transformation data (temperature, time, and amount of phase formed). The data file can be constructed manually or by using data generated from a 3rd party software.
The TTTFit Controls definition allows the fitting method to be selected, as well as setting the number of fitting loops and the size of the time step.
The HTCFit Parameter definition allows the starting values and the upper and lower parameter values to be defined as a function of temperature for time-temperature fitting data for thermal boundary definitions.
The HTCFit Data definition is used to load a data file containing time-temperature data (Data File). A file containing the geometry of the probe or part used to gather the time-temperature data is also required (CQT File). Different surfaces can also be considered to have different HTC definitions, but must be defined prior to fitting.
The HTCFit Controls definition allows the HTC function type to be selected (time or temperature), as well as setting the number of fitting loops.
The HTCFit Ambient Temperature definition allows the ambient temperature to be defined as a constant or a function of time. The ambient temperature is not fit and must be defined prior to fitting.
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