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Materials Algorithms Project
Program Library

Function MAP_STEEL_TIMTEMP

Provenance of code.
Purpose of code.
Specification.
Description of subroutine's operation.
References.
Parameter descriptions.
Error indicators.
Accuracy estimate.
Any additional information.
Example of code
Auxiliary subroutines required.
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Provenance of Source Code

G.I. Rees,
Phase Transformations Group,
Department of Materials Science and Metallurgy,
University of Cambridge,
Cambridge, U.K.

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Purpose

Gives the time for any given temperature as a function of the characteristic time.

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Specification

Language:	FORTRAN
Product form:	Source code

DOUBLE PRECISION FUNCTION MAP_STEEL_TIMTEMP(TCC, DELT)

DOUBLE PRECISION TCC, DELT

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The thermal cycle of the weld is assumed to be past its peak. As a function of the characteristic time Delta, MAP_STEEL_TIMTEMP gives the time for any temperature, with zero time corresponding to 800°C.

Equation

where tcc is the input temperature and t₀₀ is set within the program to be 70°C.

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References

None supplied.

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Parameters

Input parameters

TCC - real: TCC is the given temperature (in centigrade).
DELT - real: DELT is the characteristic time Delta (in seconds).

Output parameters

MAP_STEEL_TIMTEMP - real function: MAP_STEEL_TIMTEMP is the time for temperature TCC (in seconds).

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Error Indicators

None.

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Accuracy

No information supplied.

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Further Comments

Called by MAP_STEEL_MICRO if natural weld-type cooling is being used rather than cooling that is linear with time.

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Example

1. Program text

       DOUBLE PRECISION TCC, DELT, MAP_STEEL_TIMTEMP, TIMX
       READ (5,*) TCC, DELT
       TIMX = MAP_STEEL_TIMTEMP(TCC, DELT)
       WRITE (6,10) TIMX
10     FORMAT ('Time is ',D13.5,' seconds')
       STOP
       END