Thermal Conductivity 16 pp 497-518 | Cite as

# Rapid Transient Method of Determining Time/Temperature-Dependent Thermal Properties Applied to ARMCO Iron and Aluminum Alloy 2024-T351

## Abstract

A rapid-transient method for determining thermal properties with a test duration of less than 35 seconds was developed. An analog-digital computer was employed to measure specimen’s transient temperatures and data reduction was also carried out using the same computer. To determine the accuracy of the method, Armco Magnetic Ingot Iron was used as a reference material; its thermal properties, as a function of temperature (30–200°C), were measured and compared with the values reported by other investigators. Due to the relatively short test duration the method is equally suitable for heat-treatable alloys whose thermal properties change with time and temperature. The as-received aluminum alloy 2024-T351 is a heat treatable or so-called precipitation-hardenable alloy with extensive commercial and industrial applications. Time variations of thermal conductivity of this alloy at a constant temperature about 177°C and its related mathematical model are reported in this paper.

## Keywords

Thermal Conductivity Thermal Property Aging Time Armco Iron Cumulative Heat## Preview

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