Standard Guide for Use of Thermocouples in Elevated-Temperature Mechanical Testing

Importancia y uso:

6.1 This guide presents techniques on the use of thermocouples and associated equipment for measuring temperature in elevated-temperature mechanical testing under typical conditions. Test durations range from minutes for tension, compression, Young's modulus, and superplastic property tests to thousands of hours for creep, stress-rupture, creep rupture, notch tension, and stress-relaxation tests.

6.2 Since elevated-temperature mechanical properties are highly sensitive to temperature, users should make every effort practicable to make accurate temperature measurements and provide stable control of the test temperature. The goal of this guide is to provide users with good pyrometric practice and techniques for precise temperature control for elevated-temperature mechanical testing.

6.3 Techniques are given in this guide for maintaining a stable temperature throughout the period of test.

6.4 If the techniques of this guide are followed, the difference between indicated temperature and true temperature, as used in Test Methods E21, E111, E139, E292, E328, E2448, and Practice E209 will be reduced to the lowest practical level.

Subcomité:

E28.04

Referida por:

D6801-07R21, E0139-11R18, E0292-24, E0021-20, E0139-11R18

Volúmen:

03.01

Número ICS:

17.200.20 (Temperature-measuring instruments)

Palabras clave:

compensation; creep test; instrumentation; insulation; stress-rupture test; temperature; thermocouples; tolerance;