Norm

NEN-ISO 19819:2004 en

Metallische materialen - Trekproef in vloeibare helium

48,19

Over deze norm

Status Definitief
Aantal pagina's 12
Gepubliceerd op 01-08-2004
Taal Engels
This International Standard specifies the method of tensile testing of metallic materials in liquid helium (boiling point at 269 °C or 4,2 K, designated as 4 K) and defines the mechanical properties that can be determined. This International Standard may also apply to tensile testing at cryogenic temperatures (less than 196 °C or 77 K), which requires special apparatus, smaller specimens, and concern for serrated yielding, adiabatic heating and strain rate effects. To conduct a tensile test at 4 K in accordance with this International Standard, the specimen installed in a cryostat is fully submerged in liquid helium (He) and tested using displacement control at a nominal strain rate of 10 3 s 1 or less. Tests using force control or higher strain rates are not considered.

Details

ICS-code 77.040.10
Nederlandse titel Metallische materialen - Trekproef in vloeibare helium
Engelse titel Metallic materials - Tensile testing in liquid helium

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