Vamas Tests of Structural Materials at Liquid Helium Temperature
A series of international, interlaboratory comparisons of tensile and fracture-toughness tests for prestandardization and refining of these test procedures at liquid-helium temperature using the same materials has been coordinated under the Versailles Project on Advanced Materials and Standards (VAMAS). High-strength stainless steels, YUS170 and SUS316LN, and a titanium alloy were used for this program. Future plans include testing an aluminum alloy and a composite material. Tensile and fracture-toughness properties were much less scattered under the limited testing conditions that were used in this program.
KeywordsFracture Toughness Ultimate Tensile Strength Interlaboratory Comparison Average Yield Strength Average Ultimate Tensile Strength
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