Fatigue characteristics of A Zr-based bulk metallic glass
REVIEWS ON ADVANCED MATERIALS SCIENCE(2008)
摘要
High-cycle fatigue (HCF) experiments were conducted on Zr(41.2) Ti(13.8) Cu(12.5) Ni(10)Be(22.5) bulk-metallic glass (BMG). The cast samples were machined into the notched fatigue specimens whose stress-concentration factor (K(t)) is 1.55 of the stress acting over the notched section. The value of K, was applied to the stress-range value and in good agreement with the numerical value obtained by our finite-element analysis (FEA). The fatigue results exhibit the fatigue-endurance limit of Zr(41.2) Ti(13.8) Cu(12.5) Ni(10)Be(22 5) to be about 30-40% of the ultimate tensile strength.
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关键词
glass,fatigue,zr-based
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