Low-Temperature Flow and Fracture Behavior of Tantalum
Previous studies on the mechanical behavior of tantalum have dealt with the effects of testing temperature [1–4], alloying elements [5–7], notch sensitivity , grain size , and twinning , These studies have provided extensive information which has been significant toward obtaining a better understanding of the mechanical properties of this metal. However, further studies concentrated upon the basic tensile plastic flow and fracture parameters at low testing temperatures are needed to obtain a more comprehensive understanding of such factors as the temperature dependence of flow stress, work-hardening, and fracture behavior. Also, since tantalum appears anomalous because of its lack of low-temperature brittleness compared to other body-centered cubic metals, a comparison of the flow stress and strain parameters with other metals of the same crystal structure may help to explain such an anomaly.
KeywordsZinc Quartz Furnace Magnesium Helium
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