The Investigation of the Effects of Loading Rate and Stress Concentration Factors on the Notch Properties of Three Sheet Alloys at Subzero Temperatures

摘要

The effect of theoretical stress concentration factors, and loading rates at 26°, -78°, and-196°G are presented for 301XH stainless steel, Rene 41, and Vasco Jet-1000 sheet materials.nThe unnotched specimens, tested at room temperature, were not appreciably affected by loading rate; however, some effects were observed for the specimens tested at sub-zero temperatures. The loading rate had some effect on the notched tensile specimens at all test temperatures. The temperature effect was more pronounced on the notched tensile specimen at the fastest loading rate.