Assessment of tensile residual stress mitigation in alloy 22 welds due to laser peening

Article Abstract:

A study is conducted to examine the effects of laser peening on alloy 22, which is the proposed material for use as the outer layer on the spent-fuel nuclear waste canisters to be stored at Yucca Mountain. The results of the laser-peening experiments on alloy 22 base material and a sample 33 nm thick double-V groove butt-weld made with gas tungsten arc welding (GTAW) are presented.

All Other Miscellaneous Electrical Equipment and Component Manufacturing, Lasers, Lasers & Related Equip, Usage, Influence, Residual stresses, Optical properties, Laser

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Investigation into cumulative damage rules to predict fretting fatigue life of Ti-6AI-4V under two-level block loading condition

Article Abstract:

The effects of amplitude loading on fretting fatigue behavior of titanium alloy, Ti-6Al-4V were examined. Fretting fatigue tests were carried out under constant stress amplitude and three different two-level block loading conditions that is high-low (Hi-Lo), Low-High (Lo-Hi), and repeated block of high and low stress amplitude.

Iron and Steel Mills, Blast furnaces and steel mills, Steel Sheet, Measurement, Fatigue testing machines, Fatigue (Materials), Materials, Stress analysis (Engineering), Titanium alloys, Mechanical properties, Properties, Sheet-steel

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