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RISOn the Use of a Stress-Independent Threshold Stress Term in Creep Life Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The concept of effective stress, where the applied stress is reduced by a resisting or threshold stress, is often used in fatigue and creep strain rate models, but seldom in single-line equation creep life models. Recently, ...
Effect of Heat-to-Heat Variability on Long-Term Creep Rupture Lifetime Predictions of Single Step Aged Wrought Haynes 282 Alloy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The impact of a weaker heat of the wrought form of Haynes 282 nickel superalloy on predicted 100,000 h creep rupture strength (CRS) and hence maximum allowable working stress (MAWS) was determined by correlating the creep ...
Statistical Comparison of Creep-Rupture Lifetime Predictions of Single and Two-Step Aged Wrought Haynes 282 Alloy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paired and Welch's t-tests were used to determine if statistically significant differences exist between the predicted creep rupture life of single- and two-step aged wrought Haynes 282 nickel superalloy. Both tests ...