Abstract
Creep rupture behavior of Grade 91 heat-resistant steel used for steam cooler under uniaxial and multiaxial state of stress was investigated. Creep tests were conducted at the temperature of 923K under the stress 125MPa. The notch root radii (r) of doubled circumferentially U-notched specimens were 0.6 and 6 mm. The creep rupture life of Grade 91 steel was found to increase with the increasing of notch acuity ratio. The creep rupture mechanism was investigated based on the SEM fractography analysis.
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CITATION STYLE
Ren, F., & Tang, X. (2017). Creep behavior of Grade 91 steel under uniaxial and multiaxial state of stress. In IOP Conference Series: Materials Science and Engineering (Vol. 242). Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/242/1/012072
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