Rapid extrapolation of high-temperature low-cycle fatigue curves for a nickel superalloy

被引：1

作者：

Viespoli L.M. ^{[1
]}

Berto F. ^{[1
]}

机构：

[1] Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim

来源：

Material Design and Processing Communications | 2019年 / 1卷 / 06期

关键词：

creep-fatigue interaction; low-cycle fatigue; nickel superalloy; time ductility exhaustion;

D O I：

10.1002/mdp2.104

中图分类号：

学科分类号：

摘要：

In many industrial applications, ranging from the energy, the aviation to the microelectronics field, metallic alloys are subjected to fatigue load at elevated temperatures. The detrimental influence of temperature and creep deformation damage on the structural performance of such components has for several decades posed a serious challenge to the work of scientists and engineers, and the methods developed to account for creep fatigue interaction require extensive testing and work for being calibrated and implemented. In the present letter, the authors propose a quick iterative procedure to translate the fatigue curve of an alloy in order to consider the reduction of resistance caused by creep damage. The method is validated against high-temperature fatigue results for the Haynes 230 commercial nickel superalloy showing promising results. © 2019 The Authors. Material Design & Processing Communications published by John Wiley & Sons Ltd

引用

共 5 条

[1]

Robinson E.L., Effect of temperature variation on the long-time strength of steels, Trans ASME, 74, 5, pp. 777-780, (1952)

[2]

Larson F.R., Miller J., Time-temperature relationship for rupture and creep stresses, Trans ASME, 74, pp. 765-771, (1952)

[3]

Smith K.N., Watson P., Topper T.H., A stress strain function for the fatigue of metals, J Mater JMLSA, 5, pp. 767-778, (1970)

[4]

Barrett P.R., Ahmed R., Menon M., Hassan T., Isothermal low-cycle fatigue and fatigue-creep of Haynes 230, Int J Solids Struct, 88-89, pp. 146-164, (2016)

[5]

Ahmed R., Barrett P.R., Hassan T., Unified viscoplasticity modeling for isothermal low-cycle fatigue and fatigue-creep stress-strain responses of Haynes 230, Int J Solids Struct, 88-89, pp. 131-145, (2016)

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