Effect of Heat Treatment on High-Temperature Low-Cycle Fatigue Behavior of Nickel-Based GH4169 Alloy

2019 ◽  
pp. 41-47
Author(s):  
Xu-Min Zhu ◽  
Xian-Cheng Zhang ◽  
Shan-Tung Tu ◽  
Run-Zi Wang ◽  
Xu Zeng
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Cycle Fatigue ◽  
Gh4169 Alloy

High-temperature low-cycle fatigue behavior and microstructural evolution of an improved austenitic ODS steel

2018 ◽  
Vol 33 (12) ◽  
pp. 1814-1821 ◽  
Author(s):  
Ankur Chauhan ◽  
Dimitri Litvinov ◽  
Tim Gräning ◽  
Jarir Aktaa
Keyword(s):  
High Temperature ◽  
Microstructural Evolution ◽  
Low Cycle Fatigue ◽  
Fatigue Behavior ◽  
Cycle Fatigue ◽  
Ods Steel ◽  
Image Position

Abstract

High-Temperature Low-Cycle Fatigue Behavior of MarBN at 600 °C

2016 ◽  
Vol 138 (4) ◽  
Author(s):  
Richard A. Barrett ◽  
Eimear M. O'Hara ◽  
Padraic E. O'Donoghue ◽  
Sean B. Leen
Keyword(s):  
High Temperature ◽  
Low Cycle Fatigue ◽  
Kinematic Hardening ◽  
Fatigue Behavior ◽  
Strain Range ◽  
Material Model ◽  
Cyclic Softening ◽  
Cyclic Strength ◽  
Cycle Fatigue ◽  
Viscoplastic Material

This paper presents the high-temperature low-cycle fatigue (HTLCF) behavior of a precipitate strengthened 9Cr martensitic steel, MarBN, designed to provide enhanced creep strength and precipitate stability at high temperature. The strain-controlled test program addresses the cyclic effects of strain-rate and strain-range at 600 °C, as well as tensile stress-relaxation response. A recently developed unified cyclic viscoplastic material model is implemented to characterize the complex cyclic and relaxation plasticity response, including cyclic softening and kinematic hardening effects. The measured response is compared to that of P91 steel, a current power plant material, and shows enhanced cyclic strength relative to P91.

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