scholarly journals Cyclic deformation behavior and low cycle fatigue life of normalized medium carbon steel with hydrogen charging

2011 ◽  
Vol 10 ◽  
pp. 1176-1183 ◽  
Author(s):  
Y. Tsuchida ◽  
T. Watanabe ◽  
G. Suzuki ◽  
H. Yano
Keyword(s):  
Fatigue Life ◽  
Carbon Steel ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Low Cycle Fatigue ◽  
Medium Carbon Steel ◽  
Cycle Fatigue ◽  
Medium Carbon ◽  
Hydrogen Charging

Probabilistic Model of the Multiaxial Low-Cycle Fatigue Life Prediction

2012 ◽  
Vol 479-481 ◽  
pp. 2135-2140
Author(s):  
Lei Wang ◽  
Tian Zhong Sui ◽  
Hang Zhao ◽  
En Guo Men
Keyword(s):  
Fatigue Life ◽  
Carbon Steel ◽  
Probabilistic Model ◽  
Life Prediction ◽  
Low Cycle Fatigue ◽  
Medium Carbon Steel ◽  
Multiaxial Fatigue ◽  
Fatigue Life Prediction ◽  
Cycle Fatigue ◽  
Medium Carbon

First, several widely used models of the multiaxial low-cycle fatigue life prediction based on the critical plane approach were presented in this paper, and the predicted results of these models for a medium carbon steel under the condition of multiaxial low-cycle fatigue loading were compared. Second, the stochastic expressions and probability density function curves of the fatigue performance parameters were obtained by probabilistic analysis of the medium carbon steel fatigue data. Finally, the probabilistic model of the multiaxial fatigue life prediction was simulated by Monte Carlo Method, which should provide a basis for the reliability analysis of engineering components subjected to the multiaxial complex loads.

Low Cycle Fatigue of FeAl (42 at. % Al) at Room Temperature

1996 ◽  
Vol 460 ◽  
Author(s):  
D. B. Hanes ◽  
R. Gibala
Keyword(s):  
Fatigue Life ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Room Temperature ◽  
Low Cycle Fatigue ◽  
Surface Coatings ◽  
Protective Film ◽  
Cycle Fatigue ◽  
Environmental Embrittlement ◽  
Tension And Compression

ABSTRACTThe monotonie mechanical behavior in tension and compression of FeAl has been well documented. However, very little work has been done on the cyclic deformation behavior of this material. In this work, the behavior of FeAl (42 at. % Al) under low cycle fatigue was studied, including the effects of test environments and surface coatings. It was found that the fatigue life of this alloy is limited by environmental embrittlement. This embrittlement process can be equally well prevented by deformation in an oxygen environment or by coating the alloy with a protective film. The type of film applied appears to have little effect. Similar results were seen in monotonie testing.

Low Cycle Fatigue of 9-12% Cr Steel at Elevated Temperature: Cyclic Deformation Behavior and Life Assessment

2016 ◽  
Author(s):  
Peng Zhao ◽  
Fu-Zhen Xuan ◽  
De-Long Wu
Keyword(s):  
Fatigue Life ◽  
Elevated Temperature ◽  
Cyclic Deformation ◽  
Deformation Behavior ◽  
Fatigue Testing ◽  
Low Cycle Fatigue ◽  
Life Assessment ◽  
Control Mode ◽  
Cycle Fatigue ◽  
Wide Range

Fatigue testing for an important turbine rotor material (X12CrMoWVNbN10-1-1 steel) was carried out over a wide range of strain and stress amplitudes at 873K. Particular attention was paid to the effect of control mode on the cyclic deformation behavior and life assessment at elevated temperature. Two main domains were observed depending both on the strain and stress amplitudes, where the effect of control mode was different. In the micro plastic deformation domain, the cyclic softening is slight and there is no clear difference in fatigue behavior between the stress and strain modes. In the plastic damage regime, stress cycling causes more significant softening or damage than strain cycling. The dependence of damage behavior on the evolution of dislocation substructure was focused. On the other hand, it is not possible to use strain based life model to predict fatigue life with the test results under a different control mode. A unified energy-based model is proposed based upon the deformation mechanism and the experimental results, which can assess the low cycle fatigue life with different control modes. The results obtained in this study could have significant implications in the design of structures.

Sign in / Sign up

Export Citation Format

Share Document