High temperature, low cycle fatigue of IN-100 superalloy I: Influence of temperature on the low cycle fatigue behaviour

Réger, Mihály; Rémy, Luc

doi:10.1016/0921-5093(88)90049-4

Cited by 42 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been well documented that for strain-controlled low-cycle fatigue, the fatigue life of superalloys is considerably influenced by such test parameters as temperature, strain rate, cyclic frequency, cyclic waveform, and hold time. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] Generally, increasing the temperature, decreasing the cyclic frequency, or introducing a hold time would lead to a substantial reduction of low-cycle fatigue life. [1][2][3][4][5][6][7][8][9][10][11][12][13] Rao et al [14] observed in their study on an INCOLOY* 800H alloy that the unbalanced-strain waveform tests exhibited shorter fatigue lives than those using symmetrical-strain waveforms.…”

Section: Introductionmentioning

confidence: 99%

The low-cycle fatigue and fatigue-crack-growth behavior of HAYNES® HR-120 alloy

Chen

Liaw

McDaniels

et al. 2003

Metall Mater Trans A

View full text Add to dashboard Cite

The low-cycle fatigue and fatigue-crack-growth behavior of the HAYNES HR-120 alloy was investigated over the temperature range of 24°C to 980°C in laboratory air. The result showed that increasing the temperature usually led to a substantial decrease in the low-cycle fatigue life. The reduction of fatigue life could be attributed to oxidation and dynamic strain-aging (DSA) processes. The strain vs fatigue-life data obtained at different temperatures were analyzed. It was also found that the fatigue-crack-growth rate per cycle generally increased with increasing temperature and R ratio (R ϭ min / max , where min and max are the applied minimum and maximum stresses, respectively). The relationship between the stress-intensity-factor range and fatigue-crack-growth rate was determined. Scanning-electron-microscopy (SEM) examinations of the fracture surfaces revealed that the fatigue cracks initiated and propagated predominantly in a transgranular mode.

show abstract

Section: Introductionmentioning

confidence: 99%

The low-cycle fatigue and fatigue-crack-growth behavior of HAYNES® HR-120 alloy

Chen

Liaw

McDaniels

et al. 2003

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…Since these components are always subjected to repeated thermal stresses, high temperature low cycle fatigue failure is the major factor affecting the service life of the turbine blades. Extensive works have been done on some superalloys in order to reveal the relationship between the cyclic frequency, [1][2][3][4] stain rate, [5][6][7][8] waveform, 9) strain range, [10][11][12] hold period, [13][14][15][16] predeformation, 17,18) environment 4,[19][20][21] and temperature 7,[22][23][24][25] on the cyclic stress response, deformation mode and fatigue life during high temperature low cyclic fatigue. It can be realized that the temperature-and timedependent processes may often be associated with a substantial reduction in the fatigue life because of increasing temperature, decreasing cyclic frequency, or the introduction of hold period and predeformation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Strain Amplitude on Dislocation Structure of M963 Superalloy during High-Temperature Low Cycle Fatigue

Zheng

Sun

et al. 2006

Mater. Trans.

View full text Add to dashboard Cite

An investigation was made on the strain-controlled low cycle fatigue (LCF) of a cast Ni-base superalloy M963 over a wide total strain range of 0.15-0.6% at a temperature range from 700 to 950 C in air. Correlations between dislocation structure and the testing temperature and applied strain amplitude were enabled through transmission electron microscopy (TEM) observation. At a low temperature region (700 and 800 C), dislocation shearing 0 precipitates by dislocation pairs and stacking faults at medium and high strain amplitudes, and a well-defined dislocation network at low total strain amplitudes were evident. At a high temperature region (900 and 950 C), dislocations by-passing 0 precipitates was the main deformation mode.

show abstract

“…6(e). Oxide layers have high contents of aluminum and titanium, so this gives rise to a depletion of γ′ phase along the fatigue crack at high temperature [25]. Oxidation seems to decreases fatigue life by means of affecting crack initiation and growth behavior at high temperature as 927°C.…”

Section: Fracture and Deformation Modesmentioning

confidence: 99%