scholarly journals Temperature Dependence of Low Cycle Fatigue Strength and Distinctive Feature of Fatigue Cracks of SUS 347

1974 ◽  
Vol 23 (246) ◽  
pp. 208-214 ◽  
Author(s):  
Shuji TAIRA ◽  
Motoaki FUJINO ◽  
Masayuki SUKEKAWA ◽  
Ryoichi SASAKI
Keyword(s):  
Fatigue Strength ◽  
Temperature Dependence ◽  
Distinctive Feature ◽  
Low Cycle Fatigue ◽  
Fatigue Cracks ◽  
Cycle Fatigue

Low-Cycle Fatigue Behaviour of Gas Turbine Alloys

1974 ◽  
Vol 188 (1) ◽  
pp. 321-328 ◽  
Author(s):  
W. J. Evans ◽  
G. P. Tilly
Keyword(s):  
Low Cycle Fatigue ◽  
Fatigue Cracks ◽  
High Stress ◽  
Cyclic Creep ◽  
Fatigue Curve ◽  
Fatigue Behaviour ◽  
Material Surface ◽  
Tension Stress ◽  
Cycle Fatigue ◽  
Stress Tests

The low-cycle fatigue characteristics of an 11 per cent chromium steel, two nickel alloys and two titanium alloys have been studied in the range 20° to 500°C. For repeated-tension stress tests on all the materials, there was a sharp break in the stress-endurance curve between 103 and 104 cycles. The high stress failures were attributed to cyclic creep contributing to the development of internal cavities. At lower stresses, failures occurred through the growth of fatigue cracks initiated at the material surface. The whole fatigue curve could be represented by an expression developed from linear damage assumptions. Data for different temperatures and types of stress concentration were correlated by expressing stress as a fraction of the static strength. Repeated-tensile strain cycling data were represented on a stress-endurance diagram and it was shown that they correlated with push-pull stress cycles at high stresses and repeated-tension at low stresses. In general, the compressive phase tended to accentuate cyclic creep so that ductile failures occurred at proportionally lower stresses. Changes in frequency from 1 to 100 cycle/min were shown to have no significant effect on low-cycle fatigue behaviour.

An investigation into the kinetics of low-cycle fatigue strength of steel in hydrogen and vacuum

1974 ◽  
Vol 8 (3) ◽  
pp. 326-331
Author(s):  
A. N. Romaniv ◽  
Yu. V. Zima ◽  
V. I. Tkachev ◽  
R. I. Kripyakevich
Keyword(s):  
Fatigue Strength ◽  
Low Cycle Fatigue ◽  
Cycle Fatigue ◽  
Kinetics Of
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