Fatigue crack growth in a low-alloy steel in gaseous environments

1990 ◽  
Vol 61 (10) ◽  
pp. 490-497 ◽  
Author(s):  
Wolfgang Popp ◽  
Helmut Kaesche
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Alloy Steel ◽  
Low Alloy Steel

Fatigue crack growth behavior in weld-repaired high-strength low-alloy steel

2011 ◽  
Vol 78 (9) ◽  
pp. 1862-1875 ◽  
Author(s):  
Chunguo Zhang ◽  
Stefan van der Vyver ◽  
Xiaozhi Hu ◽  
Pengmin Lu
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Alloy Steel ◽  
High Strength ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
Fatigue Crack Growth Behavior ◽  
Low Alloy Steel

Further Development of a Model for Predicting Corrosion Fatigue Crack Growth in Reactor Pressure Vessel Steels

1987 ◽  
Vol 109 (3) ◽  
pp. 340-346 ◽  
Author(s):  
J. D. Gilman
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Alloy Steel ◽  
High Stress ◽  
Time Dependent ◽  
Crack Advance ◽  
Low Alloy Steel ◽  
Time Rate ◽  
Paris Law

Analysis of fatigue crack growth data for low-alloy steel shows that the influence of cyclic frequency in simulated LWR environments can be interpreted as the superposition of a time-dependent, corrosion-assisted crack growth rate upon an increment predicted by a Paris law. The time-dependent component increases monotonically to a maximum of about 6×10−5 mm/s as stress cycling becomes more aggressive. A useful measure of aggressiveness is the average time rate of crack advance due to the Paris law component alone; i.e., AΔKn × frequency. The result suggests that current ASME Code methods for flaw assessment are highly conservative in some regimes of stress and frequency, but there is a possibility of growth rates well above the ASME XI, Appendix A curves in a very low-frequency, high-stress regime. An upper bound to the time rate of corrosion-assisted crack growth in low-alloy steel is well supported by the data. The threshold conditions for the onset of this high rate are less well defined and require further investigation.

Mechanisms of fatigue crack growth in low alloy steel

1973 ◽  
Vol 21 (5) ◽  
pp. 639-648 ◽  
Author(s):  
R.O Ritchie ◽  
J.F Knott
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Alloy Steel ◽  
Low Alloy Steel

Impact fatigue crack growth behaviors of high strength low alloy steel

1984 ◽  
Vol 26 (1) ◽  
pp. R19-R24 ◽  
Author(s):  
Hideaki Nakayama ◽  
Tsuneshichi Tanaka
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Alloy Steel ◽  
High Strength ◽  
Low Alloy Steel ◽  
Impact Fatigue
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