Temperature effect on dwell-fatigue crack propagation behavior of novel tempered martensitic ferritic steel G115
Engineering Fracture Mechanics(2020)
Abstract
•da/dN remained constant as increased from 625 to 650 °C for 0-/60-s dwell tests.•da/dN increased with increasing temperature for the 600-s dwell tests.•FCG has a transgranular cracking mode, regardless of the temperature/load level.•CFCG is transgranular at low/high; it is mixed fracture mode at middle.
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Key words
G115 steel,Creep–fatigue,Crack propagation,Temperature
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