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Temperature effect on dwell-fatigue crack propagation behavior of novel tempered martensitic ferritic steel G115

Zhengxin Tang,Hongyang Jing,Lianyong Xu,Dazhao Chi,Lei Zhao,Yongdian Han,Yalin Gao

Engineering Fracture Mechanics（2020）

Cited 5|Views4
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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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