Fatigue crack initiation behavior in embrittled austenitic–ferritic stainless steel
Source abstract
Abstract
Abstract Fatigue crack initiation behavior in duplex stainless steel was studied in the embrittled condition (aging at 475 °C for 100 h) by interrupting fatigue tests conducted at different Δσ/2 values, identifying the crack initiation sites and relating them to the crystallographic parameters obtained from electron back scattered diffraction scans. From the fatigue crack initiation studies conducted at Δσ/2 = 400 and 500 MPa, it was concluded that the crack initiation sites are the slip markings corresponding to {1 1 1} plane in austenite at 400 MPa and more cracks were observed to initiate at twin boundaries in austenite at 500 MPa in the aged condition.
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Research context
OpenAlex topics: Microstructure and Mechanical Properties of Steels · Hydrogen embrittlement and corrosion behaviors in metals · Fatigue and fracture mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
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