A metallographic examination of crack-path propagation in embrittled 12% Cr steel

A 12% Cr 422 stainless steel high-temperature steam flange bolt was extremely embrittled after approximately 30 years of service at approximately 565–590°C. The bolt microstructure is primarily Cr-rich M23C6 carbides in ferrite. Fracture was “intergranular,” along the prior austenite grain boundarie...

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Veröffentlicht in:	Materials Characterization 1997-02, Vol.38 (2), p.103-117
Hauptverfasser:	Brooks, Charlie R., Bogni, Fabio
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences CRACK PROPAGATION Cross-disciplinary physics: materials science rheology EMBRITTLEMENT Exact sciences and technology FASTENERS Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure Fatigue, embrittlement, and fracture HEAT TREATMENTS MATERIALS SCIENCE Metals. Metallurgy MICROSTRUCTURE PHASE STUDIES Physics STEAM SYSTEMS STEEL-CR12 Treatment of materials and its effects on microstructure and properties
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