Microstructures of cast-duplex stainless steel after long-term aging

Conference · Tue Oct 01 04:00:00 EDT 1985

OSTI ID:6050274

Chung, H M; Chopra, O K

Microstructures of cast-duplex stainless steels subjected to long-term aging either in the laboratory or during in-reactor service have been characterized and compared by TEM, SEM, and optical microscopy. The microstructural characteristics have been correlated with the impact failure behavior of the material. G-phase, ', and an unidentified Type X precipitate were responsible for the ferrite-phase embrittlement. Precipitation of M23C6 carbides on austenite-ferrite boundaries further degraded the reactor-aged material.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6050274
• Report Number(s): CONF-850902-9; ON: TI86005550
• Country of Publication: United States
• Language: English

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