Resumo

DIAZ-CEDRE, Eduardo M. et al. Cause of failure of a 316 stainless steel pipe elbow in a cooling circuit of a reactor. Min. Geol. [online]. 2018, vol.34, n.4, pp. 456-469. ISSN 1993-8012.

This research deals with a study to determine the cause of cracking and later broke of an accessory made of stainless 316 steel in the cooling circuit of a reactor. Several characterization techniques were applied such as: optical emission spectrometry, sweep optical and electronic microscopy, including microanalysis with EDAX. It was concluded that the main cause of the failure are related to a mixing deterioration mechanism by intercrystalline corrosion sensitive, mechanic fatigue and stress corrosion cracking.

Palavras-chave : break gear; stainless steel 316; corrosion; mechanical fatigue.

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