Failure analysis of an AISI 316 steel pipe elbow exposed to the weather for three years after 16 years of operating at 515 °C - Moraes, Flavio Pereira de; Amaral, Emanuelle Machado; Beneduce Neto, Flavio; Padilha, Angelo Fernando (Tecnologia em Metalurgia, Materiais e Mineração, 2023)