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Abstract

Duplex stainless steel are candidate materials for applications requiring strength, toughness and corrosion resistance. The main problem in the use of these alloys is the embrittlement that they suffer when exposed to temperatures within the range from 275 C to 475 C approximately, which is associated mainly with the spinodal decomposition of the ferritic phase in rich zones of Cr and rich zones of Fe, and also to the appearance of the G phase after long times of ageing. The mechanical behaviour of the steel AISI 329 has been investigated for ageing times up to 150000 hours at 475, 425, 375, 325 and 275 C. The study has concentrated on the changes in the monotonic and cyclic stress-strain behaviour, fracture toughness and fatigue crack propagation as a function of ageing temperature and time.

Additional information

Authors: ANGLADA GOMILA M, Departamento de Ciència dels Materials i Enginyeria Metallúrgica, Universidad Politècnica de Catalunya, Barcelona (ES);ITURGOYEN SABANDO K, Departamento de Ciència dels Materials i Enginyeria Metallúrgica, Universidad Politècnica de Catalunya, Barcelona (ES);LLANES PITARCH L, Departamento de Ciència dels Materials i Enginyeria Metallúrgica, Universidad Politècnica de Catalunya, Barcelona (ES);MATEO GARCÍA A, Departamento de Ciència dels Materials i Enginyeria Metallúrgica, Universidad Politècnica de Catalunya, Barcelona (ES);SALAN BALESTROS N, Departamento de Ciència dels Materials i Enginyeria Metallúrgica, Universidad Politècnica de Catalunya, Barcelona (ES);MATEO GARCIA A, Departamento de Ciencia dels Materials i Enginyeria Metallurgica, Universidad Politecnica de Catalunya, Barcelona (ES)
Bibliographic Reference: EUR 17886 ES (1998) 149pp., FS, ECU 25.00
Availability: Available from the (2)
ISBN: ISBN 92-828-2591-4
Record Number: 199810401 / Last updated on: 1998-03-25
Category: PUBLICATION
Original language: es
Available languages: es