Precipitation of secondary phases in super duplex stainless steel ZERON100 isothermally aged

Authors: I. Calliari, M. Pellizzari, E. Ramous

Source: Materials Science and Technology

Publisher: Maney Publishing

Abstract:

In the present paper the results of secondary phases determination and quantification in ZERON100 duplex steel, heat treated at 850–1000°C for 180–2400 s, are presented. During the isothermal heat treatments, at 850°C, the χ phase is the only phase to precipitate at α/γ boundaries and triple points, while at 900 and 950°C, χ phase is the first phase to precipitate after 180 s, followed by σ phase 300 s later. At all the temperatures the total amount of secondary phases is ∼3% after <600 s aging.

Document Type:

DOI: 10.1179/174328409X463243

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