期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 8, 期 5, 页码 3936-3949出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2019.07.002
关键词
Duplex stainless steel; Intragranular austenite; HAZ; Optical microscopy; Transmission electron microscopy; Mechanical properties
资金
- Fundacao de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ) in Brazil [09/2014-PVE-CAPES]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) in Brazil [09/2014-PVE-CAPES]
- FAPERJ [E-26/201-535/218]
- CAPES [PVE 88881.064968/2014-01]
Some features of the austenite micro structural evolution have been reviewed at the simulated HAZs (Heat Affected Zones) in a duplex stainless steel. The evolution of the different morphological forms of austenite was quantified in the microstructures for each simulated heat input. A detailed study of the micro structural parameters in the present study, allowed justifying the performance of the volume fractions corresponding to the three austenite morphologies on the HAZ mechanical properties and pitting corrosion resistance. Transmission electron microscopy showed the predominance of specific orientation relationships between the small intragranular austenite precipitates and ferrite considering the nitrogen content in the alloy and the transformation route. (C) 2019 The Authors. Published by Elsevier B.V.
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