The duplex stainless steel 2205 was heat treated at 750◦C, 850◦C, and 900◦C for increasing durations of up to 10 h. The samples were investigated through light microscopy (LM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) to characterize the volume fraction and morphology of the precipitated secondary phases. The samples were then tested via flat-top cylinder indenter for mechanical characterization (FIMEC) testing to determine the yield stresses that were found to be significantly affected by the different heat treatments. The yield stress evolution with heat treatments resulted in being correlated to both the relative volumes of the secondary phases and the morphology of the σ phase. The FIMEC test proved to be capable of detecting the effects of small amounts of secondary phases on yield stress in DSS 2205 and seems to be a promising technique for industrial applications.

Angella, G., Fava, A., Montanari, R., Richetta, M., Varone, A. (2017). Flat-top cylinder indenter examination of duplex stainless steel 2205 after different heat treatments. METALS, 7(5), 178 [10.3390/met7050178].

Flat-top cylinder indenter examination of duplex stainless steel 2205 after different heat treatments

Fava A.;Montanari R.;Richetta M.;Varone A.
2017-01-01

Abstract

The duplex stainless steel 2205 was heat treated at 750◦C, 850◦C, and 900◦C for increasing durations of up to 10 h. The samples were investigated through light microscopy (LM), transmission electron microscopy (TEM), and X-ray diffraction (XRD) to characterize the volume fraction and morphology of the precipitated secondary phases. The samples were then tested via flat-top cylinder indenter for mechanical characterization (FIMEC) testing to determine the yield stresses that were found to be significantly affected by the different heat treatments. The yield stress evolution with heat treatments resulted in being correlated to both the relative volumes of the secondary phases and the morphology of the σ phase. The FIMEC test proved to be capable of detecting the effects of small amounts of secondary phases on yield stress in DSS 2205 and seems to be a promising technique for industrial applications.
2017
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-IND/21 - METALLURGIA
Settore ING-IND/15 - DISEGNO E METODI DELL'INGEGNERIA INDUSTRIALE
English
Duplex stainless steel 2205; FIMEC indentation test; Heat treatments; Secondary intermetallic phases
http://www.mdpi.com/2075-4701/7/5/178/pdf
Angella, G., Fava, A., Montanari, R., Richetta, M., Varone, A. (2017). Flat-top cylinder indenter examination of duplex stainless steel 2205 after different heat treatments. METALS, 7(5), 178 [10.3390/met7050178].
Angella, G; Fava, A; Montanari, R; Richetta, M; Varone, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/231061
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