Determination of α / γ phase boundaries in the Fe-Cr-Ni-Mn quaternary system with a diffusion-multiple method

I. Shuro, S. Kobayashi, T. Nakamura, Kaneaki Tsuzaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The phase relationships between the ferrite phase (α) and the austenite phase (γ) were investigated in the iron-rich comer of the Fe-Cr-Mn-Ni quaternary system at 1000°C. The phase boundary between the α and γ phases was determined using a diffusion-multiple technique. In this technique, three end members, FeCr, FeCrMn and FeCrNi alloys, were coupled inside a metal tube, and then heat treated at 1300°C for 24h to create a microstructural state with a composition gradient of Cr, Ni and Mn within the composition range of the end members. This was followed by long time heat treatment at 1000°C for a period of 240 h to attain equilibrium states between the γ and α phase in the composition range. The phase boundary between the γ single phase field and the γ+α two-phase field was found to slightly shift in a way to expand the γ single phase field when the manganese content was increased from 0 to 5 wt%. The shift of the phase boundary was not obvious at chromium contents above 20 wt% and nickel contents above 8 wt%. These results indicate that manganese is a weak austenitizer at low chromium and nickel contents.

Original languageEnglish
Title of host publication8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
PublisherJohn Wiley and Sons Inc.
Pages577-582
Number of pages6
ISBN (Print)9781632660008
Publication statusPublished - Jan 1 2013
Event8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 - Waikoloa, HI, United States
Duration: Aug 4 2013Aug 9 2013

Publication series

Name8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
Volume1

Other

Other8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
CountryUnited States
CityWaikoloa, HI
Period8/4/138/9/13

Fingerprint

Phase boundaries
Chromium
Manganese
Nickel
Chemical analysis
Austenite
Ferrite
Iron
Metals
Heat treatment

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Cite this

Shuro, I., Kobayashi, S., Nakamura, T., & Tsuzaki, K. (2013). Determination of α / γ phase boundaries in the Fe-Cr-Ni-Mn quaternary system with a diffusion-multiple method. In 8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 (pp. 577-582). (8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8; Vol. 1). John Wiley and Sons Inc..

Determination of α / γ phase boundaries in the Fe-Cr-Ni-Mn quaternary system with a diffusion-multiple method. / Shuro, I.; Kobayashi, S.; Nakamura, T.; Tsuzaki, Kaneaki.

8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8. John Wiley and Sons Inc., 2013. p. 577-582 (8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8; Vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shuro, I, Kobayashi, S, Nakamura, T & Tsuzaki, K 2013, Determination of α / γ phase boundaries in the Fe-Cr-Ni-Mn quaternary system with a diffusion-multiple method. in 8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8. 8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8, vol. 1, John Wiley and Sons Inc., pp. 577-582, 8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8, Waikoloa, HI, United States, 8/4/13.
Shuro I, Kobayashi S, Nakamura T, Tsuzaki K. Determination of α / γ phase boundaries in the Fe-Cr-Ni-Mn quaternary system with a diffusion-multiple method. In 8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8. John Wiley and Sons Inc. 2013. p. 577-582. (8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8).
Shuro, I. ; Kobayashi, S. ; Nakamura, T. ; Tsuzaki, Kaneaki. / Determination of α / γ phase boundaries in the Fe-Cr-Ni-Mn quaternary system with a diffusion-multiple method. 8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8. John Wiley and Sons Inc., 2013. pp. 577-582 (8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8).
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