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

研究成果: 著書/レポートタイプへの貢献会議での発言

抜粋

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.

元の言語英語
ホスト出版物のタイトル8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
出版者John Wiley and Sons Inc.
ページ577-582
ページ数6
ISBN(印刷物)9781632660008
出版物ステータス出版済み - 1 1 2013
イベント8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8 - Waikoloa, HI, 米国
継続期間: 8 4 20138 9 2013

出版物シリーズ

名前8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
1

その他

その他8th Pacific Rim International Congress on Advanced Materials and Processing 2013, PRICM 8
米国
Waikoloa, HI
期間8/4/138/9/13

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

これを引用

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. : 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; 巻数 1). John Wiley and Sons Inc..