Precipitation induced recrystallization -Clarification of new recrystallization phenomena and its application to texture control

• Project/Area Number: 19360310
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: FURUHARA Tadashi Tohoku University, 金属材料研究所, 教授 (50221560)
• Co-Investigator(Kenkyū-buntansha): MIAYMOTO Goro 東北大学, 金属材料研究所, 助教 (60451621) ; 紙川 尚也 東北大学, 金属材料研究所, 助教 (30530894)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2008: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2007: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
• Keywords: 表面処理 / 析出物 / EBSD / 窒化物 / 鉄鋼材料

Research Abstract

The effects of initial α grain boundary and lath martensite structure on precipitation induced recrystallization(PIR) have been investigated. The growth of recrystallized grains is inhibited at the boundary misoriented larger than 5 degrees, resulting in the formation of new ferrite grain at these boundaries. The PIR was found to appear in the austenitic high-Cr alloy in which austenite is stabilized by the Ni addition. This implies that the PIR can takes place generally regardless of crystal structure of the matrix when the volume fraction of precipitate is higher.

Research Products

• [Journal Article] Precipitation behavior of alloy nitrides during plasma nitriding in Fe-0.6mass%C-1mass%M (M=Al, Cr) martensitic steels (2009)
  • Author(s): Y. Tomio, S. Kitsuya, K. Oishi, K. Hono, G. Miyamoto, T. Furuhara
  • Journal Title: Journal of the Japan Society for heat treatment 49 Pages: 161-164
  • Peer Reviewed
• [Journal Article] Effects of pre-existing boundaries on microstructure of plasma-nitriding of Fe-18%Cr alloys (2009)
  • Author(s): Goro Miyamoto, Atsushi Yonemoto, Yusuke Tanaka, Tadashi Maki, Tadashi Furuhara
  • Journal Title: ISIJ International 49 Pages: 1796-1800
  • Peer Reviewed
• [Journal Article] Precipitation behavior of alloy nitrides during plasma nitriding in Fe-0.6mass%C-1mass%M(M=Al, Cr)martensitic steels (2009)
  • Author(s): Y.Tomio, S.Kitsuya, K.Oishi, K.Hono, G.Miyamoto, T.Furuhara
  • Journal Title: Journal of the Japan Society for heat treatment 49 Pages: 161-164
  • Peer Reviewed
• [Journal Article] プラズマ窒化したマルテンサイト鋼における合金窒化物の微細析出 (2008)
  • Author(s): 富尾悠索, 木津谷茂樹, 宮本吾郎, 古原忠
  • Journal Title: 熱処理 48 Pages: 125-126
  • NAID: 10024349914
  • Peer Reviewed
• [Journal Article] Microstructure and growth kinetics of nitrided zone in plasma-nitrided Fe-Cr alloys (2007)
  • Author(s): G. Miyamoto, A. Yonemoto, Y. Tanaka, T. Maki, T. Furuhara
  • Journal Title: ISIJ International 47 Pages: 1491-1496
  • NAID: 10027025509
  • Peer Reviewed
• [Presentation] 純鉄の浸窒焼入れ組織 (2010)
  • Author(s): 宮本吾郎, 千葉真, 紙川尚也, 古原忠
  • Organizer: 鉄鋼協会第159回春季講演大会
  • Place of Presentation: つくば大学
  • Year and Date: 2010-03-28
• [Presentation] 低合金鋼のプラズマ窒化における析出及び表面硬化挙動 (2009)
  • Author(s): 古原忠, 富尾悠索, 宮本吾郎
  • Organizer: 鉄鋼協会第158回秋季講演大会
  • Place of Presentation: 京都大学
  • Year and Date: 2009-09-15
• [Presentation] Quantitative observation of nano-sized particle distribution in a nitrided Fe-1Cr alloy (2009)
  • Author(s): Y. Tomio G. Miyamoto, T. Furuhara
  • Organizer: 鉄鋼協会第157回春季講演大会
  • Place of Presentation: 東京工業大学
  • Year and Date: 2009-03-30
• [Presentation] Plasma Nitriding Behavior of Fe-C-M Ternary Martensitic Steels (2008)
  • Author(s): Y. Tomio, S. Kitsuya, K. Oishi, K. Hono, G. Miyamoto, T. Furuhara
  • Organizer: International Federation of Heat Treatment and Surface Treatment
  • Place of Presentation: Kobe, Japan
  • Year and Date: 2008-10-30
• [Presentation] Plasma Nitriding Behavior of Fe-C-M Ternary Martensitic Steels (2008)
  • Author(s): Y. Tomio, S. Kitsuya, K. Oishi, K. Hono, G. Miyamoto, T. Furuhara
  • Organizer: Intarnational Federation of Heat Treatment and Surface Treatment
  • Place of Presentation: 神戸国際会議場
  • Year and Date: 2008-10-30
• [Presentation] High temperature nitriding behavior of Fe-1mass%M(M=Al,Cr,V,Ti) binary alloys (2008)
  • Author(s): 青田洋人, 富尾悠索, 宮本吾郎, 古原忠
  • Organizer: 鉄鋼協会第156回秋季講演大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2008-09-24
• [Presentation] High temperature nitriding behavior of Fe-lmass%M(M=A1, Cr, V, Ti) binary alloys (2008)
  • Author(s): 青田洋人、富尾悠索、宮本吾郎, 古原忠
  • Organizer: 鉄鋼協会第156回秋季講演大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2008-09-24
• [Presentation] プラズマ窒化した鉄合金における析出組織 (2008)
  • Author(s): 古原忠, 富尾悠索, 宮本吾郎
  • Organizer: 日本鉄鋼協会第155回春季講演大会
  • Place of Presentation: 武蔵工業大学
  • Year and Date: 2008-03-27
• [Presentation] プラズマ窒化した鉄合金における析出組織 (2008)
  • Author(s): 古原忠, 富尾悠索, 宮本吾郎
  • Organizer: 日本鉄鋼協会第155回春季講演大会(武蔵工業大学)
  • Place of Presentation: 武蔵工業大学
  • Year and Date: 2008-03-27
• [Presentation] 高炭素マルテンサイト鋼のプラズマ窒化挙動 (2007)
  • Author(s): 富尾悠索, 木津谷茂樹, 宮本吾郎, 古原忠
  • Organizer: 日本熱処理技術協会第65回秋季講演大会
  • Place of Presentation: 室蘭工業大学
  • Year and Date: 2007-10-03
• [Presentation] 高炭素マルテンサイト鋼のプラズマ窒化挙動 (2007)
  • Author(s): 富尾 悠索, 木津谷 茂樹, 宮本 吾郎, 古原 忠
  • Organizer: 日本熱処理技術協会第65回秋季講演大会
  • Place of Presentation: 室蘭工大
  • Year and Date: 2007-10-03
• [Presentation] Microstructure of plasma-nitrided high carbon martensitic steels (2007)
  • Author(s): S. Kitsuya, Y. Tomio, G. Miyamoto, T. Furuhara
  • Organizer: 日本鉄鋼協会第154回秋季講演大会
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-18
• [Presentation] Microstructure of plasma-nitrided high carbon martensitic steels (2007)
  • Author(s): S. Kitsuya, Y. Tomio, G. Miyamoto, T. Furuhara
  • Organizer: 日本鉄鋼協会, 第154回秋季講演大会
  • Place of Presentation: 岐阜大学
  • Year and Date: 2007-09-18