Metallurgical approaches for product development and process optimization

Manabu Takahashi, Natsuko Sugiura, Yoshiyuki Ushigami, Takuya Hara, Ryuji Uemori, Hiroyuki Shirahata, Masaki Mizoguchi, Akihiro Uenishi, Kazuhiro Kojima

研究成果: ジャーナルへの寄稿評論記事

1 引用 (Scopus)

抄録

Bainite transformation progresses with the nucleation accompanying carbon diffusion and the growth without carbon diffusion, and the increase in volume fraction is due to the successive nucleation of sub-units whose size depends on the transformation temperature and austenite strength. The heat-affected zone (HAZ) is susceptible to deterioration in toughness since the fine microstructure imparted to the steel plates during the manufacturing process is demolished. A layer in which alloying elements are depleted around other precipitates of sulfides (CuS), carbides and nitrides is also formed. In the case of carbides and nitrides, however, the rates of C and N diffusion are extremely high even at low temperatures and hence, there is not much possibility that such depleted zones will be formed. By the quantitative evaluation of element-depleted zones which have been reported on the bainite formation as well, it will become possible to control the refinement of microstructures via the utilization of intragranular transformation and to manufacture high-function and high-strength steel materials having excellent HAZ toughness.

元の言語英語
ページ(範囲)128-137
ページ数10
ジャーナルNippon Steel Technical Report
発行部数101
出版物ステータス出版済み - 11 1 2012
外部発表Yes

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Product development
Bainite
Heat affected zone
Nitrides
Toughness
Carbides
Nucleation
Carbon
Microstructure
Steel
Sulfides
Alloying elements
High strength steel
Austenite
Deterioration
Precipitates
Volume fraction
Temperature
cupric sulfide

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

これを引用

Takahashi, M., Sugiura, N., Ushigami, Y., Hara, T., Uemori, R., Shirahata, H., ... Kojima, K. (2012). Metallurgical approaches for product development and process optimization. Nippon Steel Technical Report, (101), 128-137.

Metallurgical approaches for product development and process optimization. / Takahashi, Manabu; Sugiura, Natsuko; Ushigami, Yoshiyuki; Hara, Takuya; Uemori, Ryuji; Shirahata, Hiroyuki; Mizoguchi, Masaki; Uenishi, Akihiro; Kojima, Kazuhiro.

:: Nippon Steel Technical Report, 番号 101, 01.11.2012, p. 128-137.

研究成果: ジャーナルへの寄稿評論記事

Takahashi, M, Sugiura, N, Ushigami, Y, Hara, T, Uemori, R, Shirahata, H, Mizoguchi, M, Uenishi, A & Kojima, K 2012, 'Metallurgical approaches for product development and process optimization', Nippon Steel Technical Report, 番号 101, pp. 128-137.
Takahashi M, Sugiura N, Ushigami Y, Hara T, Uemori R, Shirahata H その他. Metallurgical approaches for product development and process optimization. Nippon Steel Technical Report. 2012 11 1;(101):128-137.
Takahashi, Manabu ; Sugiura, Natsuko ; Ushigami, Yoshiyuki ; Hara, Takuya ; Uemori, Ryuji ; Shirahata, Hiroyuki ; Mizoguchi, Masaki ; Uenishi, Akihiro ; Kojima, Kazuhiro. / Metallurgical approaches for product development and process optimization. :: Nippon Steel Technical Report. 2012 ; 番号 101. pp. 128-137.
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AU - Uemori, Ryuji

AU - Shirahata, Hiroyuki

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