Effect of solute copper on hardness and ductile-to-brittle transition in α-iron

Junaidi Syarif, Toshiyuki Hoshino, Toshihiro Tsuchiyma, Setsuo Takaki

研究成果: ジャーナルへの寄稿記事

17 引用 (Scopus)

抄録

Effects of solute Cu on strengthening and ductile-to-brittle transition (DBT) of α-iron have studied for Fe-(0 to approximately 2)mass%Cu alloys. The Fe-Cu alloys exhibit massive ferritic transformation on water-quenching from solution treatment temperature. With increasing Cu content, the massive ferrite grains were refined and the hardness was raised. Effect of the solid solution hardening is predominant to the strengthening, but the refinement of massive ferrite grains does not affect so much. Charpy impact tests showed that Cu addition substantially lowers DBT temperature of α-iron. The embrittleness at low temperature was caused by the onset of cleavage cracks at ferrite grain boundaries where deformation twins impinged. Copper in solution suppresses the formation of deformation twins, and this results in the shift of DBT temperature to lower side.

元の言語英語
ページ(範囲)558-562
ページ数5
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
86
発行部数8
DOI
出版物ステータス出版済み - 1 1 2000

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Ferrite
Copper
ferrites
solutes
hardness
Iron
Hardness
Strengthening (metal)
iron
copper
Superconducting transition temperature
Charpy impact test
transition temperature
hardening
Hardening
cleavage
Quenching
Solid solutions
Grain boundaries
solid solutions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

これを引用

Effect of solute copper on hardness and ductile-to-brittle transition in α-iron. / Syarif, Junaidi; Hoshino, Toshiyuki; Tsuchiyma, Toshihiro; Takaki, Setsuo.

:: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 巻 86, 番号 8, 01.01.2000, p. 558-562.

研究成果: ジャーナルへの寄稿記事

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abstract = "Effects of solute Cu on strengthening and ductile-to-brittle transition (DBT) of α-iron have studied for Fe-(0 to approximately 2)mass{\%}Cu alloys. The Fe-Cu alloys exhibit massive ferritic transformation on water-quenching from solution treatment temperature. With increasing Cu content, the massive ferrite grains were refined and the hardness was raised. Effect of the solid solution hardening is predominant to the strengthening, but the refinement of massive ferrite grains does not affect so much. Charpy impact tests showed that Cu addition substantially lowers DBT temperature of α-iron. The embrittleness at low temperature was caused by the onset of cleavage cracks at ferrite grain boundaries where deformation twins impinged. Copper in solution suppresses the formation of deformation twins, and this results in the shift of DBT temperature to lower side.",
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