Effect of Copper and Tin on Hot Ductility of Ultra-low and 0.2% Carbon Steels

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著者

    • NAGASAKI Chihiro
    • Department of Metallurgy, School of Engineering, The University of Tokyo
    • KIHARA Junji
    • Department of Metallurgy, School of Engineering, The University of Tokyo

抄録

The hot ductility of ultra-low carbon steels and 0.2 % plain carbon steels containing copper and/or tin has been investigated at elevated temperatures ranging from ferrite region to lower austenite region and at various strain rates. Ultra-low carbon steels generally exhibit good ductility regardless of copper and tin additions except for the lower austenite temperature range, where the addition of tin decreases the ductility slightly. The plain carbon steel containing 1.0 % copper also exhibits good ductility, except for a ductility trough around 1050 K and at 10<sup>-2</sup> s<sup>-1</sup>. Recrystallization results in the improvement of ductility above 1180 K and at 10<sup>-2</sup>s<sup>-1</sup>. The plain carbon steel containing 0.2 % tin shows good ductility at 200 s<sup>-1</sup>, but exhibits a ductility trough in the lower austenite temperature range below 1 s<sup>-1</sup>. At the strain rate of 10<sup>-2</sup>s<sup>-1</sup>, the embrittlement takes place most severely at 1080 K, which corresponds to the transition temperature from austenite to ferrite. The embrittlement with intergranular fracture occurs in the specimen with low reduction in area. Initial cracking is observed at grain boundaries without proeutectoid ferrite. The addition of tin can prevent grain boundary migration or dynamic recrystallization by its grain boundary segregation, which leads to decrease in ductility.

収録刊行物

  • ISIJ international

    ISIJ international 37(5), 523-530, 1997-05-15

    The Iron and Steel Institute of Japan

参考文献:  22件中 1-22件 を表示

  • Additives and Materials Properties

    LLEWELLYN D. T.

    The Royal Soc. 69, 1980

    被引用文献1件

  • <no title>

    VALLOMOY J. A.

    Ind. Heat. 52, 34, 1985

    被引用文献1件

  • <no title>

    SUZUKI H. G.

    Trans. Iron Steel Inst. Jpn. 22, 48, 1982

    被引用文献12件

  • <no title>

    ABUSHOSHA R.

    Mater. Sci. Technol. 7, 1101, 1991

    被引用文献2件

  • <no title>

    SMITH D.

    J. Iron Steel Inst. 210, 412, 1972

    被引用文献1件

  • <no title>

    MELFOLD D. A.

    Philos. Trans. R. Soc. (London) A 295, 89, 1980

    被引用文献1件

  • <no title>

    HANNERZ N. E.

    Trans. Iron Steel Inst. Jpn. 25, 149, 1985

    被引用文献2件

  • <no title>

    ROSSARD C.

    Rev. Metall 56(II), 175, 1959

    被引用文献1件

  • <no title>

    JACKSON W. J.

    Philos. Trans. R. Soc. (London) A 295, 125, 1980

    被引用文献1件

  • <no title>

    MINTZ B.

    Mater. Sci. Technol. 11, 474, 1995

    被引用文献1件

  • <no title>

    NAGASAKI C.

    Trans. Iron Steel Inst. Jpn. 27, 506, 1987

    被引用文献2件

  • <no title>

    LUTON M. J.

    Acta Metall 17, 1033, 1969

    被引用文献3件

  • <no title>

    OUCHI C.

    Trans. Iron Steel Inst. Jpn. 22, 543, 1982

    被引用文献6件

  • <no title>

    ANDRADE H. L.

    Metall. Trans. 14A, 1967, 1983

    被引用文献5件

  • <no title>

    SEAH M. P.

    Practical Surface Analysis by Auger and X-ray Photoelectron Spectroscopy 247, 1983

    被引用文献1件

  • <no title>

    HILLERT M.

    J. Iron Steel Inst. 205, 539, 1967

    被引用文献3件

  • <no title>

    SPEIGHT E. A.

    Met. Sci. J. 6, 57, 1972

    被引用文献1件

  • <no title>

    SEAH M. P.

    Proc. R. Soc. (London) A 335, 191, 1973

    被引用文献2件

  • <no title>

    ARITA M.

    Z. Metallkd. 72, 244, 1981

    被引用文献1件

  • <no title>

    ROTHMAN S. J.

    J. Appl. Phys. 39, 5041, 1968

    被引用文献1件

  • <no title>

    HASEBE M.

    Calphad 4, 83, 1980

    DOI 被引用文献4件

  • Hot Ductility of High Purity Steels Containing Niobium.

    Sricharoenchai Prasonk , Nagasaki Chihiro , Kihara Junji

    ISIJ International 32(10), 1102-1109, 1992

    J-STAGE 被引用文献3件

被引用文献:  2件中 1-2件 を表示

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