Effect of Rare Earth Metals on the Microstructure and Impact Toughness of a Cast 0.4C-5Cr-1.2Mo-1.0V Steel

この論文にアクセスする

この論文をさがす

著者

    • LAN Jie
    • School of Materials Science and Engineering, Shanghai Jiao Tong University
    • HE Junjie
    • School of Materials Science and Engineering, Shanghai Jiao Tong University
    • DING Wenjiang
    • School of Materials Science and Engineering, Shanghai Jiao Tong University
    • WANG Qudong
    • School of Materials Science and Engineering, Shanghai Jiao Tong University
    • ZHU Yanping
    • School of Materials Science and Engineering, Shanghai Jiao Tong University

抄録

Die-making technology directly produced by precise casting technology such as investment and ceramic casting method was a promising technology due to its lower manufacture cost and shorter period in comparison with traditional die-making technology. However, the poor mechanical performance of cast materials, especially low impact toughness, was a main obstacle to the application of cast dies and molds.<br>With a view to improve the impact toughness of CH13 steel (0.4C–5Cr–1.2Mo–1V steel), which was ever used to cast dies for die casting dies, rare earth was added into CH13 steel in our research. It was shown that the dendrite microstructure in CH13 steel had been ameliorated and the segregation ratios of alloying elements were decreased greatly after the addition of rare earth. Grain boundary carbides in MCH13 (CH13 + rare earth) steel had also been inhibited. The impact toughness of MCH13 steel had been improved considerably and the fractography of MCH13 displayed more plastic characteristic. Through thermodynamics and two-dimensional lattice disregistry analysis, it was demonstrated that rare earth inclusions in MCH13 steel act as the heterogeneous nuclei, weaken segregation of alloying elements and improve the impact toughness.

収録刊行物

  • ISIJ international

    ISIJ international 40(12), 1275-1282, 2000-12-15

    The Iron and Steel Institute of Japan

参考文献:  16件中 1-16件 を表示

  • <no title>

    BEELEY P. R.

    The British Foundryman 78, 289, 1985

    被引用文献1件

  • <no title>

    BEELY P. R.

    The British Foundryman 79, 441, 1986

    被引用文献1件

  • <no title>

    CLEGG J.

    The British Foundryman 80, 137, 1987

    被引用文献1件

  • <no title>

    LIU Yikuan

    Foundry Technology (Chinese) 5, 3, 1992

    被引用文献1件

  • <no title>

    TOMITA Y.

    J.Mater.Sci. 28, 853, 1993

    被引用文献1件

  • <no title>

    OHMORI Y.

    Met.Sci. 18, 31, 1984

    被引用文献1件

  • <no title>

    LIAO Qianchu

    Acta Metall.Sin.(Chinese) 15, 259, 1979

    被引用文献1件

  • <no title>

    SMITH E.

    Physical Basis of Yield and Fracture 36, 1966

    被引用文献1件

  • <no title>

    BAKER T. J.

    Mater.Sci.Technol 2, 576, 1986

    被引用文献1件

  • <no title>

    EDWARDS R. H.

    J.Appl.Mech.Trans.ASME 18, 19, 1951

    被引用文献1件

  • <no title>

    HSU T. Y.

    ISIJ Int. 38, 1153, 1998

    被引用文献1件

  • <no title>

    XU Gaungxian

    Rare Earth (Chinese) 55, 1995

    被引用文献1件

  • <no title>

    QIYONG Han

    Acta Metall.Sin.(Chinese) 18, 176, 1982

    被引用文献1件

  • <no title>

    WEI Shoukun

    Thermodynamics of Metallurgical Process (Chinese) 309, 1980

    被引用文献1件

  • <no title>

    BRAMFITT B. L.

    Metall. Trans. 1, 1987, 1970

    被引用文献13件

  • <no title>

    BEACHEM C. D.

    Metall.Trans. 4, 1999, 1973

    DOI 被引用文献2件

各種コード

ページトップへ