Study on the microstructure and mechanical properties of medium carbon Cr-Si-Mn-Mo-V steel for cast inserted dies

LIU Jin-hai; LI Guo-lu; HAO Xiao-yan; LIU Gen-sheng

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Study on the microstructure and mechanical properties of medium carbon Cr-Si-Mn-Mo-V steel for cast inserted dies

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The microstructure and mechanical properties of cast inserted dies for automobile covering components were studied. The results show that the as-cast microstructures of cast inserted dies are composed of pearlite, martensite, bainite, and austenite; and that the annealed microstructure is granular pearlite. The mechanical properties of cast inserted dies approach that of forged inserted dies. The tensile strength is 855 MPa, the elongation is 16%, the impact toughness is 177 J/cm2, and the hardness after annealing and quenching are HRC 19 and HRC 60-62. In addition, the cast inserted dies have good hardenability. The depth of the hardening zone and the hardness after flame quenching satisfy theoperating requirements. The cast inserted dies could completely replace the forged inserted dies for making the dies of automobile covering components.

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《中国铸造》|2005年第4期|260-263|共4页
作者
LIU Jin-hai; LI Guo-lu; HAO Xiao-yan; LIU Gen-sheng;
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作者单位

School of Materials Science and Technology, Hebei University of Technology, Tianjin 300132, P. R. China;

School of Materials Science and Technology, Hebei University of Technology, Tianjin 300132, P. R. China;

School of Materials Science and Technology, Hebei University of Technology, Tianjin 300132, P. R. China;

School of Materials Science and Technology, Hebei University of Technology, Tianjin 300132, P. R. China;

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原文格式 PDF
正文语种 chi
中图分类钢的组织与性能;
关键词
steel castings; inserted die; microstructure; mechanical properties; flame quenching;

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Study on the microstructure and mechanical properties of medium carbon Cr-Si-Mn-Mo-V steel for cast inserted dies

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