Li Chengji, Lu Feng, Cao Fengyu, Zhang Yongxiang, Chen Yonggang. An Investigation of Macro-Calcium Steel with High-Hardness and High-Toughness[J]. Chinese Journal of Engineering, 1993, 15(1): 38-42. DOI: 10.13374/j.issn1001-053x.1993.01.007
Citation: Li Chengji, Lu Feng, Cao Fengyu, Zhang Yongxiang, Chen Yonggang. An Investigation of Macro-Calcium Steel with High-Hardness and High-Toughness[J]. Chinese Journal of Engineering, 1993, 15(1): 38-42. DOI: 10.13374/j.issn1001-053x.1993.01.007
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An Investigation of Macro-Calcium Steel with High-Hardness and High-Toughness

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  • The effects of chemical composition and heat-treatment on the impact toughness of a new type of micro-calcium steel with high-hardness (HRC> 58) and high-toughness (ak> 40J/cm2) have been investigated. The results show that the micro-calcium play an important role in the improving of impact toughness of quened-tempered steels. The impact toughness of steels were also controlled by the content of chromium and the ratio of copper/silicon in steels.
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