微钙高硬高韧结构钢的研究

An Investigation of Macro-Calcium Steel with High-Hardness and High-Toughness

摘要: 本文研究了一种新型的高硬度(HRC>58),高韧性(a_k ≥ 40J/cm²)的结构钢的化学成分及热处理对冲击韧性的影响,实验结果表明,微量钙对改善钢在淬火-低温回火态的冲击韧性有重要作用,铬含量及铜/硅比对冲击韧性也有一定的影响。

Abstract: 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 (a_k> 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.