| 微钙高硬高韧结构钢的研究 |
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| 引用本文： | 李承基 张永祥 等. 微钙高硬高韧结构钢的研究[J]. 北京科技大学学报, 1993, 15(1): 38-42 |
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| 作者姓名： | 李承基 张永祥 等 |
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| 作者单位： | [1]北京科技大学 [2]北京机床研究所 |
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| 摘 要： | 本文研究了一种新型的高硬度（HRC＞58），高韧性（αk≥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。
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| 关 键 词： | 结构钢 高强度 高韧性 微合金化钢 |
An Investigation of Macro-Calcium Steel with High-Hardness and High-Toughness |
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| Li Chengji Lu Feng Cao Fengyu Zhang Yongxiang Chen Younggang University of Sciencc and Technology Beijing Beijing Institute of Machine Tool. An Investigation of Macro-Calcium Steel with High-Hardness and High-Toughness[J]. Journal of University of Science and Technology Beijing, 1993, 15(1): 38-42 |
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| Authors: | Li Chengji Lu Feng Cao Fengyu Zhang Yongxiang Chen Younggang University of Sciencc and Technology Beijing Beijing Institute of Machine Tool |
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| Affiliation: | Li Chengji Lu Feng Cao Fengyu Zhang Yongxiang Chen Younggang University of Sciencc and Technology Beijing Beijing Institute of Machine Tool |
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| 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 (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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| Keywords: | high-hardness and high-toughness steel micro-alloying of calcium grain boundary segregation ratio of Cu / Si |
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