| 连铸小方坯的组织与性能研究 |
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| 引用本文： | 傅广瑞,郑贤淑,丛扬. 连铸小方坯的组织与性能研究[J]. 大连理工大学学报, 1993, 0(2) |
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| 作者姓名： | 傅广瑞 郑贤淑 丛扬 |
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| 作者单位： | 大连理工大学铸造工程研究中心，大连理工大学铸造工程研究中心，大连理工大学铸造工程研究中心 大连重型机器厂 |
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| 摘 要： |
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| 关 键 词： | 连铸坯 宏观组织 力学性能 凝固速度 |
Study of structure and property of continuous casting bullit |
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| Fu Guangrui,Zheng Xianshu,Cong Yang. Study of structure and property of continuous casting bullit[J]. Journal of Dalian University of Technology, 1993, 0(2) |
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| Authors: | Fu Guangrui Zheng Xianshu Cong Yang |
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| Abstract: | The hot cracking of the continuous casting bullit is connected with its macrostructure and mechanical property burnt. The macrostructure and the mechanical property of 0. 13 wt- %C continuous casting bullit was investigated. The results are as follows: 1) the classical representation of the casting bullit shows three distinct zones, a peripherial region of small equiaxed grains, a columnar zone, and a central equiaxed zone. The rapid increase of the under cooling layer thickness is the criterion of the transformation from the columnar zone to central equiaxed zone; 2) The hardness decreases with the reducing of the solidification speed; 3) The tensile strength decreases gradually from the peripherial equiaxed maximum principal strain zone to central equiaxed zone ,and increases with the drop of the temperature. |
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| Keywords: | continuous casting bullit macrostructure mechanical property solidification rate |
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