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| THE DISTRIBUTION OF BORON IN LOW ALLOY CAST STEELS |
| Chu Youyi;He Xinlai;Yu Zongsen;Ou Yuguang Beijing Institute of Iron and Steel Technology and Nei Monggol №. 1 Machine Works |
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Cite this article:
Chu Youyi;He Xinlai;Yu Zongsen;Ou Yuguang Beijing Institute of Iron and Steel Technology and Nei Monggol №. 1 Machine Works. THE DISTRIBUTION OF BORON IN LOW ALLOY CAST STEELS. Acta Metall Sin, 1980, 16(4): 380-490.
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Abstract The segregation and distribution of boron varied with heat-treatment in Mn-Mo-B-RE low alloy cast steels has been investigated. The influence of boron con-tent, rare earth additions and other alloying elements such as Mo upon the distri-bution of boron has been studied. It was shown that the boron segregation inthese steels is aggravated with the increase of its content. After norma1 homogeni-zation, the homogeneity of boron may be strongly affected by the segregation ofMo. In certain condition, the boron-bearing phases may precipitate either alongcertain austenite planes or at the grain boundaries to form coarse continuous networks, thus cause brittle fracture. The results also showed that rare earth elementsmay act as a fairly good protective additions for boron.
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Received: 18 April 1980
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[1] 贺信莱,褚幼义,张秀林,余宗森,李秋萍,尹熙光,金属学报,13(1977) ,235．
[2] Wilson, W. G., Elec. Furnace Conf. Proc., 31 (1973) , 154．p |
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