| 铸态含无碳化物贝氏体中锰钢 |
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| 引用本文： | 姜启川,李章,王守实,崔东焕,何镇明.铸态含无碳化物贝氏体中锰钢[J].机械工程学报,1991,27(6):6-11. |
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| 作者姓名： | 姜启川 李章 王守实 崔东焕 何镇明 |
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| 作者单位： | 吉林工业大学 |
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| 摘 要： | 中锰钢（含1.0%～1.8%C，5.0%～9.0%Mn，0.6%～1.5%Si）在铸态下即可得到无碳化物贝氏体相。在冷却的过程中，当冷却速度大于40℃/min时，室温组织为奥氏体与碳化物；当冷却速度小于20℃/min时，室温组织为无碳化物贝氏体、珠光体、奥氏体与碳化物。无碳化物贝氏体主要是在624～200℃之间形成。在砂型中浇注壁厚大于15mm的铸件时，即可行到大量无碳化物贝氏体，该铸钢具有较佳的硬度，韧度与耐磨性。
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| 关 键 词： | 贝氏体 锰钢 铸态组织 |
AS-CAST CARBIDE-FREE BAINITE CONTAINING MEDIUM MANGANESE STEEL |
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| Jiang Qichuan,Li Zhang,Wang Shoshi,Cui Donghuan,He Zhengming.AS-CAST CARBIDE-FREE BAINITE CONTAINING MEDIUM MANGANESE STEEL[J].Chinese Journal of Mechanical Engineering,1991,27(6):6-11. |
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| Authors: | Jiang Qichuan Li Zhang Wang Shoshi Cui Donghuan He Zhengming |
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| Affiliation: | Jilin University of Technology |
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| Abstract: | It has been found that carbide-free bainite exists in an as-cast medium manganese steel (1.0%~1.8%C, 5.0%~9.0%Mn, 0.6%~1.5%Si) structure. The microstructure of the steel at room temperature consists of austenite and carbide when cooling rate I higher than 40℃/min, and of carbide-free bainite, pearlite, austenite and carbide when cooling rate is less than 20℃%/min. Carbide-free bainite mainly formed between 624~200℃ during cooling. A lot of carbide-free bainite is obtained in sand mold castings with sections thicker than 15mm. The hardness, toughness and wear resistance of the carbide-free bainite containing s cast medium manganese steel are very good. |
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