| EA4T车轴钢中斑点状偏析的原因分析 |
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| 引用本文： | 张春红,李玉全,杨接明,梁益龙.EA4T车轴钢中斑点状偏析的原因分析[J].理化检验(物理分册),2011(1):64-66. |
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| 作者姓名： | 张春红 李玉全 杨接明 梁益龙 |
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| 作者单位： | 贵州大学材料与冶金学院;首钢贵阳特殊钢有限责任公司; |
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| 基金项目： | 国家科技支撑计划项目(2007BAE11B01); 黔科合重大专项(20066031) |
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| 摘 要： | 采用宏观检验、化学成分分析、金相检验、工艺分析以及炉数统计等手段对EA4T车轴钢中存在斑点状偏析的原因进行了分析。结果表明:该斑点状偏析为合金成分正偏析,原料粒度、模温、钢液过热度以及钢锭锥度等冶炼参数不合理是主导因素。
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| 关 键 词： | EA4T车轴钢 斑点状偏析 合金成分 正偏析 冶炼参数 |
Reason Analysis on Speckle Segregation of EA4T Railway Locomotive Axles Steel |
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| ZHANG Chun-hong ,LI Yu-quan ,YANG Jie-ming ,LIANG Yi-long.Reason Analysis on Speckle Segregation of EA4T Railway Locomotive Axles Steel[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2011(1):64-66. |
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| Authors: | ZHANG Chun-hong LI Yu-quan YANG Jie-ming LIANG Yi-long |
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| Affiliation: | ZHANG Chun-hong 1,2,LI Yu-quan 2,YANG Jie-ming 1,LIANG Yi-long 1 (1.College of Materials and Metallurgy,Guizhou University,Guiyang 550003,China,2.Shougang-Guiyang Special Steel Co.Ltd.,Guiyang 550005,China) |
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| Abstract: | The reason of speckle segregation in EA4T railway locomotive axles steel was analyzed by means of macroscopic examination,chemical composition analysis,metallographic examination,process analysis and furnace number statistios,etc.The results showed that the speckle segregation was the alloy composition positive segregation,and the main reason was the improper smelting parameters including material granularity,temperature and taper of ingot moulds and molten steel superheat. |
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| Keywords: | EA4T railway locomotive axles steel speckle segregation alloy composition positive segregation smelting parameter |
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