| 含铜无取向电工钢中析出相及其析出机理 |
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| 引用本文： | 陈海林,曾燕屏,李友国,周凡.含铜无取向电工钢中析出相及其析出机理[J].北京科技大学学报,2011,33(3):302-307. |
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| 作者姓名： | 陈海林 曾燕屏 李友国 周凡 |
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| 作者单位： | 北京科技大学材料科学与工程学院;清华大学材料科学与工程系; |
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| 基金项目： | 国家自然科学基金资助项目(No.50971026); 国家高技术研究发展计划资助项目(No.2008AA03Z503) |
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| 摘 要： | 研究了含铜低碳低硅无取向电工钢中的析出相及其析出机理.由能谱(EDS)及选区电子衍射(SAED)分析可知,铁素体基体上存在的大量弥散分布的等轴状析出相为类B2结构的铜.这些铜析出相的析出机理可以是一般析出、位错析出、台阶机理相间析出和弓出机理相间析出:一般析出在550、650和750℃三个等温温度均可发生;位错析出只发生在较低的等温温度(550℃),此时析出相呈特殊的平行短列状;台阶机理相间析出也可在上述三个等温温度下发生,但650℃等温时最有利于台阶机理相间析出,此时析出相平直列状分布;弓出机理相间析出只发生在较高的等温温度(750℃),析出相弯曲列状分布.
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| 关 键 词： | 低碳钢 硅钢 铜 析出相 析出 织构 |
Precipitates and precipitation mechanism in non-oriented electrical steel containing copper |
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| CHEN Hai-lin,ZENG Yan-ping,LI You-guo,ZHOU Fan.Precipitates and precipitation mechanism in non-oriented electrical steel containing copper[J].Journal of University of Science and Technology Beijing,2011,33(3):302-307. |
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| Authors: | CHEN Hai-lin ZENG Yan-ping LI You-guo ZHOU Fan |
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| Institution: | CHEN Hai-lin1),ZENG Yan-ping1),LI You-guo2),ZHOU Fan2)1) School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China2) Department of Materials Science and Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | Precipitates in low-carbon low-silicon non-oriented electrical steel containing Cu were studied and the precipitation mechanism was analyzed by means of energy dispersive spectrometry(EDS) and selected area electron diffraction(SAED).It is found that the equiaxed precipitates of Cu with B2-like structure distribute dispersively in the non-oriented electrical steel.The precipitation mechanism involves general precipitation,dislocation precipitation,interphase precipitations formed by the ledge mechanism and ... |
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| Keywords: | low carbon steel silicon steel copper precipitates precipitation textures |
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