| 基于聚类分析的20钢球化组织识别方法 |
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| 引用本文： | 李萍,李会玲,李喜孟,谭家隆,王来.基于聚类分析的20钢球化组织识别方法[J].石油化工设备,2006,35(1):23-26. |
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| 作者姓名： | 李萍 李会玲 李喜孟 谭家隆 王来 |
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| 作者单位： | 大连理工大学材料工程系,辽宁大连,116024 |
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| 摘 要： | 以球化状态不同的20钢时效样品作为研究对象,分析并讨论系统聚类方法用于耐热钢高温时效组织状态无损评价的可行性、实现方式及可靠性。结果表明,选择回波信号系数作为组织识别的特征是可行的,应用该特征的聚类分析方法能够较好地实现对球化形态的无损评价,识别率不低于85%。同类样品组织结构的相似性以及异类形态的差异是进行正确识别的关键。
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| 关 键 词： | 耐热钢 聚类分析 无损评价 球化组织 |
| 文章编号： | 1000-7466(2006)01-0023-04 |
| 修稿时间： | 2005年8月2日 |
Identification of 20 steel spheroidized microstructure based on cluster analysis |
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| LI Ping,LI Hui-ling,LI Xi-meng,TAN Jia-long,WANG Lai.Identification of 20 steel spheroidized microstructure based on cluster analysis[J].Petro-Chemical Equipment,2006,35(1):23-26. |
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| Authors: | LI Ping LI Hui-ling LI Xi-meng TAN Jia-long WANG Lai |
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| Abstract: | The objective of this study is to provide a contribution to the non-destructive identification of aged microstructure at high temperature.A group of samples aged at different spheroidized level are studied.A series of features are obtained from echo signal by means of FFT(Fast Fourier Transformation).The feasibility and reliability of the identification of 20 steel spheroidized microstructure based on cluster are discussed.The result shows that the cluster analysis is available for the non-destructive evaluating of 20 steel microstructure aged,and the reliability is no less than 85%.The similarity of microstructure in congener samples and the diversification in the alien are the basis to improve the cluster effect. |
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| Keywords: | heat-resisting steel cluster analysis non-destructive evaluation spheroidized microstructure |
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