| 信号特征在20钢高温时效组织状态无损评价中的应用 |
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| 引用本文： | 李萍,李喜孟,谭家隆,王来,彭连军. 信号特征在20钢高温时效组织状态无损评价中的应用[J]. 机械工程材料, 2004, 28(12): 23-25 |
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| 作者姓名： | 李萍 李喜孟 谭家隆 王来 彭连军 |
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| 作者单位： | 1. 大连理工大学材料工程系,辽宁大连,116024
2. 中国天然气股份有限公司大连石油化工分公司,辽宁大连,116023 |
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| 摘 要： | 介绍了以超声回波信号特征识别技术评价20钢时效组织形态的方法。试验结果表明：利用优选的各组特征能够实现对全部试样组织形态的良好识别和聚类，识别率不低于88．5%；应用该方法可以完成对20钢高温组织形态的无损评价。
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| 关 键 词： | 时效组织 无损评价 回波信号特征 识别和聚类 |
| 文章编号： | 1000-3738(2004)12-0023-03 |
Application of the Ultrasonic Echo Features to Non-destructive Evaluating for 20G High Temperature Aging Microstructure |
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| LI Ping,LI Xi-meng,TAN Jia-long,WANG Lai,PENG Lian-jun. Application of the Ultrasonic Echo Features to Non-destructive Evaluating for 20G High Temperature Aging Microstructure[J]. Materials For Mechanical Engineering, 2004, 28(12): 23-25 |
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| Authors: | LI Ping LI Xi-meng TAN Jia-long WANG Lai PENG Lian-jun |
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| Affiliation: | LI Ping~1,LI Xi-meng~1,TAN Jia-long~1,WANG Lai~1,PENG Lian-jun~2 |
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| Abstract: | By means of the ultrasonic echo feature, a kind of method for evaluating 20G high temperature aging microstructure is introduced. The results show that it is feasible to adopt each group of features introduced in the article to classify and cluster all specimens with no less than 88.5% discernment. |
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| Keywords: | aging microstructure non-destructive evaluating ultrasonic echo feature classify and cluster |
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