| Ratio of Fe-Al compound at interface of steel-backed Al-graphite semi-solid bonding plate |
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| 作者姓名： | 张鹏 杜云艳 刘汉武 张君 曾大本 巴立民 |
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| 作者单位： | Department of Mechanical Engineering Beijing Jiaotong University，Department of Mechanical Engineering，Beijing Jiaotong University，Department of Mechanical Engineering，Beijing Jiaotong University，Department of Mechanical Engineering，Beijing Jiaotong University，Department of Mechanical Engineering，Tsinghua University，Anshan Automobile Fittings Factory，Beijing 100044，China，Beijing 100044，China，Beijing 100044，China，Beijing 100044，China，Beijing 100084，China，Anshan 114014，China |
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| 基金项目： | 教育部新世纪优秀人才支持计划;高等学校博士学科点专项科研项目;北京交通大学校科研和教改项目 |
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| 摘 要： | The ratio of Fe-Al compound at the bonding interface of solid steel plate to Al-7graphite slurry was used to characterize the interfacial structure of steel-Al-7graphite semi-solid bonding plate quantitatively. The relationship between the ratio of Fe-Al compound at interface and bonding parameters (such as preheat temperature of steel plate, solid fraction of Al-7graphite slurry and rolling speed) was established by artificial neural networks perfectly. The results show that when the bonding parameters are 516 ℃ for preheat temperature of steel plate, 32.5% for solid fraction of Al-7graphite slurry and 12 mm/s for rolling speed, the reasonable ratio of Fe-Al compound corresponding to the largest interfacial shear strength of bonding plate is obtained to be 70.1%. This reasonable ratio of Fe-Al compound is a quantitative criterion of interfacial embrittlement, namely, when the ratio of Fe-Al compound at interface is larger than 70.1%, interfacial embrittlement will occur.
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| 关 键 词： | 焊接界面 Fe-AI化合物 人工神经网络 石墨 |
| 收稿时间： | 8 May 2006 |
| 修稿时间： | 2006-05-082006-07-09 |
Ratio of Fe-Al compound at interface of steel-backed Al-graphite semi-solid bonding plate |
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| Zhang Peng , Du Yun-hui , Liu Han-wu , Zhang Jun , Zeng Da-ben and Ba Li-min.Ratio of Fe-Al compound at interface of steel-backed Al-graphite semi-solid bonding plate[J].Journal of Central South University of Technology,2007,14(1):7-12. |
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| Authors: | Zhang Peng Du Yun-hui Liu Han-wu Zhang Jun Zeng Da-ben and Ba Li-min |
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| Affiliation: | 1. Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China; 3. Anshan Automobile Fittings Factory, Anshan 114014, China |
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| Abstract: | The ratio of Fe-Al compound at the bonding interface of solid steel plate to Al-7graphite slurry was used to characterize
the interfacial structure of steel-Al-7graphite semi-solid bonding plate quantitatively. The relationship between the ratio
of Fe-Al compound at interface and bonding parameters (such as preheat temperature of steel plate, solid fraction of Al-7graphite
slurry and rolling speed) was established by artificial neural networks perfectly. The results show that when the bonding
parameters are 516 °C for preheat temperature of steel plate, 32.5% for solid fraction of Al-7graphite slurry and 12 mm/s
for rolling speed, the reasonable ratio of Fe-Al compound corresponding to the largest interfacial shear strength of bonding
plate is obtained to be 70.1%. This reasonable ratio of Fe-Al compound is a quantitative criterion of interfacial embrittlement,
namely, when the ratio of Fe-Al compound at interface is larger than 70.1%, interfacial embrittlement will occur.
FOundation item: Project(50054) supported by the Program for New Century Excellent Talents in University; project(20060004020) supported by
the Research Fund for the Doctoral Program of Higher Education; project(3062017) supported by the Natural Science Foundation
of Beijing, China; project(2004SZ007) supported by the Foundation of Beijing Jiaotong University |
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| Keywords: | bonding interface ratio of Fe-Al compound at interface artificial neural network |
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