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Ratio of Fe-Al compound at interface of steel-backed Al-graphite semi-solid bonding plate

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【Author】 ZHANG Peng, DU Yun-hui, LIU Han-wu, ZHANG Jun, ZENG Da-ben, BA Li-min (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)

【机构】 Department of Mechanical Engineering Beijing Jiaotong University； Department of Mechanical Engineering； Beijing Jiaotong University； Tsinghua University； Anshan Automobile Fittings Factory； Beijing 100044； China； Beijing 100084； Anshan 114014；

【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.更多还原

【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 ℃ 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.更多还原

【关键词】 bonding interface； ratio of Fe-Al compound at interface； artificial neural network；
【Key words】 bonding interface； ratio of Fe-Al compound at interface； artificial neural network；

【基金】 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

【文献出处】 Journal of Central South University of Technology ,中南工业大学学报(英文版) , 编辑部邮箱 ,2007年01期

【分类号】TG456.9
【被引频次】5
【下载频次】51

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