Effect of Interface on Mechanical Property of Steel-mushy Al-20Sn Bonding Plate

武汉理工大学学报-材料科学版(英文版), 2006, 21(1): 60-62.

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1.Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, China

2.Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, China

3.Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, China

4.Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, China

5.Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

6.Anshan Automobile Fittings Factory, Anshan 114014, China

基金项目: Foundation of the Ministry of Education of China 北京市自然科学基金中国科学院资助项目(50274047,50304001) 北京交通大学校科研和教改项目

Effect of Interface on Mechanical Property of Steel-mushy Al-20Sn Bonding Plate

Keywords： interfacial structure

The ratio of Fe-Al compound at interCace, which could determine the quantity of Fe-Al compound at the interface of steel-mushy Al-20Sn bonding plate, was used to characterize the interfacial structure of steel-mushy Al-20Sn bonding plate quantitatively.The effect of ratio of Fe-Al compound at interface on interfacial shear strength was investigated perfectly.The results show that the relationship between ratio of Fe-Al compound at interface and interfacial shear strength is S = 3.3 + 1.91 t -0.0135 t2 ( where t is ratio of Fe-Al compound at interface and S is interfacial shear strength ).When the ratio of Fe-Al compound at interface is 71% , the largest interfacial shear strength 70.9 MPa is got.This reasonable ratio of Fe-Al compound at interface is a quantitative criterion of interfacial embrittlement.When the ratio of Fe-Al compound at interface is higher than 71%, interfacial embrittlement will occur.

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Effect of Interface on Mechanical Property of Steel-mushy Al-20Sn Bonding Plate

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