1 School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110178, Liaoning, China 2 Beijing Institute of Aeronautical Materials, Beijing 100095, China 3 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China
Effect of Al22Si/ZL102 bimetal interface fabricated by extrusion at near-eutectic temperature
1 School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110178, Liaoning, China 2 Beijing Institute of Aeronautical Materials, Beijing 100095, China 3 School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China
ժҪ The Al22Si/ZL102 bimetal was designed and prepared by extrusion at near-eutectic temperature. The properties and fracture behaviors of different surface treatments between oxide film and zinc coating were compared between the Al22Si and ZL102 bimetal. The average bonding strength of bimetal with intermittent oxide film interface was about 89.3 MPa, which is higher than that of the bimetal fabricated by zinc coating method (about 76.3 MPa). During the process of extrusion, the oxidation film was extruded to crush and the metal was extruded through the micro-cracks of the oxidation film, then the two surfaces were joined together. Altogether, the results showed that extrusion at near-eutectic temperature is favorable for achieving a high-quality metallurgical bonded interface.
Abstract��The Al22Si/ZL102 bimetal was designed and prepared by extrusion at near-eutectic temperature. The properties and fracture behaviors of different surface treatments between oxide film and zinc coating were compared between the Al22Si and ZL102 bimetal. The average bonding strength of bimetal with intermittent oxide film interface was about 89.3 MPa, which is higher than that of the bimetal fabricated by zinc coating method (about 76.3 MPa). During the process of extrusion, the oxidation film was extruded to crush and the metal was extruded through the micro-cracks of the oxidation film, then the two surfaces were joined together. Altogether, the results showed that extrusion at near-eutectic temperature is favorable for achieving a high-quality metallurgical bonded interface.
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Jun-feng Zhao,Shan-guang Liu,Xiao-guang Yuan,*,Jian-fei Sun,**,Hong-jun Huang, Fu-yang Cao,Hong-xian Shen,Yu-long Wang. Effect of Al22Si/ZL102 bimetal interface fabricated by extrusion at near-eutectic temperature[J]. �й������ڿ���, 2017, 24(4): 469-474.
Jun-feng Zhao,Shan-guang Liu,Xiao-guang Yuan,*,Jian-fei Sun,**,Hong-jun Huang, Fu-yang Cao,Hong-xian Shen,Yu-long Wang. Effect of Al22Si/ZL102 bimetal interface fabricated by extrusion at near-eutectic temperature. Chinese Journal of Iron and Steel, 2017, 24(4): 469-474.
2017, Vol. 24 
