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首页> 外文会议>Chinese Materialsonference >Effect and Mechanism of Cold-Hot Roll Bonding Process on Interfacial Bonding Properties of Aluminum/Steel Laminated Composite Plate
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Effect and Mechanism of Cold-Hot Roll Bonding Process on Interfacial Bonding Properties of Aluminum/Steel Laminated Composite Plate

机译：冷热辊键合工艺对铝/钢叠复合板界面粘合性能的影响及机理

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摘要

Low carbon steel plate and pure aluminum plate were used as raw materials, the self-developed cold-hot roll bonding technology was used to prepare aluminum/steel laminated composite plate, the flexural properties, interface diffusion layer thickness and intermetallic compounds of aluminum/steel laminated composite plates were characterized by 90° repeated bending test, OM (optical microscope), SEM (scanning electron microscope) and EDS (energy spectrum analysis), the effects of cold rolling reduction, hot rolling reduction and hot rolling temperature on the interfacial bonding properties of aluminum/steel laminated composite plates were analyzed, the influence mechanism of cold-hot roll bonding process on the interfacial bonding properties of aluminum/steel laminated composite plates was discussed. The results show that the bending resistance of aluminum/steel laminated composite plates increased with increasing the cold rolling reduction or the hot rolling reduction, and increased first and then decreased with increasing the hot rolling temperature. The effect of cold rolling reduction, hot rolling reduction and hot rolling temperature on the bending resistance increased in turn. Under the condition of cold rolling reduction of 45% and hot rolling reduction of 35-50%, when the hot rolling temperature was 400°C, the interface diffusion layer thickness of aluminum/steel laminated composite plates was 1.5-2.5 μm, no intermetallic compounds within the interface, and the interfacial bonding properties increased with increasing the interfacial diffusion layer thickness; when the hot rolling temperature was 500°C, the interface diffusion layer thickness was 3-5 μm, and the spherulite FeAl_3 phase intermetallic compound with diameter less than 5 μm distributed in the interface, the interfacial bonding properties increased with increasing the interface diffusion layer thickness; when the hot rolling temperature was 600°C, the interface diffusion layer thickness was 8-14 μm, the intermetallic compound was Fe_2Al_5 phase with 6-12 μm thickness, and the interfacial bonding properties decreased sharply.
机译：低碳钢板和纯铝板用作原料，自发光的冷热辊键合技术用于制备铝/钢叠式复合板，弯曲性能，界面扩散层厚度和金属间化合物的铝/钢层压复合板的特征在于90°重复弯曲试验，OM（光学显微镜），SEM（扫描电子显微镜）和EDS（能谱分析），冷轧缩减，热轧和热轧温度对界面粘合的影响分析了铝/钢叠叠层复合板的性能，讨论了冷热辊键合工艺对铝/钢层压复合板界面粘接性能的影响机理。结果表明，随着耐寒轧制减小或热轧减少，铝/钢层压复合板的弯曲电阻增加，并在增加热轧温度下增加，然后降低，然后减少。冷轧降低，热轧缩减和热轧温度对弯曲电阻的影响依次增加。在冷轧条件下45％和热轧轧制减少35-50％时，当热轧温度为400°C时，铝/钢层压复合板的界面扩散层厚度为1.5-2.5μm，没有金属间金属间界面内的化合物，并且界面粘合性能随着界面扩散层厚度的增加而增加;当热轧温度为500℃时，界面扩散层厚度为3-5μm，并且在界面中分布的直径小于5μm的球晶_3相金属间化合物，随着界面扩散层的增加而增加，界面键合性能增加厚度;当热轧温度为600℃时，界面扩散层厚度为8-14μm，金属间化合物是Fe_2Al_5相，厚度为6-12μm，界面粘合性能急剧下降。

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