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文章探讨了加温加压(热压)法将多层非晶合金薄带复合的工艺及复合机制。热压复合工艺参数包括气氛、温度、压力、时间、加压速度及样品表面处理。选择了合适的热压工艺参数。用激光干涉膨胀仪测量了样品的纵向热膨胀系数。用金相显微镜观察了剥离后热压样品表面,并用俄歇谱仪对该表面进行了成分(O、Si、B)深度分布分析。认为非晶合金在一定温度区域内具有超塑性效应,热压复合需在此温度区内进行,其过程包括与温度有关的塑性变形、原子扩散、表面活化及氧化硅胶合过程。这几个过程是相互联系的。热压法不能使非晶带结合界面形成晶体(再结晶)及非晶体结合,因而不可能获得强固的结合。
The article discusses the heating and pressing (hot pressing) method of multi-layer amorphous alloy ribbon composite process and composite mechanism. Hot pressing composite process parameters include the atmosphere, temperature, pressure, time, pressure rate and sample surface treatment. Select the appropriate hot pressing process parameters. The longitudinal coefficient of thermal expansion of the sample was measured with a laser interference dilatometer. The surface of the sample was observed by a metallographic microscope after being peeled off, and the depth profile of the surface (O, Si, B) was analyzed by Auger spectroscopy. It is considered that the amorphous alloy has a superplastic effect in a certain temperature range and the hot pressing and recombination need to be carried out in this temperature region. The process includes temperature-dependent plastic deformation, atom diffusion, surface activation and silica cementing. These processes are interrelated. Hot pressing does not allow the formation of crystals (recrystallization) and non-crystal bonding at the amorphous belt bonding interface, making it impossible to obtain a strong bond.