非晶合金的热塑性成型以及在微透镜模具中的应用VIP专享

非晶合金的热塑性成型及其在微透镜模具中的应用摘 要非晶合金是一种在快冷条件下形成的金属材料，相对传统晶态合金，非晶合金具有优异的力学性能，但是由于它的冷脆性使得非晶合金难以进行传统的机加工，这难加工的特性使得非晶合金难以在工程上有广泛的应用。然而非晶合金在其过冷液相区中具有超塑性，在这个温度区间中非晶合金可以很容易的成型出各种复杂的结构，为了克服非晶合金难加工的缺陷，本文对非晶合金的热塑性成型工艺进行研究。本文在传统的非晶合金热塑性成型工艺的基础上，提出了两种非晶合金的新型热塑性成型工艺。首先做出多组非晶合金热塑性微成形成型试验，对试验样品表面微结构进行表征，分析表征结果，提出新型的非晶合金高温热塑性成型工艺，将非晶态合金在过冷液相区上的超塑性和晶态合金的良好高温稳定性进行有机的结合，使样品上成型出微结构的同时具有较好的高温稳定性，提出非晶合金在高温模具上应用的可能性。最后提出一种非晶合金的三维微孔阵列成型工艺，这种成型工艺可以仅利用简单的钢球便可以成型出复杂的三维微孔阵列结构，随后提出了三维微孔阵列非晶合金在三维微透镜阵列模具上的应用。关键词：非晶合金；热塑性成型；微结构；微透镜阵列；模具ⅠThermoplastic Forming of Amorphous Alloy and it’s Application in Microlens MouldAbstractAmorphous alloy is a kind of metal material formed under the condition of fast cooling. Compared with the traditional crystalline alloy, amorphous alloy has excellent mechanical properties. However, due to its cold brittleness, it is difficult for the amorphous alloy to carry out the traditional machining. However, amorphous alloy has superplasticity in its supercooled liquid phase zone, and in this temperature range, amorphous alloy can be easily formed into various complex structures. In order to overcome the defects of difficult processing of amorphous alloy, this paper studied the thermoplastic forming process of amorphous alloy.Based on the traditional thermoplastic forming process of amorphous alloy, two new thermoplastic forming processes of amorphous alloy are...