精品文档---下载后可任意编辑Zr 基块体金属玻璃的晶化行为及力学性能的讨论的开题报告摘要：Zr 基块体金属玻璃（BMG）是一种新型的金属材料，在其非晶态下表现出优异的力学性能和物理性质。然而，由于其非晶态结构的不稳定性，BMG 易于晶化并失去其独特的性质。因此，讨论 Zr 基块体金属玻璃的晶化行为及力学性能十分重要。本讨论将通过制备一系列 Zr 基块体金属玻璃样品，并采纳 X 射线衍射（XRD）、差热分析（DSC）和扫描电子显微镜（SEM）等技术，系统讨论其晶化行为。同时，通过压缩力学测试和纳米压痕测试等手段，讨论晶化后 BMG 的力学性能变化规律。本讨论将有助于深化理解 Zr 基块体金属玻璃的固态变形机制以及晶化对其力学性能的影响，为开发新型块体金属玻璃提供重要参考。关键词：Zr 基块体金属玻璃，晶化，力学性能，压缩力学测试，纳米压痕测试Abstract:Zr-based bulk metallic glass (BMG) is a new type of metallic material that exhibits excellent mechanical properties and physical properties in its amorphous state. However, due to the instability of its amorphous structure, BMG is prone to crystallization and lose its unique properties. Therefore, it is important to study the crystallization behavior and mechanical properties of Zr-based bulk metallic glass.In this study, a series of Zr-based bulk metallic glass samples will be prepared, and X-ray diffraction (XRD), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM) techniques will be used to systematically study their crystallization behavior. At the same time, compression mechanical tests and nanoindentation tests will be used to study the change of mechanical properties of BMG after crystallization.This study will help to deepen our understanding of the solid-state deformation mechanism of Zr-based bulk metallic glass and the influence of crystallization on its mechanical 精品文档---下载后可任意编辑properties, providing important references for the development of new types of bulk metallic glasses.Keywords: Zr-based bulk metallic glass, crystallization, mechanical properties, compression mechanical test, nanoindentation test.
