精品文档---下载后可任意编辑Fe-Mn-Si 记忆合金约束态的应力诱发马氏体相变的开题报告摘要：记忆合金是一种特别的功能材料，具有形状记忆和超弹性等特别的物理机能。其中 Fe-Mn-Si 合金是最新研制出来的一种新型记忆合金，具有高形状记忆性和较好的加工性能。为了更好的理解其记忆行为，本文提出了一个新的方法——约束态的应力诱发马氏体相变。通过实验验证，发现约束态的应力会显著促进马氏体相变，进而提高记忆效应。本文将重点探讨 Fe-Mn-Si 合金的约束态应力诱发马氏体相变的机制，以及其对形状记忆性能的影响。关键词：记忆合金，Fe-Mn-Si，约束态的应力，马氏体相变，形状记忆Abstract:Memory alloy is a special functional material with unique physical properties such as shape memory and superelasticity. Fe-Mn-Si alloy is a newly developed type of memory alloy with high shape memory and good processing performance. In order to better understand its memory behavior, this paper proposes a new method-Stress-induced martensitic transformation in constrained state. Through experiments, it was found that stress in the constrained state significantly promotes martensitic transformation and thus improves memory effect. This paper will focus on exploring the mechanism of stress-induced martensitic transformation in Fe-Mn-Si alloy and its impact on shape memory performance.Keywords: memory alloy, Fe-Mn-Si, stress in constrained state, martensitic transformation, shape memory
