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：记忆合金是一种特殊的功能材料，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:Memoryalloyisaspecialfunctionalmaterialwithuniquephysicalpropertiessuchasshapememoryandsuperelasticity.Fe-Mn-Sialloyisanewlydevelopedtypeofmemoryalloywithhighshapememoryandgoodprocessingperformance.Inordertobetterunderstanditsmemorybehavior,thispaperproposesanewmethod-Stress-inducedmartensitictransformationinconstrainedstate.Throughexperiments,itwasfoundthatstressintheconstrainedstatesignificantlypromotesmartensitictransformationandthusimprovesmemoryeffect.Thispaperwillfocusonexploringthemechanismofstress-inducedmartensitictransformationinFe-Mn-Sialloyanditsimpactonshapememoryperformance.Keywords:memoryalloy,Fe-Mn-Si,stressinconstrainedstate,martensitictransformation,shapememory