杨芳芳,杨斌鑫

• 1:太原科技大学应用科学学院

摘要(Abstract)：

建立了Fe-Cu-Ni-Mn合金的非等温相场模型，用傅里叶谱方法进行求解，从数值上模拟了Fe-Cu-Ni-Mn合金的非等温析出过程，研究了温度场对合金析出的影响。进行了两次不同的实验模拟，模拟一是恒温状态下合金析出行为，模拟二是非恒温温度场下合金析出行为随温度场的变化情况。两次模拟表明：Cu的沉淀物先从过饱和固溶体中析出，Mn、Ni随后析出。而在相场中加入温度场，可以得出温度随着序参量的变化而变化，进而影响合金的析出，而温度场的加入使得Cu和Ni、Mn在温度较高的地方析出更快更明显。也验证了傅里叶谱方法求解相场方程的可行性及优越性。

关键词(KeyWords)： 合金析出;相场;傅里叶谱方法;温度场

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(11701406)

作者(Author): 杨芳芳,杨斌鑫

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