【摘要】 采用有限元方法（ＦｉｎｉｔｅＥｌｅｍｅｎｔＭｅｔｈｏｄ，ＦＥＭ）对Ａｌ２Ｏ３－Ｔｉ系梯度功能材料（ＦＧＭ）在制备过程中产生的残余热应力进行了线弹性分析。详细讨论了梯度层数目、梯度层厚度和成分梯度指数对应力大小和分布的影响，确定了各项最佳参数。非梯度功能材料（ＮＦＧＭ）与优化后的梯度功能材料的残余热应力对比结果显示：梯度功能材料缓和热应力的效果十分显著更多还原

【Abstract】 The elastic finite element method was introduced to study thermal residual stresses developed during fabrication in Al2O3Ti system functionally gradient material (FGM) The effect of graded interlayer number, graded thickness and compositional gradient exponent on thermal residual stresses value and distribution was analyzed, then several parameters were optimized Thermal residual stresses in nongradient material (NFGM) and optimized FGM were comprised, the result showed that the effect of thermal stresses alleviated by FGM was remarkable更多还原