在陶瓷涂层中引入恰当的过渡层使之成为梯度涂层既可提高陶瓷涂层与金属界面的结合强度，也能有效地缓解界面附近的残余热应力．建立了梯度涂层材料平面轴对称问题热应力分析的力学模型及相应的计算方法，并模拟计算了４种不同形式的过渡层（均匀（Ａ），线性变化（Ｌ），指数变化（Ｅ），抛物线变化（Ｐ））及不同的过渡层厚度对残余热应力的影响 Introducing the appropriate transition layer into the ceramic coating to make it a gradient coating can not only improve the bonding strength between the ceramic coating and the metal interface, but also effectively reduce the residual thermal stress near the interface. The mechanical model of thermal stress analysis and the corresponding calculation method for the axial symmetry problem of gradient coating materials are established. Four kinds of transitional layers (uniform (A), linear change (L), exponential change (E) , Parabolic changes (P)) and different thickness of the transition layer on residual thermal stress