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最近一些著作介绍了材料工艺过程的数学模型,比如铁的渗碳和氧化的模型。这些模型的共同特点是把界面反应和扩散过程结合起来。上述模型都从下面的前题出发,在模拟过程的整个时期内相数保持不变。在氧化模型的初始条件中,假定已经存在最小厚度的一层郁氏体层(FeO)。在这个模型中扩散过程只在一个相内进行,在γ’铁中渗碳和在
Recent works have introduced mathematical models of material processes, such as the carburization and oxidation of iron. The common feature of these models is the combination of interface reactions and diffusion processes. The above models all start from the following preamble and the number of phases remains constant throughout the simulation. In the initial conditions of the oxidation model, it is assumed that a layer of the meso-layer (FeO) of the minimum thickness already exists. In this model the diffusion process takes place in only one phase, carburizing and in γ ’iron