含硼层对后续热处理所得到的机械性能产生影响的机制,几乎还没有人研究过。本文的目的是研究这一机制,并用数学程序试验法来确定40XHMA钢渗硼的最佳工艺参数。为此,利用了二阶正交组合设计。选取渗硼温度(X_1)、渗硼时间(X_2)和 The mechanism by which a boron-containing layer affects the mechanical properties resulting from subsequent heat treatment has not been studied by anyone. The purpose of this paper is to study this mechanism and to determine the optimum process parameters for boronizing 40XHMA steel by mathematical programming. To this end, the use of second-order orthogonal combination design. Select boronizing temperature (X_1), boronizing time (X_2) and