一钢铁内部在变化当我们进行铸造、锻造、热处理或焊按时,都离不开把钢铁从室温加热到一定的温度,以及再冷却到室温这样一个过程。在这整个加热与冷却过程中,钢铁内部组织一直变化着。要弄通它的变化,首先就要看铁碳平衡图。顾名思义,铁碳平衡图是有关铁和碳组成的合金在平衡状态下的图。它 A change in the interior of the steel When we cast, forge, heat treatment or welding press, are inseparable from the steel from room temperature to a certain temperature, and then cooled to room temperature such a process. The internal organization of the steel has been changing throughout this heating and cooling process. To make it through the changes, we must first look at iron-carbon balance map. As its name implies, the iron-carbon balance diagram is a graph of the equilibrium state of an alloy of iron and carbon. it