贝氏体转变由于其形成机理及动力学上的复杂性、形貌上的明显多样性使人们对其了解不多,甚至在正确定义方面产生了分歧。然而对大多数钢而言,高温及低温下形成的贝氏体碳化物其分布存在条间和条内的差别,这使得传统上的上、下贝氏体命名无论在描述显微结构 Bainite transformation Due to its mechanism of formation and kinetic complexity, the apparent diversity of topography has led to little or no understanding of it, and even led to disagreements on the precise definition. However, for most steels, the distribution of bainite carbides formed at high temperature and low temperature has the difference between bars and bars, which makes traditionally the upper and lower bainite nomenclature no matter in describing the microstructure