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板条马氏体(α~′)是大多数热处理用钢中出现的重要变态组织,图1是它的组织构成模型图。一个奥氏体晶粒被分成几个象A那样的束区域,各个束又进一步被分成几个象B那样的图1板条α~′组织构成模型图块区域,一个块是由C那样平行并且方位相同的板条集团所组成。板条α~′的组织构成与钢的强韧性有密切的关系。本文详细探索影响板条α~′组织构成的诸因素,力求得到以组织学观点为基础的见解。
The lath martensite (α ~ ’) is an important metamorphic structure that appears in most heat-treated steels. Figure 1 shows the model of its structure. An austenite grain is divided into several beam regions like A, and each beam is further divided into several B-like slat α ~ ’’ ’’ ’’ ’’ ’’ ’’ ’’ ’’ ’’ ’’ ’’ ’’ ’’ ’ And the same orientation of the slab group. The structure of slats α ~ ’is closely related to the toughness of steel. This article explores in detail the factors that affect the composition of the plank α ~ ’structure and seeks to obtain insights based on histological perspectives.