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本文测定了铁素体-马氏体双相钢在拉伸和拉伸加压缩时的初始流变应力以及随后的矫顽力。结果发现,拉伸和拉伸加压缩后的矫顽力的变化同相应的初始流变应力的变化趋势一样,而后者称为Bauschinger效应。但矫顽力的相对变化大于后者。
In this paper, the initial flow stress and subsequent coercivity of ferritic-martensitic dual-phase steel during tensile and tensile plus compression are measured. The results show that the change of coercive force after stretching and stretching plus compression is the same as that of the corresponding initial flow stress, while the latter is called Bauschinger effect. However, the relative change of coercivity is greater than the latter.