It leads to form the second phase particle, which hinder dislocation motion and improve alloy intensity.

有序化形成第二相粒子后阻碍位错运动，提高合金强度。

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The mechanism of ductile-brittle transition was considered as the result of the transition of stress as determined by the second phase particle to that as determined by the ferrite grain.

当裂尖出现纤维裂纹后，韧脆转变机理是：由二相粒子决定的解理断裂应力转变成由晶粒尺寸决定的解理断裂应力。同缺口试样具有相同的临界事件。

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The cracking in cold rolling was mainly caused by the large Fe particle and heterogeneous distribution of second phase.

在轧制中合金出现开裂的原因与存在较大的铁颗粒及第二相的分布不均匀有关。

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