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本文研究了含矽量为4.15%,2.9%和3.35%的矽钢片的加工结构和再结晶结构。用X射线测定极图的结果证明:在所有合金中,当最后冷轧轧下量大于60%时,其加工结构是(001)[110],(112)[(?)]及(111)[(?)]。退火后的初次再结晶结构是(001)[110]绕[001]轴旋转0°—30°,(111)[(?)]及(110)[001]。本文还研究了再结晶结构的形成过程,借以了解它的形成机构。结果表明:(1)再结晶结构(001)[110]绕[001]轴旋转0°—30°是通过“同位再结晶”(recrystallizatton in-situ)的过程,然后围绕垂直于压延平面的轴旋转而成。(2)再结晶的最初阶段的(110)[001]结构与加工结构(111)[(?)]在数量上有对应的关系,因此,我们认为用定向生核理论来解释(110)[001]的形成较为适当。在几何关系上,前人曾指出,再结晶结构(110)[001]可认为是由加工结构(111)[112]绕〈110〉轴旋转35°而来,这个观点是与本文结果符合的。(3)在退火过程中,加工结构的消失具有一定顺序:(111)[(?)]最先消失,(001)[110]最后消失。某一加工结构的再结晶本领并不决定于它的相对数量的多少,而是决定于该结构的类型。在含矽量为2.9%的样品中,经一系列的加工及热处理后,获得了发展良好的第二次再结晶结构(110)[001],其偏离度为15°(110)[001]结构即一

Rolling textures and recrystallization textures have been studied in iron siliconalloys containing silicon 4.15%,2.9% and 3.35% respectively.X-ray pole figures haveshown that rolling textures can be described as(001)[110],(112)[110]and(111)[112]in all alloys after cold reductions greater than 60%.Upon annealing,recrystalli-zation textures are as follows:(001)[110]with a rotation of 0°-30° about[001]axis,(111)[112]and(110)[001].The mechanism of formation of recrystallization textures has been investigated bysuccessive stages of annealing.The following conclusions have been obtained:1)The(100)[110]texture having a rotation of 0°-30° about[001]axis wasdeveloped through the process of“recrystallization-in-situ”.2)Since the intensity of(110)[001]annealing texture seemed to vary in cor-respondence with the intensity of(111)[112]rolling texture,the mechanism of(110)[001]formation could be considered preferably from the point of view of“orientednucleation”hypothesis.3)There existed a definite sequence of disappearance of the various rolling texturecomponents,the(111)[112]texture disappeared first and the(001)[110]last.Thisobservation is in agreement with what has been found in single crystals of iron silicon.However,it is shown that this capability of recrystallization does not depend on therelative amount of the given rolling texture present,rather it depends on the type ofthe given texture itself.