LIU Yansheng ZHAO Xiang LIANG Zhide Northeast University of Technology
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Shenyang
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China
金属学报(英文版)
The texture change along the normal direction to rolling plane of cross shear rolled commer- cial copper has been studied by means of two step method for ODF caleulation and computer simulation.The texture of cross shear rolling of copper is similar in primary components to that of conventional cold rolling,but the scattering degree and direction of the texture are dif- ferent,due to the residual shear strain change in different position along the normal to rolling plane.It seems that no more effect of the shear strain upon the recrystallization texture.
关键词:
cross shear rolling
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null
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null
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X.H. Gao
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K.M. Qi
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R.L. Li
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C.L. Qiu
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B. Ma and G.R. Bai Department of Metal Forming
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School of Materials and Metallurgy
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Northeastern University
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Shenyang 110006
,
China
金属学报(英文版)
Commercial grain oriented silicon steels 0 30mm thick were cold rolled to thinner than mm by the cross shear rolling (CSR) and the conventional rolling respectively, then annealed in a normal hydrogen atmosphere furnace. The influence of the process parameters on rolled textures and the magnetic property of thin silicon steel sheets were investigated. The results indicated that the cross shear rolling was beneficial to improve the rolled textures and the magnetic property of the thin silicon steels. The amount of nucleus of Goss grain increased with increasing the mismatch speed ratio; in addition, magnetic properties were improved further with increasing reduction rate, meanwhile, rolled textures tend to well distributed through the thickness of the sheet.
关键词:
cross shear rolling
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null
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null
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刘燕声
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赵骧
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梁志德
金属学报
本文采用不完整极图二步法测算ODF与计算机模拟相配合,研究了工业纯铜的异步冷轧织构沿轧板厚度方向的变化规律,同时也对冷轧试样的再结晶织构沿该方向的变化进行了探讨。结果表明,Cu的异步冷轧织构与普通冷轧织构在主要织构组份上大体相同,但在轧板厚度方向不同位置处,因残余切应变不同而导致织构的漫散程度和方向有所差异。异步轧制过程中的切应变对再结晶织构形态没有影响。
关键词:
异步轧制
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cold rolled texture
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recrystallization texture
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texture simulation
刘刚
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王福
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齐克敏
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刘桂兰
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梁志德
金属学报
采用异步轧制对经过一次正常冷轧和中间退火的、厚度为0.746mm的工业取向硅钢实施一次速比为1.17的异步冷轧，轧至0.34mm，在普通的工艺条件下，进行退火，用ODF和反极图定量研究各层织构的分布与转化。并测量了磁性。结果表明：在本工艺条件下，织构组分与传统冷轧相同，异步轧制板材的表层附近世出现了类似于正常轧制下位于亚表面层上的，理想的冷轧织构组分，但是已明显地偏向了快速辊侧表面，冷轧织构组态沿着轧板的厚度方向呈现了非对称分布；脱碳退火后，η织构加强，织构组分沿板厚方向上重新出现了以轧板中心面为对称的分布；二次再结晶退火后，产生了强度集中的Goss织构。其磁性能不低于同步轧制。
关键词:
异步轧制
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silicon steel
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texture
刘刚
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刘桂兰
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齐克敏
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王福
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左良
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梁志德
材料研究学报
采用速比为1.2的异步轧制及常规轧制,将0.30mm厚的工业取向硅钢冷轧至0.10mm;在普通氢气炉中退火对退火薄带的再结晶组织、织构和磁性的研究表明:经异步轧制并在1150℃退火的5h中发生了三次再结晶,晶粒度1～3mm、晶粒取向为｛110｝[001];与冷轧前板材相比,薄带的磁性明显改善:铁攒下降了51%,B8=1.978T,P13/50=0.30mW·g-1P17/50=0.72mW·g-1
关键词:
异步轧制
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grain oriented silicon steel
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tertiary recrystallization
黄涛
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曲家惠
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胡卓超
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王福
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左良
金属学报
采用不同速比的异步轧制技术对99.99%的高纯铝板进行不同形变量的冷轧，并对冷轧样品进行不同温度和时间的再结晶退火. 利用X射线衍射技术和TEM观测探讨了异步轧制条件下高纯铝箔中变形织构和再结晶织构的演变. 结果表明: 高速比的异步轧制(i=1.28)在样品中产生相对较强的旋转立方织构{001}＜110＞. 异步轧制后退火的高纯铝箔样品中，立方{001}＜100＞织构组分的再结晶晶核的形成和长大存在一个临界转变温度，此温度与异步轧制的速比成反比. 异步轧制有利于降低高纯铝箔的再结晶温度，这与异步轧制提高高纯铝箔的形变储能有关. 异步轧制有利于在低温时形成强的立方{001}＜100＞织构组分，但此时漫散较大; 随着退火温度的升高, 漫散范围明显缩至8°－10°.
关键词:
异步轧制
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high purity aluminum foil
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cube texture
