Development of the cube texture at low annealing temperatures in highly rolled pure nickel
Development of the cube texture at low annealing temperatures in highly rolled pure nickel
复制标题
高轧制纯镍在低退火温度下形成立方织构
DOI：
10.1016/j.actamat.2007.02.005
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发表时间：
2007-06-01
期刊：
影响因子：
9.4
通讯作者：
Liu, Q.
中科院分区：
文献类型：
--
作者：
Li, X. L.;Liu, W.;Liu, Q.
研究了轧制至极高应变的纯镍再结晶过程中织构和微观结构的发展。选择低温退火是为了分离再结晶和晶粒生长的影响。特别关注立方体取向织构成分的成核和生长，以及孪晶在产生其他取向织构成分时的影响。使用扩展的 Cahn-Hagel 方法根据 EBSP 数据分析了立方体和非立方体取向的再结晶晶粒的生长速率。在估计的实验误差内，再结晶过程中两种取向类别的生长速率保持恒定，其中立方体取向晶粒的生长速率较高，约为 3 倍。一些次要的再结晶织构成分由孪晶产生，其中孪晶的作用在再结晶的早期阶段最为重要。 (C) 2007 Acta Materialia Inc. 由 Elsevier Ltd 出版。保留所有权利。
The development of texture and microstructure during recrystallization of pure nickel rolled to very high strains has been investigated. Low-temperature annealing was chosen in order to separate the effects of recrystallization and grain growth. Particular attention was focused on the nucleation and growth of the cube orientation texture component, and on the effect of twinning in producing texture components of other orientations. The growth rates for recrystallizing grains of cube and non-cube orientations were analyzed from the EBSP data using an extended Cahn-Hagel method. Within the estimated experimental errors the growth rates of both orientation classes remain constant during recrystallization, with the cube orientation grains having a higher growth rate by a factor of similar to 3. Some minor recrystallization texture components result from twinning, with the role of twinning being most important in the early stages of recrystallization. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.