应用电子背散射衍射(EBSD)和取向成像显微技术(OIM)研究了形变量对Ni-5 at％W合金退火过程中晶界特征分布(GBCD)的影响.合金经77％、89％和98％冷轧后分别在不同温度下进行退火.试验结果表明:较小的形变量(77％、89％)相比于较高的形变量(98％),前者更容易在随后的再结晶退火过程中激发出更多的低ΣCSL(coincidence site lattice,∑≤29)特殊晶界.在同一形变量下,随着温度的升高,∑3的比例随之下降;在相同的退火温度下,随着形变量的增大,Σ3的比例也随之下降.与此同时,小角度晶界含量不断增加,立方织构逐渐尖锐.
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