李龙飞,陈兴品,孙洪福,李晓光

• 1:重庆大学材料科学与工程学院

摘要(Abstract)：

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,Σ≤29)特殊晶界。在同一形变量下,随着温度的升高,Σ3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。

关键词(KeyWords)： 晶界特征分布;退火孪晶;立方织构;EBSD

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51171215)

作者(Author): 李龙飞,陈兴品,孙洪福,李晓光

DOI: 10.13289/j.issn.1009-6264.2015.06.007

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