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材料研究学报  2003, Vol. 17 Issue (6): 577-582    
  论文 本期目录 | 过刊浏览 |
Ti-47Al-2W-0.5Si-0.5B合金中β相生长方向的O点阵分析
张鸿;陈春林; 贺连龙; 周兰章;郭建亭; 叶恒强
中国科学院金属研究所沈阳材料科学国家(联合)实验室
引用本文:

张鸿; 陈春林; 贺连龙; 周兰章; 郭建亭; 叶恒强 . Ti-47Al-2W-0.5Si-0.5B合金中β相生长方向的O点阵分析[J]. 材料研究学报, 2003, 17(6): 577-582.

全文: PDF(676 KB)  
摘要: 将Ti-47Al-2W-0.5Si-0.5B (ABB-23)合金经热等静压和热处理,在透射电镜下观察其组织,在a2-Ti3Al相中发现了呈针片状的b相析出物,有多种不同的有规律的长轴方向。b相与a2-Ti3Al之间的取向关系为 (0001)a2//{110}β和< >a2//<111>β。 当沿a2相的[0001]a2方向观察时,b相的长轴生长方向均偏离a2相密排方向< >方向约14o。用O点阵模型对b相在a2相中析出时的这种特定的长轴生长方向进行了合理地解释。
关键词 材料科学基础学科TiAl基合金O点阵模型     
Key words
收稿日期: 1900-01-01     
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