Recovery features in rolled tungsten single crystals of various purity

被引：0
|
作者：
Pronina, LN [1 ]
Mazilkin, AA [1 ]
Aristova, IM [1 ]
机构：
[1] Russian Acad Sci, Inst Solid State Phys, Moscow, Russia
来源：
JOURNAL OF ADVANCED MATERIALS | 2000年 / 32卷 / 02期
关键词：
Annealing - Crystal impurities - Crystal orientation - Crystal structure - High temperature operations - Molybdenum - Niobium - Phase transitions - Rolling - Stacking faults - Tungsten;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The deformation behavior of tungsten single crystals with various purity was studied. Single crystal sheets were prepared The sheers retain the as-grown orientation at all stages of rolling deformation and only polygonization, which preserves the single cn stal structure, takes place in samples heated to the temperature close to the melting point. The subboundaries formation proceeds in two stages with subsequent transformation of the unstable structure into a configuration having all energy minimum. The decisive factor affecting the polygonization rate is the stacking fault energy. The presence of impurities has also a significant influence. Some common? structural features for molybdenum, tungsten and niobium single crystal during deformation and subsequent annealings were discussed.
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页码：48 / 52
页数：5
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