科研之友
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摘要
The atomic structure of {112} twin boundary in a specialty beta-Ti alloy, gum metal, has been studied by means of conventional transmission electron microscopy, bright-field and high-angle annular dark field scanning transmission electron microscopy imaging. The observations provide direct evidence that the {112} twin boundary has a complex, multiple-layer structure, which is composed of various structural units. These structural units are formed as a result of different degrees of inner atomic-column shifting. The complex structure of the {112} twin boundary is different to the atomic structure of the previously reported omega phase.
- 出版日期2016
