Atomic-scale study of {1 1 2} twin boundary structure in a β-Ti alloy

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The atomic structure of {1 1 2} twin boundary in a specialty β-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 {1 1 2} 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 {1 1 2} twin boundary is different to the atomic structure of the previously reported ω phase.

Original languageEnglish
Pages (from-to)280-285
Number of pages6
JournalPhilosophical Magazine Letters
Volume96
Issue number7
DOIs
Publication statusPublished - 2 Jul 2016

Keywords

  • Titanium alloys
  • Twinning
  • HAADF-STEM

Cite this

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abstract = "The atomic structure of {1 1 2} twin boundary in a specialty β-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 {1 1 2} 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 {1 1 2} twin boundary is different to the atomic structure of the previously reported ω phase.",
keywords = "Titanium alloys, Twinning, HAADF-STEM",
author = "Yuman Zhu and Suming Zhu and Jian-Feng Nie",
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language = "English",
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Atomic-scale study of {1 1 2} twin boundary structure in a β-Ti alloy. / Zhu, Yuman; Zhu, Suming; Nie, Jian-Feng.

In: Philosophical Magazine Letters, Vol. 96, No. 7, 02.07.2016, p. 280-285.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

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AU - Zhu, Yuman

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AU - Nie, Jian-Feng

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AB - The atomic structure of {1 1 2} twin boundary in a specialty β-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 {1 1 2} 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 {1 1 2} twin boundary is different to the atomic structure of the previously reported ω phase.

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