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Research Progress on Crystal Structures and Structural Transformation of Titanium
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1.Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China;2.Paris-Saclay University, Orsay 91405, France

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Fund Project:

National Nature Science Foundation of China (51201138); International Science & Technology Cooperation Program of Shaanxi Province (2022KW-41, 2020KW-040)

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    Abstract:

    High strength, low density, and excellent corrosion resistance are the main properties making titanium attractive in a variety of applications. The crystal structures and structural transformations of titanium allotropes, which are of tremendous scientific and technological interest, have attracted a great deal of attention for many years. In addition to hexagonal close packed α-Ti, high temperature phase β-Ti with body-centred cubic structure and ω-Ti with the hexagonal structure, researchers have tried to find other metastable structures which can be maintained under extreme conditions through various methods. During the past decades, the ultrahigh pressure structures γ-Ti and δ-Ti are observed, and the room temperature ω-Ti and fcc-Ti can be obtained by high pressure torsion, laser shock, ultra-thin films, etc. The research progress of crystal structures and structural transformations of titanium were introduced. The structural stability and mechanism of structural transformations on titanium were elaborated.

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[Li Lei, Guo Dizi, Ying Yang, Hong Quan, JI Vincent. Research Progress on Crystal Structures and Structural Transformation of Titanium[J]. Rare Metal Materials and Engineering,2022,51(12):4398~4409.]
DOI:10.12442/j. issn.1002-185X.20220616

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History
  • Received:July 27,2022
  • Revised:November 23,2022
  • Adopted:September 08,2022
  • Online: January 11,2023
  • Published: December 30,2022