In situ TEM observation of HCP to FCC transitions in hexagonal close-packed titanium

Yuan Ma; Yongqing Chen; Xinyang Yu; Binglu Zhang; Luning Wang; Yang He

doi:10.1080/21663831.2024.2404158

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In situ TEM observation of HCP to FCC transitions in hexagonal close-packed titanium

Original Report | 更新时间：2026-08-19

- In situ TEM observation of HCP to FCC transitions in hexagonal close-packed titanium
- Materials Research Letters Vol. 12, Issue 12, Pages: 956-962(2024)
- 作者机构：
  
  Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and Engineering University of Science and Technology Beijing
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2024.2404158
  CLC：
- Online First：24 September 2024，
  
  Published：2024
- 稿件说明：
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Yuan Ma, Yongqing Chen, Xinyang Yu, et al. In situ TEM observation of HCP to FCC transitions in hexagonal close-packed titanium[J]. Materials Research Letters, 2024, 12(12): 956-962.
DOI：

Yuan Ma, Yongqing Chen, Xinyang Yu, et al. In situ TEM observation of HCP to FCC transitions in hexagonal close-packed titanium[J]. Materials Research Letters, 2024, 12(12): 956-962. DOI： 10.1080/21663831.2024.2404158.

摘要

Abstract

BSTRACTIt remains controversial as to whether a face-centered cubic (FCC) phase exists in pure titanium (Ti) upon deformation

since the FCC structures in deformed Ti may well be TiH

resulting from the sample preparation process. Here

by using in situ transmission electron microscopy (TEM)

we uncover direct evidences on the nucleation and growth of FCC-Ti right in front of the crack tip in the α-Ti matrix. Atomic resolution images further reveal that the transformation can be mediated by either partial dislocations on basal planes or shear and atomic shuffle on the FCC1 1 0|HCP1 0 -1 0 interfaces.

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Related Institution

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a Multidisciplinary Research Center – Cardinal Stefan Wyszynski University in Warsaw Warsaw Poland

b Institute of High Pressure Physics Polish Academy of Sciences

c PSL Research University Chimie ParisTech CNRS Institut de Recherche de Chimie Paris

a State Key Laboratory of Solidification Processing Northwestern Polytechnical University

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