Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Rolling-induced Face Centered Cubic Titanium in Hexagonal Close Packed Titanium at Room Temperature

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep24370· OSTI ID:1624829
 [1];  [2];  [3];  [4];  [2];  [5];  [6]
  1. Beihang Univ., Beijing (China). School of Materials Science and Engineering; DOE/OSTI
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Materials Science and Technology Division
  3. Univ. of Nebraska, Lincoln, NE (United States). Mechanical and Materials Engineering
  4. Beihang Univ., Beijing (China). School of Materials Science and Engineering
  5. ZheJiang Univ. (China). State Key lab of Si Materials. Dept. of Materials Science
  6. Univ. of Pittsburgh, PA (United States). Dept. of Mechanical Engineering and Materials Science

Combining transmission electron microscopes and density functional theory calculations, we report the nucleation and growth mechanisms of room temperature rolling induced face-centered cubic titanium (fcc-Ti) in polycrystalline hexagonal close packed titanium (hcp-Ti). Fcc-Ti and hcp-Ti take the orientation relation: $$\langle$$0001$$\rangle$$hcp||$$\langle$$001$$\rangle$$fcc and {$$10\bar{1}0$$} hcp||{110}fcc, different from the conventional one. The nucleation of fcc-Ti is accomplished via pure-shuffle mechanism with a minimum stable thickness of three atomic layers, and the growth via shear-shuffle mechanisms through gliding two-layer disconnections or pureshuffle mechanisms through gliding four-layer disconnections. Such phase transformation offers an additional plastic deformation mode comparable to twinning.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1624829
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 6; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (38)

Bulk submicrocrystalline ω-Ti produced by high-pressure torsion straining journal September 2008
The f.c.c. to h.c.p. martensitic phase transformation in CoNi studied by TEM and AFM methods journal February 1997
Dynamic Process of Phase Transition from Wurtzite to Zinc Blende Structure in InAs Nanowires journal November 2013
High Resolution Transmission Electron Microscope Observation of Zero-Strain Deformation Twinning Mechanisms in Ag journal April 2011
Generalized Gradient Approximation Made Simple journal October 1996
The cobalt transformation journal February 1960
Deformation twinning journal January 1995
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Defects at Surfaces and Interfaces book January 1994
Texture analysis in hexagonal materials journal July 2003
Steps, dislocations and disconnections as interface defects relating to structure and phase transformations journal December 1996
The f.c.c. to h.c.p. martensitic phase transformation in CoNi studied by TEM and AFM methods journal February 1997
In situ SEM-EBSD observations of the hcp to bcc phase transformation in commercially pure titanium journal February 2004
Strain-induced grain refinement of cobalt during surface mechanical attrition treatment journal February 2005
Detwinning mechanisms for growth twins in face-centered cubic metals journal April 2010
Twinning dislocations on {1¯011} and {1¯013} planes in hexagonal close-packed crystals journal June 2011
Twinning dislocation multiplication at a coherent twin boundary journal September 2011
Slip transmission across fcc/bcc interfaces with varying interface shear strengths journal February 2012
First-principles study of energy and atomic solubility of twinning-associated boundaries in hexagonal metals journal February 2015
A crystal plasticity model for hexagonal close packed (HCP) crystals including twinning and de-twinning mechanisms journal October 2013
Stress-induced FCC ↔ HCP martensitic transformation in CoNi journal April 2004
Microstructural evolution and formation mechanism of FCC titanium during heat treatment processing journal March 2013
Allotropic phase transformation of pure zirconium by high-pressure torsion journal October 2009
The effects of texture and extension twinning on the low-cycle fatigue behavior of a rolled magnesium alloy, AZ31B journal October 2010
Analysis of twinning behavior of pure Ti compressed at different strain rates by Schmid factor journal July 2013
Interface defects, reference spaces and the Frank–Bilby equation journal June 2013
Phase stability and its effect on the deformation behavior of Ti–Nb–Ta–In/Cr β alloys journal June 2006
Stress-induced hexagonal close-packed to face-centered cubic phase transformation in commercial-purity titanium under cryogenic plane-strain compression journal September 2013
Transformation strains in martensitic phase transitions of Co alloys journal January 1999
Twinning and De-twinning via Glide and Climb of Twinning Dislocations along Serrated Coherent Twin Boundaries in Hexagonal-close-packed Metals journal February 2013
Pure-Shuffle Nucleation of Deformation Twins in Hexagonal-Close-Packed Metals journal September 2013
Nucleation of elementary $\{\bar {1}\,0\,1\,1\}$ and $\{\bar {1}\,0\,1\,3\}$ twinning dislocations at a twin boundary in hexagonal close-packed crystals journal February 2012
Ab initio molecular dynamics for open-shell transition metals journal November 1993
Projector augmented-wave method journal December 1994
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
High Resolution Transmission Electron Microscope Observation of Zero-Strain Deformation Twinning Mechanisms in Ag journal April 2011
Generalized Gradient Approximation Made Simple journal October 1996

Cited By (5)

Proposed mechanism of HCP → FCC phase transition in titianium through first principles calculation and experiments journal January 2018
Structure Evolution, Elastic and Electronic Properties of Pt‐Doped Ti Alloy under Pressure journal September 2019
Dynamic Probing of Structural Evolution of Single Crystal Fe during Rolling Process Using Atomistic Simulation journal March 2019
Shear-induced hexagonal close-packed to face-centered cubic phase transition in pure titanium processed by equal channel angular drawing journal February 2019
Plastic deformation-induced HCP-to-FCC phase transformation in submicron-scale pure titanium pillars journal September 2019

Similar Records

Direct observation of dual-step twinning nucleation in hexagonal close-packed crystals
Journal Article · Mon May 18 00:00:00 EDT 2020 · Nature Communications · OSTI ID:1638496

The microstructure and formation mechanism of face-centered cubic Ti in commercial pure Ti foils during tensile deformation at room temperature
Journal Article · Wed Feb 14 23:00:00 EST 2018 · Materials Characterization · OSTI ID:22805741

Interface structures and twinning mechanisms of {1¯012} twins in hexagonal metals
Journal Article · Wed Jun 07 00:00:00 EDT 2017 · Materials Research Letters · OSTI ID:1369211