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Title: Ductile Titanium Alloy with Low Poisson's Ratio

Abstract

We report a ductile {beta}-type titanium alloy with body-centered cubic (bcc) crystal structure having a low Poisson's ratio of 0.14. The almost identical ultralow bulk and shear moduli of {approx}24 GPa combined with an ultrahigh strength of {approx}0.9 GPa contribute to easy crystal distortion due to much-weakened chemical bonding of atoms in the crystal, leading to significant elastic softening in tension and elastic hardening in compression. The peculiar elastic and plastic deformation behaviors of the alloy are interpreted as a result of approaching the elastic limit of the bcc crystal under applied stress.

Authors:
; ; ; ;  [1]
  1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (China)
Publication Date:
OSTI Identifier:
20951404
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 21; Other Information: DOI: 10.1103/PhysRevLett.98.216405; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BCC LATTICES; CHEMICAL BONDS; COMPRESSION; CRYSTALS; HARDENING; PLASTICITY; PRESSURE RANGE GIGA PA; SHEAR; STRESSES; TITANIUM ALLOYS

Citation Formats

Hao, Y. L., Li, S. J., Sun, B. B., Sui, M. L., and Yang, R. Ductile Titanium Alloy with Low Poisson's Ratio. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.216405.
Hao, Y. L., Li, S. J., Sun, B. B., Sui, M. L., & Yang, R. Ductile Titanium Alloy with Low Poisson's Ratio. United States. doi:10.1103/PHYSREVLETT.98.216405.
Hao, Y. L., Li, S. J., Sun, B. B., Sui, M. L., and Yang, R. Fri . "Ductile Titanium Alloy with Low Poisson's Ratio". United States. doi:10.1103/PHYSREVLETT.98.216405.
@article{osti_20951404,
title = {Ductile Titanium Alloy with Low Poisson's Ratio},
author = {Hao, Y. L. and Li, S. J. and Sun, B. B. and Sui, M. L. and Yang, R.},
abstractNote = {We report a ductile {beta}-type titanium alloy with body-centered cubic (bcc) crystal structure having a low Poisson's ratio of 0.14. The almost identical ultralow bulk and shear moduli of {approx}24 GPa combined with an ultrahigh strength of {approx}0.9 GPa contribute to easy crystal distortion due to much-weakened chemical bonding of atoms in the crystal, leading to significant elastic softening in tension and elastic hardening in compression. The peculiar elastic and plastic deformation behaviors of the alloy are interpreted as a result of approaching the elastic limit of the bcc crystal under applied stress.},
doi = {10.1103/PHYSREVLETT.98.216405},
journal = {Physical Review Letters},
number = 21,
volume = 98,
place = {United States},
year = {Fri May 25 00:00:00 EDT 2007},
month = {Fri May 25 00:00:00 EDT 2007}
}