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Title: Deformation of a Ti-Nb alloy containing α"-martensite and omega phases

Abstract

Microscopic deformation of a Ti-17at. %Nb alloy with high fractions of α"-martensite and ω phases was studied by in-situ synchrotron X-ray diffraction. Textures, phase fractions, individual lattice strains, and peak intensities during deformation were studied. It is found that, to accommodate the external tensile strain, some of the α" and ω grains were first transformed to the β-phase, which then continuously transformed to the α"-phase with chosen variants that effectively accommodate the deformation strain. Here, a strong (010)α" fiber texture was formed at the expense of the (001)α" and (111)α" fiber textures. Above 400 MPa applied stress, (110)α" deformation twinning was triggered with a simultaneous stress relaxation in the (110)α" family and a slight increase in its texture strength in the loading direction.

Authors:
 [1];  [1];  [2]
  1. Fort Wayne Metals Research Products Corp., Fort Wayne, IN (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1239623
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 13; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Cai, S., Schaffer, J. E., and Ren, Yang. Deformation of a Ti-Nb alloy containing α"-martensite and omega phases. United States: N. p., 2015. Web. doi:10.1063/1.4916960.
Cai, S., Schaffer, J. E., & Ren, Yang. Deformation of a Ti-Nb alloy containing α"-martensite and omega phases. United States. https://doi.org/10.1063/1.4916960
Cai, S., Schaffer, J. E., and Ren, Yang. 2015. "Deformation of a Ti-Nb alloy containing α"-martensite and omega phases". United States. https://doi.org/10.1063/1.4916960. https://www.osti.gov/servlets/purl/1239623.
@article{osti_1239623,
title = {Deformation of a Ti-Nb alloy containing α"-martensite and omega phases},
author = {Cai, S. and Schaffer, J. E. and Ren, Yang},
abstractNote = {Microscopic deformation of a Ti-17at. %Nb alloy with high fractions of α"-martensite and ω phases was studied by in-situ synchrotron X-ray diffraction. Textures, phase fractions, individual lattice strains, and peak intensities during deformation were studied. It is found that, to accommodate the external tensile strain, some of the α" and ω grains were first transformed to the β-phase, which then continuously transformed to the α"-phase with chosen variants that effectively accommodate the deformation strain. Here, a strong (010)α" fiber texture was formed at the expense of the (001)α" and (111)α" fiber textures. Above 400 MPa applied stress, (110)α" deformation twinning was triggered with a simultaneous stress relaxation in the (110)α" family and a slight increase in its texture strength in the loading direction.},
doi = {10.1063/1.4916960},
url = {https://www.osti.gov/biblio/1239623}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 13,
volume = 106,
place = {United States},
year = {Fri Apr 03 00:00:00 EDT 2015},
month = {Fri Apr 03 00:00:00 EDT 2015}
}

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Cited by: 35 works
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Works referenced in this record:

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Works referencing / citing this record:

Twinning behavior of orthorhombic-α” martensite in a Ti-7.5Mo alloy
journal, April 2019