In situ synchrotron X-ray diffraction investigations of the physical mechanism of ultra-low strain hardening in Ti-30Zr-10Nb alloy
Abstract
A warm-rolled, metastable beta-type Ti-30Zr-10Nb alloy exhibited a peculiar two-stage yielding behavior under uniaxial tensile loading, showing a first plastic stage with obvious strain hardening at 0.4%-10.4% strain and a second plastic stage with ultra-low strain hardening at 10.4%-23.5% strain. In situ high-energy X-ray diffraction (HE-XRD) was used to reveal the stress-induced martensitic transformation scenarios and physical mechanism of the different strain hardening rates. It was found that the deformation-induced phase transformation dominated the onset of the first plastic stage corresponding to the selection of favorable martensitic variants, and their elastic interaction contributed to the obvious strain hardening. HE-XRD experiments further verified that the ultra-low strain hardening rate in the second plastic stage was related to an interesting superelasticity of the martensite, which was characterized by the reversible, stress-induced reorientation of the martensite variants. This reorientation of the martensite variants was primarily due to the rigid lattice rotation of similar to 23 degrees about the [110](α '') axis toward the tensile direction. Here, our investigations provide in-depth understanding of the mechanism of the excellent plasticity with ultra-low strain hardening in beta-type titanium alloys.
- Authors:
-
[2]
- Univ. of Science and Technology Beijing, Beijing (China). State Key Lab. for Advanced Metals and Materials
- Beihang Univ, Beijing (China). School of Materials Science and Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NNSFC); National Key Research and Development Program of China
- OSTI Identifier:
- 1480849
- Alternate Identifier(s):
- OSTI ID: 1496406
- Grant/Contract Number:
- AC02-06CH11357; 51471032; 51527801; 06111020
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Acta Materialia
- Additional Journal Information:
- Journal Volume: 154; Journal Issue: C; Journal ID: ISSN 1359-6454
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; high-energy X-ray diffraction; martensitic transformation; strain hardening; tensile behavior; titanium alloys
Citation Formats
Zhu, Z. W., Xiong, C. Y., Wang, J., Li, R. G., Ren, Y., Wang, Y. D., and Li, Y. In situ synchrotron X-ray diffraction investigations of the physical mechanism of ultra-low strain hardening in Ti-30Zr-10Nb alloy. United States: N. p., 2018.
Web. doi:10.1016/j.actamat.2018.05.034.
Zhu, Z. W., Xiong, C. Y., Wang, J., Li, R. G., Ren, Y., Wang, Y. D., & Li, Y. In situ synchrotron X-ray diffraction investigations of the physical mechanism of ultra-low strain hardening in Ti-30Zr-10Nb alloy. United States. https://doi.org/10.1016/j.actamat.2018.05.034
Zhu, Z. W., Xiong, C. Y., Wang, J., Li, R. G., Ren, Y., Wang, Y. D., and Li, Y. Tue .
"In situ synchrotron X-ray diffraction investigations of the physical mechanism of ultra-low strain hardening in Ti-30Zr-10Nb alloy". United States. https://doi.org/10.1016/j.actamat.2018.05.034. https://www.osti.gov/servlets/purl/1480849.
@article{osti_1480849,
title = {In situ synchrotron X-ray diffraction investigations of the physical mechanism of ultra-low strain hardening in Ti-30Zr-10Nb alloy},
author = {Zhu, Z. W. and Xiong, C. Y. and Wang, J. and Li, R. G. and Ren, Y. and Wang, Y. D. and Li, Y.},
abstractNote = {A warm-rolled, metastable beta-type Ti-30Zr-10Nb alloy exhibited a peculiar two-stage yielding behavior under uniaxial tensile loading, showing a first plastic stage with obvious strain hardening at 0.4%-10.4% strain and a second plastic stage with ultra-low strain hardening at 10.4%-23.5% strain. In situ high-energy X-ray diffraction (HE-XRD) was used to reveal the stress-induced martensitic transformation scenarios and physical mechanism of the different strain hardening rates. It was found that the deformation-induced phase transformation dominated the onset of the first plastic stage corresponding to the selection of favorable martensitic variants, and their elastic interaction contributed to the obvious strain hardening. HE-XRD experiments further verified that the ultra-low strain hardening rate in the second plastic stage was related to an interesting superelasticity of the martensite, which was characterized by the reversible, stress-induced reorientation of the martensite variants. This reorientation of the martensite variants was primarily due to the rigid lattice rotation of similar to 23 degrees about the [110](α '') axis toward the tensile direction. Here, our investigations provide in-depth understanding of the mechanism of the excellent plasticity with ultra-low strain hardening in beta-type titanium alloys.},
doi = {10.1016/j.actamat.2018.05.034},
url = {https://www.osti.gov/biblio/1480849},
journal = {Acta Materialia},
issn = {1359-6454},
number = C,
volume = 154,
place = {United States},
year = {2018},
month = {5}
}
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Figures / Tables:
Figure 1: Schematics to show the setup of in situ synchrotron-based HE-XRD tensile experiment. The inset shows that the azimuth angle ($$\phi$$: 0°~ 360°) in the Debye ring correspond to the distributions of polar coordinates in the stereographic projection figure.
Works referencing / citing this record:
Martensitic transformation, shape memory effect and superelasticity of Ti–xZr–(30–x)Nb–4Ta alloys
journal, September 2019
- Qu, Wen-Tao; Gong, Hao; Wang, Jun
- Rare Metals, Vol. 38, Issue 10