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A study of the sharp yield point of a Ti-22Al-25Nb alloy

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A study of the sharp yield point of a Ti-22Al-25Nb alloy. / Zong, Yingying; Shao, Bin; Tian, Yingtao; Shan, Debin.

In: Journal of Alloys and Compounds, Vol. 701, 15.04.2017, p. 727-731.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Zong, Y, Shao, B, Tian, Y & Shan, D 2017, 'A study of the sharp yield point of a Ti-22Al-25Nb alloy', Journal of Alloys and Compounds, vol. 701, pp. 727-731. https://doi.org/10.1016/j.jallcom.2017.01.110

APA

Zong, Y., Shao, B., Tian, Y., & Shan, D. (2017). A study of the sharp yield point of a Ti-22Al-25Nb alloy. Journal of Alloys and Compounds, 701, 727-731. https://doi.org/10.1016/j.jallcom.2017.01.110

Vancouver

Zong Y, Shao B, Tian Y, Shan D. A study of the sharp yield point of a Ti-22Al-25Nb alloy. Journal of Alloys and Compounds. 2017 Apr 15;701:727-731. https://doi.org/10.1016/j.jallcom.2017.01.110

Author

Zong, Yingying ; Shao, Bin ; Tian, Yingtao ; Shan, Debin. / A study of the sharp yield point of a Ti-22Al-25Nb alloy. In: Journal of Alloys and Compounds. 2017 ; Vol. 701. pp. 727-731.

Bibtex

@article{6b75b1c5f2f2426c8a1bcb61f69b1f42,
title = "A study of the sharp yield point of a Ti-22Al-25Nb alloy",
abstract = "Ti-22Al-25Nb alloy containing 0.2 wt. % hydrogen exhibits a sharp yield point on the stress-strain curve when it is tested above 960 °C. The main reason for this phenomenon can be attributed to the unidirectional crystal orientation and low level of lattice distortion above 960 °C, so that the dislocations tend to move in parallel directions with greater mobility and the stress can be rapidly released. Furthermore, strips of brittle α2 phase can cause stress concentration at the grain boundaries before plastic deformation occurs. Fracturing occurs at the strips of α2 phase when micro-deformation occurs, so that the accumulated stresses are rapidly released.",
keywords = "Intermetallics, Mechanical properties, Microstructure, Dislocation",
author = "Yingying Zong and Bin Shao and Yingtao Tian and Debin Shan",
year = "2017",
month = apr,
day = "15",
doi = "10.1016/j.jallcom.2017.01.110",
language = "English",
volume = "701",
pages = "727--731",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - A study of the sharp yield point of a Ti-22Al-25Nb alloy

AU - Zong, Yingying

AU - Shao, Bin

AU - Tian, Yingtao

AU - Shan, Debin

PY - 2017/4/15

Y1 - 2017/4/15

N2 - Ti-22Al-25Nb alloy containing 0.2 wt. % hydrogen exhibits a sharp yield point on the stress-strain curve when it is tested above 960 °C. The main reason for this phenomenon can be attributed to the unidirectional crystal orientation and low level of lattice distortion above 960 °C, so that the dislocations tend to move in parallel directions with greater mobility and the stress can be rapidly released. Furthermore, strips of brittle α2 phase can cause stress concentration at the grain boundaries before plastic deformation occurs. Fracturing occurs at the strips of α2 phase when micro-deformation occurs, so that the accumulated stresses are rapidly released.

AB - Ti-22Al-25Nb alloy containing 0.2 wt. % hydrogen exhibits a sharp yield point on the stress-strain curve when it is tested above 960 °C. The main reason for this phenomenon can be attributed to the unidirectional crystal orientation and low level of lattice distortion above 960 °C, so that the dislocations tend to move in parallel directions with greater mobility and the stress can be rapidly released. Furthermore, strips of brittle α2 phase can cause stress concentration at the grain boundaries before plastic deformation occurs. Fracturing occurs at the strips of α2 phase when micro-deformation occurs, so that the accumulated stresses are rapidly released.

KW - Intermetallics

KW - Mechanical properties

KW - Microstructure

KW - Dislocation

U2 - 10.1016/j.jallcom.2017.01.110

DO - 10.1016/j.jallcom.2017.01.110

M3 - Journal article

VL - 701

SP - 727

EP - 731

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -