Cyclic deformation response and strain-induced martensitic transformation of β single phase Ti-35421 alloy

Yangyang Sun; Kai Chen; I. V. Alexandrov; Hang Zhang; Liang Feng; Jie Ding; Yuecheng Dong; Hui Chang; Lian Zhou

doi:10.1016/j.ijfatigue.2022.107497

Cyclic deformation response and strain-induced martensitic transformation of β single phase Ti-35421 alloy

Yangyang Sun, Kai Chen, I. V. Alexandrov, Hang Zhang, Liang Feng, Jie Ding, Yuecheng Dong, Hui Chang, Lian Zhou

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Compared with bimodal microstructure, the low-cycle fatigue (LCF) behavior and cyclic deformation mechanism of a near β Ti-3Al-5Mo-4Cr-2Zr-1Fe (Ti-35421) alloy with single β were systematically investigated. Lower strength, but higher ductility and longer LCF life were found for Single β. The nanoscale α'' martensite was detected in Single β by selected area electron diffraction pattern. Besides, slips and strain induced martensitic transformation played the major deformation mechanisms in Single β. Moreover, the existence of α'' contributed to the limit of microcracks nucleation in Single β, which resulted in a better fatigue life.

Original language	English
Article number	107497
Journal	International Journal of Fatigue
Volume	169
DOIs	https://doi.org/10.1016/j.ijfatigue.2022.107497
State	Published - Apr 2023
Externally published	Yes

Keywords

Cyclic deformation
Microcracks nucleation
Near β titanium alloy
Single β
Strain-induced martensitic transformation

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10.1016/j.ijfatigue.2022.107497

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title = "Cyclic deformation response and strain-induced martensitic transformation of β single phase Ti-35421 alloy",

abstract = "Compared with bimodal microstructure, the low-cycle fatigue (LCF) behavior and cyclic deformation mechanism of a near β Ti-3Al-5Mo-4Cr-2Zr-1Fe (Ti-35421) alloy with single β were systematically investigated. Lower strength, but higher ductility and longer LCF life were found for Single β. The nanoscale α'' martensite was detected in Single β by selected area electron diffraction pattern. Besides, slips and strain induced martensitic transformation played the major deformation mechanisms in Single β. Moreover, the existence of α'' contributed to the limit of microcracks nucleation in Single β, which resulted in a better fatigue life.",

keywords = "Cyclic deformation, Microcracks nucleation, Near β titanium alloy, Single β, Strain-induced martensitic transformation",

author = "Yangyang Sun and Kai Chen and Alexandrov, {I. V.} and Hang Zhang and Liang Feng and Jie Ding and Yuecheng Dong and Hui Chang and Lian Zhou",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2023",

month = apr,

doi = "10.1016/j.ijfatigue.2022.107497",

language = "英语",

volume = "169",

journal = "International Journal of Fatigue",

issn = "0142-1123",

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TY - JOUR

T1 - Cyclic deformation response and strain-induced martensitic transformation of β single phase Ti-35421 alloy

AU - Sun, Yangyang

AU - Chen, Kai

AU - Alexandrov, I. V.

AU - Zhang, Hang

AU - Feng, Liang

AU - Ding, Jie

AU - Dong, Yuecheng

AU - Chang, Hui

AU - Zhou, Lian

PY - 2023/4

Y1 - 2023/4

N2 - Compared with bimodal microstructure, the low-cycle fatigue (LCF) behavior and cyclic deformation mechanism of a near β Ti-3Al-5Mo-4Cr-2Zr-1Fe (Ti-35421) alloy with single β were systematically investigated. Lower strength, but higher ductility and longer LCF life were found for Single β. The nanoscale α'' martensite was detected in Single β by selected area electron diffraction pattern. Besides, slips and strain induced martensitic transformation played the major deformation mechanisms in Single β. Moreover, the existence of α'' contributed to the limit of microcracks nucleation in Single β, which resulted in a better fatigue life.

AB - Compared with bimodal microstructure, the low-cycle fatigue (LCF) behavior and cyclic deformation mechanism of a near β Ti-3Al-5Mo-4Cr-2Zr-1Fe (Ti-35421) alloy with single β were systematically investigated. Lower strength, but higher ductility and longer LCF life were found for Single β. The nanoscale α'' martensite was detected in Single β by selected area electron diffraction pattern. Besides, slips and strain induced martensitic transformation played the major deformation mechanisms in Single β. Moreover, the existence of α'' contributed to the limit of microcracks nucleation in Single β, which resulted in a better fatigue life.

KW - Cyclic deformation

KW - Microcracks nucleation

KW - Near β titanium alloy

KW - Single β

KW - Strain-induced martensitic transformation

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U2 - 10.1016/j.ijfatigue.2022.107497

DO - 10.1016/j.ijfatigue.2022.107497

M3 - 文章

AN - SCOPUS:85146049546

SN - 0142-1123

VL - 169

JO - International Journal of Fatigue

JF - International Journal of Fatigue

M1 - 107497

ER -

Cyclic deformation response and strain-induced martensitic transformation of β single phase Ti-35421 alloy

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Keywords

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