Fabrication and characterization of a novel β metastable Ti-Mo-Zr alloy with large ductility and improved yield strength

Jin Yong Zhang; Jin Shan Li; Guan Fang Chen; Lin Liu; Zheng Chen; Qing Kun Meng; Bao Long Shen; Fan Sun; Frédéric Prima

doi:10.1016/j.matchar.2018.03.031

Fabrication and characterization of a novel β metastable Ti-Mo-Zr alloy with large ductility and improved yield strength

Jin Yong Zhang, Jin Shan Li, Guan Fang Chen, Lin Liu, Zheng Chen, Qing Kun Meng, Bao Long Shen, Fan Sun, Frédéric Prima

School of Materials Sience and Engineering

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

64 Scopus citations

Abstract

In this paper, a novel ternary β-metastable titanium alloy, Ti-12Mo-5Zr (wt%), was designed based on the “d-electron” alloy design theory. The Ti-12Mo-5Zr alloy displays excellent combination of improved yielding stress (>650 MPa), high ductility (uniform elongation ≈30%) and work-hardening behaviour. The detailed microstructural analysis indicates that the superior performances arise from the synergic effects between phase transformation induced plasticity (TRIP) and twinning induced plasticity (TWIP). Conforming to the design strategy, the improvement of mechanical performance results from the addition of Zr alloying element in substituting Ti, attributing to solution hardening effect and the increasing of critical resolved shear stress (CRSS) of stress induced martensitic transformation (SIM α″).

Original language	English
Pages (from-to)	421-427
Number of pages	7
Journal	Materials Characterization
Volume	139
DOIs	https://doi.org/10.1016/j.matchar.2018.03.031
State	Published - May 2018

Keywords

Alloy design
Deformation mechanism
Mechanical behaviour
Microstructure
TRIP/TWIP effects
β-metastable titanium alloys

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10.1016/j.matchar.2018.03.031

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title = "Fabrication and characterization of a novel β metastable Ti-Mo-Zr alloy with large ductility and improved yield strength",

abstract = "In this paper, a novel ternary β-metastable titanium alloy, Ti-12Mo-5Zr (wt%), was designed based on the “d-electron” alloy design theory. The Ti-12Mo-5Zr alloy displays excellent combination of improved yielding stress (>650 MPa), high ductility (uniform elongation ≈30%) and work-hardening behaviour. The detailed microstructural analysis indicates that the superior performances arise from the synergic effects between phase transformation induced plasticity (TRIP) and twinning induced plasticity (TWIP). Conforming to the design strategy, the improvement of mechanical performance results from the addition of Zr alloying element in substituting Ti, attributing to solution hardening effect and the increasing of critical resolved shear stress (CRSS) of stress induced martensitic transformation (SIM α″).",

keywords = "Alloy design, Deformation mechanism, Mechanical behaviour, Microstructure, TRIP/TWIP effects, β-metastable titanium alloys",

author = "Zhang, {Jin Yong} and Li, {Jin Shan} and Chen, {Guan Fang} and Lin Liu and Zheng Chen and Meng, {Qing Kun} and Shen, {Bao Long} and Fan Sun and Fr{\'e}d{\'e}ric Prima",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Inc.",

year = "2018",

month = may,

doi = "10.1016/j.matchar.2018.03.031",

language = "英语",

volume = "139",

pages = "421--427",

journal = "Materials Characterization",

issn = "1044-5803",

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T1 - Fabrication and characterization of a novel β metastable Ti-Mo-Zr alloy with large ductility and improved yield strength

AU - Zhang, Jin Yong

AU - Li, Jin Shan

AU - Chen, Guan Fang

AU - Liu, Lin

AU - Chen, Zheng

AU - Meng, Qing Kun

AU - Shen, Bao Long

AU - Sun, Fan

AU - Prima, Frédéric

PY - 2018/5

Y1 - 2018/5

N2 - In this paper, a novel ternary β-metastable titanium alloy, Ti-12Mo-5Zr (wt%), was designed based on the “d-electron” alloy design theory. The Ti-12Mo-5Zr alloy displays excellent combination of improved yielding stress (>650 MPa), high ductility (uniform elongation ≈30%) and work-hardening behaviour. The detailed microstructural analysis indicates that the superior performances arise from the synergic effects between phase transformation induced plasticity (TRIP) and twinning induced plasticity (TWIP). Conforming to the design strategy, the improvement of mechanical performance results from the addition of Zr alloying element in substituting Ti, attributing to solution hardening effect and the increasing of critical resolved shear stress (CRSS) of stress induced martensitic transformation (SIM α″).

AB - In this paper, a novel ternary β-metastable titanium alloy, Ti-12Mo-5Zr (wt%), was designed based on the “d-electron” alloy design theory. The Ti-12Mo-5Zr alloy displays excellent combination of improved yielding stress (>650 MPa), high ductility (uniform elongation ≈30%) and work-hardening behaviour. The detailed microstructural analysis indicates that the superior performances arise from the synergic effects between phase transformation induced plasticity (TRIP) and twinning induced plasticity (TWIP). Conforming to the design strategy, the improvement of mechanical performance results from the addition of Zr alloying element in substituting Ti, attributing to solution hardening effect and the increasing of critical resolved shear stress (CRSS) of stress induced martensitic transformation (SIM α″).

KW - Alloy design

KW - Deformation mechanism

KW - Mechanical behaviour

KW - Microstructure

KW - TRIP/TWIP effects

KW - β-metastable titanium alloys

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U2 - 10.1016/j.matchar.2018.03.031

DO - 10.1016/j.matchar.2018.03.031

M3 - 文章

AN - SCOPUS:85044140919

SN - 1044-5803

VL - 139

SP - 421

EP - 427

JO - Materials Characterization

JF - Materials Characterization

ER -

Fabrication and characterization of a novel β metastable Ti-Mo-Zr alloy with large ductility and improved yield strength

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Keywords

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