In-situ observations of the tensile deformation and fracture behavior of a fine-grained titanium alloy sheet

Xuehua Zhang; Shuangyin Zhang; Qinyang Zhao; Yongqing Zhao; Rong Li; Weidong Zeng

doi:10.1016/j.jallcom.2018.01.009

In-situ observations of the tensile deformation and fracture behavior of a fine-grained titanium alloy sheet

Xuehua Zhang, Shuangyin Zhang, Qinyang Zhao, Yongqing Zhao, Rong Li, Weidong Zeng

School of Materials Sience and Engineering

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

36 Scopus citations

Abstract

Deformation and crack initiation of industrial Ti-6Al-4V titanium alloy sheet were investigated using in-situ scanning electron microscopy (SEM) at room temperature. The results showed that slip band originated from α/α and α/β interfaces when the tension reaches the yield stage, and the slip mode develops from single slip to multi slip and finally the cross-slip occurs. Microcracks initiate primarily at the phase boundary or along the slip band within α phase, cracks are mainly connected along the 45° line. The fracture surface is full of dimples. Intergranular cracking is the main fracture mechanism.

Original language	English
Pages (from-to)	660-668
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	740
DOIs	https://doi.org/10.1016/j.jallcom.2018.01.009
State	Published - 5 Apr 2018

Keywords

Fracture surface
In-situ SEM
Slip band
Ti-6Al-4V titanium alloy

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10.1016/j.jallcom.2018.01.009

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title = "In-situ observations of the tensile deformation and fracture behavior of a fine-grained titanium alloy sheet",

abstract = "Deformation and crack initiation of industrial Ti-6Al-4V titanium alloy sheet were investigated using in-situ scanning electron microscopy (SEM) at room temperature. The results showed that slip band originated from α/α and α/β interfaces when the tension reaches the yield stage, and the slip mode develops from single slip to multi slip and finally the cross-slip occurs. Microcracks initiate primarily at the phase boundary or along the slip band within α phase, cracks are mainly connected along the 45° line. The fracture surface is full of dimples. Intergranular cracking is the main fracture mechanism.",

keywords = "Fracture surface, In-situ SEM, Slip band, Ti-6Al-4V titanium alloy",

author = "Xuehua Zhang and Shuangyin Zhang and Qinyang Zhao and Yongqing Zhao and Rong Li and Weidong Zeng",

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TY - JOUR

T1 - In-situ observations of the tensile deformation and fracture behavior of a fine-grained titanium alloy sheet

AU - Zhang, Xuehua

AU - Zhang, Shuangyin

AU - Zhao, Qinyang

AU - Zhao, Yongqing

AU - Li, Rong

AU - Zeng, Weidong

PY - 2018/4/5

Y1 - 2018/4/5

N2 - Deformation and crack initiation of industrial Ti-6Al-4V titanium alloy sheet were investigated using in-situ scanning electron microscopy (SEM) at room temperature. The results showed that slip band originated from α/α and α/β interfaces when the tension reaches the yield stage, and the slip mode develops from single slip to multi slip and finally the cross-slip occurs. Microcracks initiate primarily at the phase boundary or along the slip band within α phase, cracks are mainly connected along the 45° line. The fracture surface is full of dimples. Intergranular cracking is the main fracture mechanism.

AB - Deformation and crack initiation of industrial Ti-6Al-4V titanium alloy sheet were investigated using in-situ scanning electron microscopy (SEM) at room temperature. The results showed that slip band originated from α/α and α/β interfaces when the tension reaches the yield stage, and the slip mode develops from single slip to multi slip and finally the cross-slip occurs. Microcracks initiate primarily at the phase boundary or along the slip band within α phase, cracks are mainly connected along the 45° line. The fracture surface is full of dimples. Intergranular cracking is the main fracture mechanism.

KW - Fracture surface

KW - In-situ SEM

KW - Slip band

KW - Ti-6Al-4V titanium alloy

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U2 - 10.1016/j.jallcom.2018.01.009

DO - 10.1016/j.jallcom.2018.01.009

M3 - 文章

AN - SCOPUS:85044374492

SN - 0925-8388

VL - 740

SP - 660

EP - 668

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

In-situ observations of the tensile deformation and fracture behavior of a fine-grained titanium alloy sheet

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Keywords

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