Omega phase formation and deformation mechanism in heat treated Ti-5553 alloy under high strain rate compression

Tayyeb Ali; Lin Wang; Xingwang Cheng; Anjin Liu; Xuefeng Xu

doi:10.1016/j.matlet.2018.10.057

Omega phase formation and deformation mechanism in heat treated Ti-5553 alloy under high strain rate compression

Tayyeb Ali, Lin Wang^*, Xingwang Cheng, Anjin Liu, Xuefeng Xu

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

16 Citations (Scopus)

Abstract

This research has been carried out to focus on the formation of omega phase and deformation mechanism in Ti-5553 heat treated (900 °C for 1-h solid solution without aging) at high strain rate compression. Split Hopkinson Pressure Bar (SHPB) was used to apply load at room temperature and the effect was characterized with the help of analyzing tools. Results ended up with the conclusions that under high strain rate loading, omega phase formation arose when two adjacent beta planes (1 1 0)ᵦ in 〈1 1 1〉ᵦ direction covered 1/6th distance of total separating distance between planes and deformation through mechanical twinning occurred when dislocations could not match superimposed strain rate.

Original language	English
Pages (from-to)	163-166
Number of pages	4
Journal	Materials Letters
Volume	236
DOIs	https://doi.org/10.1016/j.matlet.2018.10.057
Publication status	Published - 1 Feb 2019

Keywords

High strain rate
Microstructure
Omega phase
Phase transformation
Slips bands
Twinning

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10.1016/j.matlet.2018.10.057

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title = "Omega phase formation and deformation mechanism in heat treated Ti-5553 alloy under high strain rate compression",

abstract = "This research has been carried out to focus on the formation of omega phase and deformation mechanism in Ti-5553 heat treated (900 °C for 1-h solid solution without aging) at high strain rate compression. Split Hopkinson Pressure Bar (SHPB) was used to apply load at room temperature and the effect was characterized with the help of analyzing tools. Results ended up with the conclusions that under high strain rate loading, omega phase formation arose when two adjacent beta planes (1 1 0)ᵦ in 〈1 1 1〉ᵦ direction covered 1/6th distance of total separating distance between planes and deformation through mechanical twinning occurred when dislocations could not match superimposed strain rate.",

keywords = "High strain rate, Microstructure, Omega phase, Phase transformation, Slips bands, Twinning",

author = "Tayyeb Ali and Lin Wang and Xingwang Cheng and Anjin Liu and Xuefeng Xu",

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T1 - Omega phase formation and deformation mechanism in heat treated Ti-5553 alloy under high strain rate compression

AU - Ali, Tayyeb

AU - Wang, Lin

AU - Cheng, Xingwang

AU - Liu, Anjin

AU - Xu, Xuefeng

PY - 2019/2/1

Y1 - 2019/2/1

N2 - This research has been carried out to focus on the formation of omega phase and deformation mechanism in Ti-5553 heat treated (900 °C for 1-h solid solution without aging) at high strain rate compression. Split Hopkinson Pressure Bar (SHPB) was used to apply load at room temperature and the effect was characterized with the help of analyzing tools. Results ended up with the conclusions that under high strain rate loading, omega phase formation arose when two adjacent beta planes (1 1 0)ᵦ in 〈1 1 1〉ᵦ direction covered 1/6th distance of total separating distance between planes and deformation through mechanical twinning occurred when dislocations could not match superimposed strain rate.

AB - This research has been carried out to focus on the formation of omega phase and deformation mechanism in Ti-5553 heat treated (900 °C for 1-h solid solution without aging) at high strain rate compression. Split Hopkinson Pressure Bar (SHPB) was used to apply load at room temperature and the effect was characterized with the help of analyzing tools. Results ended up with the conclusions that under high strain rate loading, omega phase formation arose when two adjacent beta planes (1 1 0)ᵦ in 〈1 1 1〉ᵦ direction covered 1/6th distance of total separating distance between planes and deformation through mechanical twinning occurred when dislocations could not match superimposed strain rate.

KW - High strain rate

KW - Microstructure

KW - Omega phase

KW - Phase transformation

KW - Slips bands

KW - Twinning

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DO - 10.1016/j.matlet.2018.10.057

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SN - 0167-577X

VL - 236

SP - 163

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JO - Materials Letters

JF - Materials Letters

ER -

Omega phase formation and deformation mechanism in heat treated Ti-5553 alloy under high strain rate compression

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Keywords

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