Effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix composite
Refractory metal particles can potentially be used to reinforce titanium matrix composites. In this research, a titanium matrix composite reinforced by 20 wt.% tungsten particles (20WP/Ti) was fabricated by powder metallurgy. The mechanical properties of 20WP/Ti were then evaluated over a broad stra...
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doaj-4d7a9944edf0403aa8911745d0a61cc82021-09-03T04:46:07ZengElsevierJournal of Materials Research and Technology2238-78542021-11-0115984995Effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix compositeYu Ren0Pengwan Chen1Zheng Li2Ziyue Zhang3Yanwei Lv4Chang Zhang5School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, PR China; Corresponding author.School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 100081, PR ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR ChinaXiamen Advanced Strength Technology Co., Ltd., Xiamen, Fujian, 361006, PR ChinaXiamen Advanced Strength Technology Co., Ltd., Xiamen, Fujian, 361006, PR ChinaRefractory metal particles can potentially be used to reinforce titanium matrix composites. In this research, a titanium matrix composite reinforced by 20 wt.% tungsten particles (20WP/Ti) was fabricated by powder metallurgy. The mechanical properties of 20WP/Ti were then evaluated over a broad strain rate range of 10−3–4 × 103 s−1. The microstructure of the composite consisted of W particle reinforcements, W diffusion regions, and an alloyed Ti matrix. The interdiffusion between W and Ti atoms produced broad diffusion regions and the Kirkendall effect. The W diffusion regions were a complex multiple-phase mixture of micron-sized β-Ti grains, nanoscale ω-Ti and α″-Ti phases and W nanoparticles. 20WP/Ti exhibited excellent mechanical properties due to the presence of multiple strengthening mechanisms including reinforcing phase strengthening, solid solution strengthening, and precipitation strengthening. The addition of W particle reinforcing phases suppressed the adiabatic shear sensitivity of the composite. When the strain rate exceeded 1400 s−1, the dynamic strength of 20WP/Ti declined upon increasing the strain rate, attributing to a mass of Kirkendall pores and the thermal softening effect of the β-Ti phase in the W diffusion region at high strain rates.http://www.sciencedirect.com/science/article/pii/S223878542100925XTitanium matrix compositeTungsten particleMicrostructureMechanical propertiesStrain rate effect |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yu Ren Pengwan Chen Zheng Li Ziyue Zhang Yanwei Lv Chang Zhang |
spellingShingle |
Yu Ren Pengwan Chen Zheng Li Ziyue Zhang Yanwei Lv Chang Zhang Effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix composite Journal of Materials Research and Technology Titanium matrix composite Tungsten particle Microstructure Mechanical properties Strain rate effect |
author_facet |
Yu Ren Pengwan Chen Zheng Li Ziyue Zhang Yanwei Lv Chang Zhang |
author_sort |
Yu Ren |
title |
Effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix composite |
title_short |
Effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix composite |
title_full |
Effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix composite |
title_fullStr |
Effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix composite |
title_full_unstemmed |
Effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix composite |
title_sort |
effect of strain rate on the mechanical properties of a tungsten particle reinforced titanium matrix composite |
publisher |
Elsevier |
series |
Journal of Materials Research and Technology |
issn |
2238-7854 |
publishDate |
2021-11-01 |
description |
Refractory metal particles can potentially be used to reinforce titanium matrix composites. In this research, a titanium matrix composite reinforced by 20 wt.% tungsten particles (20WP/Ti) was fabricated by powder metallurgy. The mechanical properties of 20WP/Ti were then evaluated over a broad strain rate range of 10−3–4 × 103 s−1. The microstructure of the composite consisted of W particle reinforcements, W diffusion regions, and an alloyed Ti matrix. The interdiffusion between W and Ti atoms produced broad diffusion regions and the Kirkendall effect. The W diffusion regions were a complex multiple-phase mixture of micron-sized β-Ti grains, nanoscale ω-Ti and α″-Ti phases and W nanoparticles. 20WP/Ti exhibited excellent mechanical properties due to the presence of multiple strengthening mechanisms including reinforcing phase strengthening, solid solution strengthening, and precipitation strengthening. The addition of W particle reinforcing phases suppressed the adiabatic shear sensitivity of the composite. When the strain rate exceeded 1400 s−1, the dynamic strength of 20WP/Ti declined upon increasing the strain rate, attributing to a mass of Kirkendall pores and the thermal softening effect of the β-Ti phase in the W diffusion region at high strain rates. |
topic |
Titanium matrix composite Tungsten particle Microstructure Mechanical properties Strain rate effect |
url |
http://www.sciencedirect.com/science/article/pii/S223878542100925X |
work_keys_str_mv |
AT yuren effectofstrainrateonthemechanicalpropertiesofatungstenparticlereinforcedtitaniummatrixcomposite AT pengwanchen effectofstrainrateonthemechanicalpropertiesofatungstenparticlereinforcedtitaniummatrixcomposite AT zhengli effectofstrainrateonthemechanicalpropertiesofatungstenparticlereinforcedtitaniummatrixcomposite AT ziyuezhang effectofstrainrateonthemechanicalpropertiesofatungstenparticlereinforcedtitaniummatrixcomposite AT yanweilv effectofstrainrateonthemechanicalpropertiesofatungstenparticlereinforcedtitaniummatrixcomposite AT changzhang effectofstrainrateonthemechanicalpropertiesofatungstenparticlereinforcedtitaniummatrixcomposite |
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