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Effects of Strain Rate on Susceptibility of TB6 Titanium Alloy to Adiabatic Shear
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Xiaogang LIU, Zhenghua GUO, Yifan LI, Lihong JIANG, Chenwen FENG
Mining and Metallurgical Engineering | 2024, 44(1) : 157 - 160
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Mining and Metallurgical Engineering | 2024, 44(1): 157-160
• MATERIALS •
Effects of Strain Rate on Susceptibility of TB6 Titanium Alloy to Adiabatic Shear
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Xiaogang LIU, Zhenghua GUO, Yifan LI, Lihong JIANG, Chenwen FENG
Affiliations
  • School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, Jiangxi, China
Published: 2024-02-01 doi: 10.3969/j.issn.0253-6099.2024.01.034
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The effect of strain rate on susceptibility of TB6 titanium alloy to adiabatic shear was investigated through dynamic loading of hat-shaped specimen of TB6 titanium alloy by using a split-Hopkinson compression bar at room temperature. The following results are obtained: all four groups of specimens exhibit obvious strain hardening effects at a strain rate of 1 950-2 510 s-1; with the rising of adiabatic temperature, adiabatic shear bands (ASBs) form in all four groups of specimens due to thermoplastic instability; there is no obvious deformation gradient in the transition zone between the matrix and the adiabatic shear band due to the influence of impact load and material grain size; the equiaxed grains with size of 100 nm are formed in the hot shear band due to rotational dynamic recrystallization. By observing the metallographic structure, characterizing the adiabatic shear sensitivity, and calculating the expansion energy, it can be inferred that the susceptibility of TB6 titanium alloy to adiabatic shear increases with the increase of strain rate.

adiabatic shear susceptibility  /  adiabatic shear band  /  strain rate  /  rotating dynamic recrystallization  /  TB6 titanium alloy  /  split-Hopkinson pressure bar
Xiaogang LIU, Zhenghua GUO, Yifan LI, Lihong JIANG, Chenwen FENG. Effects of Strain Rate on Susceptibility of TB6 Titanium Alloy to Adiabatic Shear[J]. Mining and Metallurgical Engineering, 2024 , 44 (1) : 157 -160 . DOI: 10.3969/j.issn.0253-6099.2024.01.034
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Year 2024 volume 44 Issue 1
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doi: 10.3969/j.issn.0253-6099.2024.01.034
  • Receive Date：2023-08-21
  • Online Date：2026-03-20
  • Published：2024-02-01
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  • Received：2023-08-21
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    School of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, Jiangxi, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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