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An experiment on dynamic loading at high strain rate was conducted for T4 deformed ZK60 magnesium alloy by means of split Hopkinson pressure bar (SHPB). The experimental results show that the flow stresses of the ZK60 alloy samples increase with the increasing of strain rate. Observation of transmission electron microscopy results indicate that a large number of second phases precipitated in the alloy after dynamic loading. The hardness measurement results show that the hardness of material is elevated from 64.40HV to 93.05HV after dynamic loading at 3 000 s-1. High-density dislocation is generated within the ZK60 alloy and numerous reinforcing phases (β′1 and β′2) precipitated in the matrix during deformation.

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采用霍普金森压杆(SHPB)对T4态变形ZK60镁合金进行了高应变速率动态加载实验,结果表明,随着应变速率增大,合金流变应力增大。透射电子显微镜观测结果表明,动态加载后合金内部有大量第二相析出。硬度测量结果表明,3 000 s-1应变速率加载后样品硬度由T4态的64.40HV提高到了93.05HV。高应变速率形变过程中,合金内部产生了高密度位错,且基体中析出了大量β′1、β′2等强化相。

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杨扬(1963—),男,湖南常德人,博士,教授,主要研究方向为材料动态行为。
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胡丽香(1998—),女,湖南益阳人,硕士研究生,主要研究方向为材料动态行为。

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胡丽香(1998—),女,湖南益阳人,硕士研究生,主要研究方向为材料动态行为。

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高应变速率载荷下ZK60镁合金的动态析出研究
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胡丽香 , 杨扬
矿冶工程杂志 | 材料 2023,43(5): 144-148
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矿冶工程杂志 | 材料 2023, 43(5): 144-148
高应变速率载荷下ZK60镁合金的动态析出研究
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胡丽香, 杨扬
作者信息
  • 中南大学 材料科学与工程学院,湖南 长沙 410081
  • 胡丽香(1998—),女,湖南益阳人,硕士研究生,主要研究方向为材料动态行为。

通讯作者:

杨扬(1963—),男,湖南常德人,博士,教授,主要研究方向为材料动态行为。
Dynamic Precipitation of ZK60 Magnesium Alloy Under High-Strain-Rate Loading
Lixiang HU, Yang YANG
Affiliations
  • School of Material Science and Engineering, Central South University, Changsha, 410083, Hunan, China
出版时间: 2023-10-01 doi: 10.3969/j.issn.0253-6099.2023.05.033
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采用霍普金森压杆(SHPB)对T4态变形ZK60镁合金进行了高应变速率动态加载实验,结果表明,随着应变速率增大,合金流变应力增大。透射电子显微镜观测结果表明,动态加载后合金内部有大量第二相析出。硬度测量结果表明,3 000 s-1应变速率加载后样品硬度由T4态的64.40HV提高到了93.05HV。高应变速率形变过程中,合金内部产生了高密度位错,且基体中析出了大量β′1、β′2等强化相。

高应变速率  /  动态析出  /  ZK60镁合金  /  维氏硬度  /  析出相  /  β′1相  /  β′2

An experiment on dynamic loading at high strain rate was conducted for T4 deformed ZK60 magnesium alloy by means of split Hopkinson pressure bar (SHPB). The experimental results show that the flow stresses of the ZK60 alloy samples increase with the increasing of strain rate. Observation of transmission electron microscopy results indicate that a large number of second phases precipitated in the alloy after dynamic loading. The hardness measurement results show that the hardness of material is elevated from 64.40HV to 93.05HV after dynamic loading at 3 000 s-1. High-density dislocation is generated within the ZK60 alloy and numerous reinforcing phases (β′1 and β′2) precipitated in the matrix during deformation.

high strain rate  /  dynamic precipitation  /  ZK60 magnesium alloy  /  Vickers hardness  /  precipitated phases  /  β′1 phase  /  β′2 phase
胡丽香, 杨扬. 高应变速率载荷下ZK60镁合金的动态析出研究. 矿冶工程杂志, 2023 , 43 (5) : 144 -148 . DOI: 10.3969/j.issn.0253-6099.2023.05.033
Lixiang HU, Yang YANG. Dynamic Precipitation of ZK60 Magnesium Alloy Under High-Strain-Rate Loading[J]. Mining and Metallurgical Engineering, 2023 , 43 (5) : 144 -148 . DOI: 10.3969/j.issn.0253-6099.2023.05.033
  • 国家自然科学基金(51871243)
  • 国家自然科学基金(51574290)
2023年第43卷第5期
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doi: 10.3969/j.issn.0253-6099.2023.05.033
  • 接收时间:2023-04-28
  • 首发时间:2026-03-05
  • 出版时间:2023-10-01
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  • 收稿日期:2023-04-28
基金
国家自然科学基金(51871243)
国家自然科学基金(51574290)
作者信息
    中南大学 材料科学与工程学院,湖南 长沙 410081

通讯作者:

杨扬(1963—),男,湖南常德人,博士,教授,主要研究方向为材料动态行为。
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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