| 组织及应变率对TC6钛合金绝热剪切敏感性的影响 |
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| 引用本文： | 孙坤,程兴旺,王富耻,苗普,赵双赞.组织及应变率对TC6钛合金绝热剪切敏感性的影响[J].稀有金属材料与工程,2008,37(10). |
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| 作者姓名： | 孙坤 程兴旺 王富耻 苗普 赵双赞 |
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| 作者单位： | 1. 北京理工大学,北京,100081;楚雄师范学院,云,南楚雄,675000
2. 北京理工大学,北京,100081 |
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| 摘 要： | 采用分离式Hopkinson Bar技术对不同热处理工艺的TC6钛合金进行了动态剪切试验,研究了不同组织状态及不同应变率下的绝热剪切敏感性,并进行了金相观察及分析.结果表明:不同组织对TC6钛合金的绝热剪切敏感性有很大的影响,片状组织的绝热剪切敏感性最小,而球状组织的绝热剪切敏感性最高;随着组织中á相的增加,材料的绝热剪切敏感性增加;随着同一类型中晶粒尺寸的减小,材料的绝热剪切敏感性降低;随应变率的提高,TC6钛合金的绝热剪切敏感性也随之增加.
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| 关 键 词： | 钛合金 绝热剪切 组织 应变率 |
Study on Sensitivity of Adiabatic Shear of TC6 Alloy under Different Strain Rate and Morphology |
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| Sun Kun,Cheng Xingwang,Wang Fuchi,Miao Pu,Zhao Shuangzan.Study on Sensitivity of Adiabatic Shear of TC6 Alloy under Different Strain Rate and Morphology[J].Rare Metal Materials and Engineering,2008,37(10). |
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| Authors: | Sun Kun Cheng Xingwang Wang Fuchi Miao Pu Zhao Shuangzan |
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| Affiliation: | Sun Kun1,2,Cheng Xingwang1,Wang Fuchi1,Miao Pu1,Zhao Shuangzan1 (1. Beijing Institute of Technology,Beijing 100081,China) (2. Chuxiong Normal University,Chuxiong 675000,China) |
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| Abstract: | Using the technology of split Hopkinson Bar, the dynamic shearing experiments on TC6 titanium alloy with different heat treatment have been carried out. The adiabatic shearing sensitivity under different morphology and different strain rate has been studied. Also, metallographic analysis has been done. It is shown that the shape of morphology has great effect on adiabatic shearing sensitivity of TC6 titanium alloy. The lamellar morphology has the lowest adiabatic shearing sensitivity while the spherical mor... |
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| Keywords: | titanium alloy adiabatic shear morphology strain rate |
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