| 钛合金绝热剪切的敏感性分析及环境温度的影响 |
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| 引用本文： | 王学滨. 钛合金绝热剪切的敏感性分析及环境温度的影响[J]. 稀有金属材料与工程, 2011, 40(5): 788-792 |
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| 作者姓名： | 王学滨 |
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| 作者单位： | 辽宁工程技术大学,辽宁,阜新,123000 |
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| 基金项目： | 辽宁省博士启动基金(20081102) |
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| 摘 要： | 通过引入与Batra及Kim类似的观点,将绝热剪切带宽度定义为绝热剪切带的中心区域的宽度(W5%),在该区域上温度比其峰值小5%,利用Johnson-cook模型及梯度塑性理论分析Ti-6A1-4V绝热剪切带的厚度随环境温度的演变规律.计算表明,随着环境温度的升高,绝热剪切带宽度增加,这与许多实验观测结果一致.当绝热剪...
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| 关 键 词： | Ti-6Al-4V 绝热剪切带 宽度 环境温度 梯度塑性理论 Johnson-Cook模型 绝热剪切敏感性 |
| 收稿时间： | 2010-06-10 |
Analysis of Adiabatic Shear Sensitivity and Effect of Ambient Temperature for Titanium Alloy |
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| Wang Xuebin. Analysis of Adiabatic Shear Sensitivity and Effect of Ambient Temperature for Titanium Alloy[J]. Rare Metal Materials and Engineering, 2011, 40(5): 788-792 |
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| Authors: | Wang Xuebin |
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| Affiliation: | Liaoning Technical University, Fuxin 123000, China |
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| Abstract: | The Johnson-Cook model and gradient-dependent plasticity were used to investigate the adiabatic shear band(ASB) width and the ambient temperature effect for Ti-6Al-4V.The ASB width was defined as the width(w5%) of the region surrounding the band center over which the temperature differed from its peak value by less than 5%,which was similar to the viewpoint proposed by Batra and Kim.Theoretical results show that at higher ambient temperatures,the ASB is wider,as is in agreement with many experimental observ... |
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| Keywords: | Ti-6Al-4V adiabatic shear band width ambient temperature gradient-dependent plasticity Johnson-Cook model adiabatic shear sensitivity |
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