| TC11合金热变形特性及变形参数对组织的影响 |
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| 引用本文： | 毕中南,张麦仓,周世杰,张瑞,佟琦.TC11合金热变形特性及变形参数对组织的影响[J].航空制造技术,2009(10). |
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| 作者姓名： | 毕中南 张麦仓 周世杰 张瑞 佟琦 |
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| 作者单位： | 1. 北京科技大学
2. 首都航天机械公司 |
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| 摘 要： | 通过热模拟压缩试验,分析了TC11合金的高温变形特性及不同变形参数下的组织演化规律,用非线性回归方法建立了TC11合金Kumar型材料的本构关系,得出了TC11合金的高温流变曲线基本呈流变软化特征的结论;最后应用MSC,Autoforge软件对TC11合金某型号涡轮盘的等温锻造工艺进行了模拟式工艺设计,验证了TC11合金材料本构关系的工程适用性.
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| 关 键 词： | 钛合金 热变形 组织演化 |
Influence of TC11 Alloy Hot Deformation and Deformation Parameters on Microstructure |
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| Abstract: | Hot deformation behavior and microstructure evolution of TC11 alloy are studied by hot compression tests.The stress-strain curves appear steady flow softening characteristics at high temperature. A Kumar type constitutive equation for TC11 alloy is established by nonlinear regression analysis.Applying this constitutive equation in commercial FEM software of MSC/Autoforge,hot die forging process of TC11 alloy turbine disc is then simulated.The results show that the Kumar-type constitutive relationship meets ... |
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| Keywords: | TC11 Titanium Alloy Hot deformation Microstructure evolution |
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