| TA11钛合金高温变形微观组织演变分析 |
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| 引用本文： | 党淼,齐广霞,史丽坤. TA11钛合金高温变形微观组织演变分析[J]. 热加工工艺, 2010, 39(4) |
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| 作者姓名： | 党淼 齐广霞 史丽坤 |
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| 作者单位： | 1. 沈阳理工大学材料科学与工程学院,辽宁,沈阳,110159
2. 沈阳黎明航空发动机,集团,有限责任公司,辽宁,沈阳,110043 |
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| 摘 要： | 采用Gleeble-3500热模拟实验机对TA11(Ti-8Al-1Mo-1V)钛合金进行变形温度为880～1010℃、应变速率为0.01～50s-1、变形程度为30%和50%的压缩变形实验,研究其在高温变形条件下的动态再结晶行为。基于定向金相测量,通过回归分析建立了TA11钛合金高温变形时初生α相平均晶粒尺寸、动态再结晶体积分数以及动态再结晶晶粒尺寸模型,模型的计算值与实验值的平均误差小于12%,能较好地描述材料在热加工过程中发生动态再结晶的动力学规律。
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| 关 键 词： | TA11钛合金 微观组织 动态再结晶 |
Analyse on Microstructure Evolution of TA11 Titanium Alloy During Hot Compressive Deformation |
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| DANG Miao,QI Guangxia,SHI Likun. Analyse on Microstructure Evolution of TA11 Titanium Alloy During Hot Compressive Deformation[J]. Hot Working Technology, 2010, 39(4) |
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| Authors: | DANG Miao QI Guangxia SHI Likun |
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| Affiliation: | DANG Miao1,QI Guangxia1,SHI Likun2 (1.College of Materials Science , Engineering,Shenyang Ligong University,Shenyang 110159,China,2.Shenyang Liming Aero-engine Group Corporation,Shenyang 110043,China) |
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| Abstract: | The compression deformation test of TA11 (Ti-8Al-1Mo-1V) titanium alloy at 880～1010 ℃, strain rate between 0.01s~(-1) and 50 s~(-1), deformation of 30% and 50% was carried out using Gleeble-3500 thermal simulation machine, its dynamic recrystallization volume fraction and dynamic recrystallization grain size of TA11 titanium alloy in (α+β) field were established based on quantitative metallurgical technique using regression analysis. The average difference between the calculated and experimental values is less than 12%. The model can describe the law of the dynamic recrystallization kinetics of the material during thermal processing. |
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| Keywords: | TA 11 titanium alloy microstructure dynamic recrystallization |
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