首页> 外文会议>World Conference on Titanium v.1; 20030713-20030718; Hamburg; DE >Effect of Heat Treatment on Superplasticity of Forged Ti-6Al-4V Alloy
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Effect of Heat Treatment on Superplasticity of Forged Ti-6Al-4V Alloy

机译:热处理对锻造Ti-6Al-4V合金超塑性的影响

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Fine-structure Superplasticity is observed in alloy possessing ultra fine-grained and equiaxial microstructure. Widely used methods enabling grain refinement are typical plastic working technologies combined with appropriate heat treatment and specialized large deformation methods (Equal-Channel Angular Pressing, High Pressure Torsion). In the paper an attempt to obtain ultra fine-grained microstructure in conventional Ti-6Al-4V titanium alloy has been presented. Several schedules of plastic working and heat treatment enabling following superplastic deformation of the alloy have been analyzed. Tensile tests of Ti-6Al-4V alloy have been carried out at temperature and strain rate in the range of Superplasticity. Effect of parameters of initial and final heat treatment on superplastic behavior have been analyzed.
机译:精细结构在具有超细晶粒和等轴微结构的合金中观察到超塑性。广泛用于实现晶粒细化的方法是典型的塑性加工技术,结合适当的热处理和专门的大变形方法(等通道角挤压,高压扭转)。在本文中,已经提出了在常规的Ti-6Al-4V钛合金中获得超细晶粒组织的尝试。分析了合金的超塑性变形之后的几种塑性加工和热处理时间表。已经在超塑性范围内的温度和应变速率下进行了Ti-6Al-4V合金的拉伸试验。分析了初始和最终热处理参数对超塑性行为的影响。

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