Near Net Shape Forging of Titanium Alloy Turbine Blade.

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概要

• 論文の詳細を見る

• The isothermal forging process has been developed to produce turbine blades made of near β Ti-alloy Ti-10V-2Fe-3Al. It is important to set the preform at the optimum position of the die in order to get a high precision product. The deformation analysis by using FEM is effective to determine the optimum position. And also it is necessary to avoid buckling induced by the restriction of axial elongation of the material.As a result, Ti-10V-2Fe-3Al blades could be formed precisely by using only one stage of forging, and machining was needed only at the root. The thickness of the oxide layer induced on the surface of the forged blade was only 70 μm. The mechanical properties of Ti-10V-2Fe-3Al blades after forging and annealing were superior to those of Ti-6Al-4V blades and were nearly uniform across the length of the blades.

• The Iron and Steel Institute of Japanの論文

著者

• Takemura Atsushi

  Materials Research Laboratory, Kobe Steel, Ltd.

• Ashida Yoshio

  Materials Research Laboratories, Kobe Steel, Ltd.

• Morita Akiyasu

  Mechanical Engineering Research Laboratory, Kobe Steel, Ltd.

• Hattori Shigeo

  Mechanical Engineering Research Laboratory, Kobe Steel, Ltd.

• Tani Kazuhito

  Titanium Metals Technology Control Department, Kobe Steel, Ltd.

関連論文

• Estimation of Recrystallized Grain Size under Continuous Annealing of Cold-rolled β Titanium Alloy Strips
• Near Net Shape Forging of Titanium Alloy Turbine Blade.
• Active Corrosion Rate for Ti-based Alloys in Aqueous Corrosion and Its Correlation with the Bond Order Obtained by Electron Theory.
• Isothermal Forging of TiAl-based Intermetallic Compounds.

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