Research on High Strength and High Toughness Titanium Alloy with Damage Tolerance

Yong Qing Zhao; Heng Lei Qu

doi:10.4028/www.scientific.net/MSF.654-656.586

Paper Titles

High-Temperature Sulfurization of Crofer 22APU in H₂/H₂S Atmosphere
p.566

High Temperature Alloys from Nb-Cr-Si System with Minor Additions
p.570

Thixomolded® and Thermomechanically Processed Fine-Grained Magnesium Alloys
p.574

Development of the Microstructure and Texture of RE Containing Magnesium Alloys during Hot Rolling
p.580

Research on High Strength and High Toughness Titanium Alloy with Damage Tolerance
p.586

Precipitation Sequence in an Al-Si-Mg Foundry Alloy
p.590

Microstructure and Joint Strength of Similar- and Dissimilar Lap Joints Fabricated by Several Advanced Solid-State Welding Methods
p.596

Building Capability through Benchmarking and Technology Transfer
p.602

Temperature Dependence of Compressive Deformation Behavior of Mg₈₉Zn₄Y₇ Extruded LPSO-Phase Alloys
p.607

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Research on High Strength and High Toughness Titanium Alloy with Damage Tolerance

Abstract:

As the concept of aerospace design is changed, research objectives of titanium alloys also changed from high strength to high damage tolerance. High strength, high toughness titanium alloys with damage-tolerance have been investigated under the support of a national project since 2003. TC21 titanium alloy is the first Chinese-developed high strength, high toughness and damage-tolerance titanium alloy. The mechanical property of TC21 alloy is sensitive to solution temperature and aging temperature. The rods of TC21 alloy with the diameter of 20mm and 90mm possess good mechanical properties after solution at 900°C followed by aging at 600°C.