高强高韧损伤容限型钛合金TC21研制

Research on High Strength, High Toughness and High Damage-tolerant Titanium Alloy-TC21

摘要:

介绍了西北有色金属研究院新研制的高强高韧损伤容限钛合金TC21的情况。合金经实验室、中试及工业规模3个周期的深入研究，其各种力学性能稳定，具有良好的强度、塑性、断裂韧性、裂纹扩展速率的匹配，是1种非常有应用前景的高强高韧损伤容限型结构钛合金。

Abstract:

A new high strength, high toughness and high dmage-tolerant TC21 titanium alloy, designed and developed in Northwest Institute for Nonferrous Metal Research,is introduced. The results show that the new alloy has stable mechanical properties through the further research from laboratory to industrial scale. TC21 possesses good match among strength, plasticity, fracture toughness and d a /d N , which has a good promising for applications.