Manufacturing method for high-niobium TiAl system intermetallic compound and TC4 titanium alloy composite component

• Main Authors: ZHAO FENG, LU ZHEN'GANG, SUN YUEGANG, SHI JINLIANG, WANG LIANG, LI SHENGGANG, LANG ZEBAO, WANG FENG
• Format: Patent
• Language: Chinese; English
• Published: 09.03.2016
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to a manufacturing method for a high-niobium TiAl system intermetallic compound and a TC4 titanium alloy composite component. Through the process methods such as the powder-solid joint containing and TC4 titanium alloy powder pretreatment technology and the high-niobium TiAl system intermetallic compound and TC4 titanium alloy hot isostatic pressing diffusion bonding technology, efficient and reliable welding under any complex-shape molded surfaces is carried out on a welding position of the connection part of the high-niobium TiAl system intermetallic compound and a TC4 titanium alloy, and the prepared high-niobium TiAl system intermetallic compound and the prepared TC4 titanium alloy composite component are stable and reliable in welding performance, compact in welding area, free of blind cracks and high in connector strength coefficient.