Fatigue Strength of Blade with Disk Joins, Obtained by Linear Friction Welding

[摘要] Fatigue tests of blisk welded sections is described. The bimetal blisk contains VT6 alloy (Ti6Al4V) blades and VT8-1 alloy (Ti6.5Al3.5Mo1.2Sn1.2Zr0.2Si) disc, joined by linear friction welding. The test results indicate that the combination of materials VT6 + VT8-1 can be used for bladed disks manufacturing, and technological factors, including availability of weld does not have a decisive influence on the fatigue strength of the investigated structure.

[发布机构] Ufa State Aviation Technical University (USATU), K. Marx Street 12, Ufa; 450008, Russia^1;Ufa Engine Industrial Association (UMPO), Ferin Street 2, Ufa; 450039, Russia^2

[效力级别] 机械制造

[关键词] Bladed disk;Fatigue strength;Linear friction welding;Technological factors;Ti-6al-4v