FIELD: metallurgy.
SUBSTANCE: proposed invention can be used in producing aircraft structures from titanium alloys. Welding is performed in one pass with metal cooling rate in thermal effects zone in temperature range from Tα+β→β to Trs determined by formula VCOOL=K·(50…130)°C/s, where Tα+β→β is the temperature of polymorphous conversion; Trs is the temperature of recrystallisation start; K is the factor to allow for metal physical and mechanical properties, K=0.8… 1.5. Annealing temperature TANN is determined by formula TANN=VCOOL·K1+370, where K1 is the factor depending upon doping level and metal strength, K1=0.1…1.5.
EFFECT: longer service life.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING ARTICLE FROM TITANIUM ALLOY AND METHOD FOR THERMAL PROCESSING OF ARTICLE FROM TITANIUM ALLOY | 2001 |
|
RU2205891C2 |
| MANUFACTURING METHOD FOR WELDED TITANIUM TUBES | 2015 |
|
RU2613256C1 |
| METHOD OF HEAT TREATMENT OF TITANIUM AND TITANIUM ALLOYS | 1996 |
|
RU2100473C1 |
| METHOD FOR MANUFACTURE OF ARTICLES FROM TITANIUM AND TITANIUM ALLOYS | 2001 |
|
RU2205890C2 |
| METHOD OF HEAT TREATMENT OF SHEET WELDED JOINTS OF PSEUDO ALPHA AND (ALPHA+BETA)TITANIUM ALLOYS | 0 |
|
SU1578225A1 |
| PROCESS FOR TREATING WELDED JOINTS OF HYDRIDE-FORMING METALS | 0 |
|
SU907083A1 |
| METHOD FOR PRODUCING HEAT-RESISTANT COATING ON TITANIUM PLATE SURFACES | 2023 |
|
RU2807245C1 |
| METHOD OF HARDENING TITANIUM ALLOYS IN GAS ENVIRONMENT | 2007 |
|
RU2365671C1 |
| METHOD FOR PRODUCING HEAT-RESISTANT COATING | 2023 |
|
RU2807243C1 |
| METHOD FOR MAKING EXPANDED ANNULAR BLANKS OF HIGH ALLOYS | 1999 |
|
RU2173598C2 |
