Experiences with titanium next-to-last LP blades in a 1300 MW turbine

Conference · Fri Jan 01 04:00:00 EST 1982 · Am. Soc. Mech. Eng., (Pap.); (United States)

OSTI ID:5447223

Meyer, H W

The use of titanium as a material for the end blades of LP turbines has already been investigated twenty years ago by Brown Boveri. Next-to-last LP blades in the past have several times been the cause of turbine damage, because these blades work in the zone of the first condensation and thus are subjected to mechanical stress in corrosive environment. Favorable corrosion properties of titanium provided a reason for developing and manufacturing two next-to-last titanium low pressure blade rows in 1980 and to use them in a 1300 MW plant. On the occasion of an overhaul, a visual check was carried out of the titanium blades and chemical analysis of the blade surface deposits were made. From the distribution of the deposits conclusions can be drawn, retroactively, as to why steel blades might have failed. The titanium blades are undergoing a further operation period.

• Research Organization: BBC Brown, Boveri and Company, Ltd., Baden
• OSTI ID: 5447223
• Report Number(s): CONF-821018-
• Conference Information: Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 82-JPGC-PWR-28
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104* -- Fossil-Fueled Power Plants-- Components
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALLOYS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CORROSION
DAMAGE
INSPECTION
IRON ALLOYS
IRON BASE ALLOYS
LOW PRESSURE
MACHINERY
MANUFACTURING
POWER PLANTS
STEAM TURBINES
STEELS
STRESS CORROSION
SURFACES
TITANIUM ALLOYS
TURBINE BLADES
TURBINES
TURBOMACHINERY