...Mariusz Bielawski; Kuiying Chen A computational method to evaluate fracture toughness of prospective erosion-resistant coatings using a combination of first-principles density functional theory (DFT) calculations and fracture mechanics is proposed. Elastic coefficients C 11 , C 12 , and C 44...

... x y ) 08 04 2009 15 04 2009 04 03 2010 04 03 2010 blades creep fracture fracture toughness gas turbines remaining life assessment superalloys Improvements in the performance parameters of modern heavy duty gas turbines for electric power...

... performance and component durability targets can be met over the expected life cycle for these applications. These technologies include a Si 3 N 4 or SiC with high fracture toughness, durable EBCs for Si 3 N 4 and SiC, an effective EBC∕TBC for Si C ∕ Si C , a durable oxide∕oxide ceramic matrix composite (CMC...

... at the outer surface. The material investigations were done using a trepan from the circumferential core weld. The reference temperature T 0 was calculated with the measured fracture toughness values, K J c , at brittle failure of the specimen. The K J c values show a remarkable scatter. The highest T 0...

... Engine Testing of an Advanced Alloy for Microturbine Primary Surface Recuperators ,” ASME Paper No. GT2006-90068. 06 10 2006 20 10 2006 creep fracture fracture toughness aluminium alloys niobium alloys stainless steel turbines oxidation exhaust systems Previous...

...T. Fett; D. Munz; G. Thun Bars loaded by opposite concentrated forces via rollers are appropriate test specimens for the determination of the fracture toughness, K Ic , and the crack resistance curve (R-curve) of ceramic materials. In this paper stress solutions for the proposed test specimens...

.... Natole. 04 June 2001 01 Dec 2000 01 Mar 2001 27 12 2002 creep fracture fracture toughness corrosion resistance austenitic stainless steel crystal microstructure heat treatment costing gas turbines Microturbines are a new and increasingly exciting subset...