Effect of skew angle of holes on the tensile behavior of a Ni-base single crystal superalloy

Multiscale analysis of thermomechanical stresses in double wall transpiration cooling systems for gas turbine blades

“…Aerothermal studies have taken into account coolant-mainstream gas interactions [15,16], turbulence and vorticity production [17,18], crossflow orientation effects [19], and the effect of hole shape, spacing [19][20][21] and surface roughness [22]. The evaluation of mechanical performance general centres on prediction of damage development and failure under creep-fatigue conditions [23][24][25][26] informed by based on thermal-elastic stress analysis [27] and informed by thermomechanical fatigue and creep rupture experiments [25,26,28,29]. More recently, crystal plasticity Finite Element (FE) modelling approaches have been employed [23,30] which take into account the effect of crystallographic orientation on deformation and damage [24].…”

Effect of holes on the room temperature tensile behaviors of thin wall specimens with (210) side surface of Ni-base single crystal superalloy

“…An ARAMIS system was employed to in-situ observe the fullfield strain distribution on sample surface, which had been previously described in detail [11]. To study the development of slip bands during tensile process, the other group of samples was insitu observed using a tensile tester fitted to a LEO super35 SEM.…”

Mechanical Fatigue Testing Under Thermal Gradient and Manufacturing Variabilities in Nickel-Based Superalloy Parts with Air-Cooling Holes

“…Many works in the literature can be found concerning such kind of testings as the selection of new materials for aeronautical applications [13] or the study of real HPTB geometries [14,15]. More precisely on the damaging around cooling holes as the effect of trepanning speed laser drilling [16], through the skew angle [17] and mechanical response [18,19]. Those experimental roll-out are recently regaining interest since the recent willing of breakthrough in aeronautical developments.…”