part-reacting-at-stress-types Colder areas aretension zonesHotter areas arepressure zonesForce-controlled stressStrain-controlled stress(thermal stress)A part reacts very differently to these two stresstypes:Centrifugal forceAn integral cast turbine stator assemblyis subjected to high thermal stresses during the casting process and operation, which can lead to crack initiation. Cracks in the solder-joinedmetal membraneCracks in centering lugsEdge cracks atblade transitionsEdge cracks atblade transitionsCracks in thebladesLengthwise cracksat the blade/shroudtransitionThermal fatigue is a typical strain-controlled process: