MICROSTRUCTURAL MORPHOLOGIES AND MECHANICAL BEHAVIORS OF NICKEL-BASE SINGLE CRYSTAL SUPERALLOY CMSX-2 DURING PROLONGED TENSION
MICROSTRUCTURAL MORPHOLOGIES AND MECHANICALBEHAVIORS OF NICKEL-BASE SINGLE CRYSTAL SUPERALLOY CMSX-2 DURING PROLONGED TENSION

1.IntroductionResearchesondirectionalc0arsening0f0rdered(Lc)ry'precipitatesduringcreepateleVatedtemperaturesanditseffectsoncreepbehavi0rshavewidelybeendone,inv0lv-ingtheeffects0ftensileorcompressivestressstate0ntheorientation0fryidirecti0nalcoarseningll-4],heattreatmentonryimorphologyandcreepproperty5)6],ry'rafting2l4-18]andthe7matrixevoluti0.l10'l5'l6'18]oncreepbehaviorsinnickel-basesinglecrystalsu-perall0ys.Itisnod0ubtthatall0fthesehavepr0videdboththe0reticalandexperimentalbasesf0rundersta…