Uwe Glatzel

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Ni Ni3Al 3Al ⇔ nickel solid solution nickel atoms in face centre aluminium atoms on cube corners d Ni3Al = 358,0 pm d nickel solid sol. = 358,7 pm in nickel solid solution � statistical distribution of atoms University Bayreuth Uwe Glatzel, Metals and Alloys 18
Optimal Precipitation Hardening • round dparticles i l (better than needle-shaped) • hi high h volume l fraction f i • finely dispersed • small ll particles ti l ( ) • hard precipitates, soft ft matrix t i in text books no information given on optimum misfit 500 nm University Bayreuth Uwe Glatzel, Metals and Alloys 19
Page 1 and 2: Single Crystal Nickel Based Superal
Page 3 and 4: Superalloys for Extreme DDemands d
Page 5 and 6: adius r [m] Stress σ at the Foot o
Page 7 and 8: η = max theor. h Coefficient of Ef
Page 9 and 10: floww stresss [MPaa] 500 400 Why ni
Page 11 and 12: History y Flight g Engines g (very
Page 13 and 14: Content • motivation: history, ap
Page 15 and 16: Heat Treatment example: CMSX-4 stan
Page 17: Microstructure ttwo-phase, h single
Page 21 and 22: Two-Phase but 100% Coherent => Inte
Page 23 and 24: in γ' phase compression tension St
Page 25 and 26: Variation of Misfit due to Dendriti
Page 27 and 28: Content • motivation: history, ap
Page 29 and 30: 00> [GPa] E
Page 31 and 32: High Temperature Deformation up to
Page 33 and 34: te [s ] -1 strain rat ] Orientation
Page 35 and 36: [001] crystal orientation: • fast
Page 37 and 38: Dislocation configuration during pr
Page 39 and 40: tension FEM calculations of stress
Page 41 and 42: Stress Induced Diffusion (EDX-TEM)
Page 43 and 44: Summary: changes h occuring i dduri
Page 45 and 46: Outlook • International patent (G
Page 47 and 48: PPt 77Al Al14Cr C 6Ni Ni6 12h @1500
Page 49 and 50: Stress 1000 100 Creep Properties Pl

Uwe Glatzel

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