L12-Strengthened Cobalt-Base Superalloys
A Suzuki, H Inui, TM Pollock - Annual Review of Materials …, 2015 - annualreviews.org
The discovery of the γ′-Co3 (Al, W) phase with an L12 structure provided Co-base alloys
with a new strengthening mechanism, enabling a new class of high-temperature material …
with a new strengthening mechanism, enabling a new class of high-temperature material …
Elemental partitioning and mechanical properties of Ti-and Ta-containing Co–Al–W-base superalloys studied by atom probe tomography and nanoindentation
Elemental partitioning and hardness in Ti-and Ta-containing Co-base superalloys,
strengthened by γ′-Co 3 (Al, W) precipitates, have been studied by local measurements …
strengthened by γ′-Co 3 (Al, W) precipitates, have been studied by local measurements …
Partition behavior of alloying elements and phase transformation temperatures in Co–Al–W-base quaternary systems
The phase equilibria among γ (A1), γ′(L12), χ (D019), β (B2) and μ (D85) phases and the
γ′ solvus and γ solidus temperatures were investigated in the Co–Al–W-based quaternary …
γ′ solvus and γ solidus temperatures were investigated in the Co–Al–W-based quaternary …
Diffusion of solutes in fcc Cobalt investigated by diffusion couples and first principles kinetic Monte Carlo
The interdiffusivity of Al and the transition metal solutes Ti, V, Cr, Mn, Fe, Nb, Mo, Ru, Ta, W,
and Re in fcc Co is characterized at 1373 K, 1473 K and 1573 K by binary diffusion couples …
and Re in fcc Co is characterized at 1373 K, 1473 K and 1573 K by binary diffusion couples …
Creep-induced planar defects in L12-containing Co-and CoNi-base single-crystal superalloys
Precipitate shearing mechanisms during single-crystal tensile creep of L1 2-containing Co-
and CoNi-base alloys have been investigated. Interrupted creep tests were conducted at …
and CoNi-base alloys have been investigated. Interrupted creep tests were conducted at …
L12‐Strengthened Co‐Rich Alloys for High‐Temperature Structural Applications: A Critical Review
Tremendous efforts have been made to accelerate the design of advanced high‐
temperature structural materials, leading to the development of high‐performance Ni‐based …
temperature structural materials, leading to the development of high‐performance Ni‐based …
A new tungsten-free γ–γ'Co–Al–Mo–Nb-based superalloy
We present the first report of a tungsten-free cobalt-based superalloy having a composition
Co–10Al–5Mo–2Nb. The alloy is strengthened by cuboidal precipitates of metastable Co 3 …
Co–10Al–5Mo–2Nb. The alloy is strengthened by cuboidal precipitates of metastable Co 3 …
Multicomponent γ'-strengthened Co-based superalloys with increased solvus temperatures and reduced mass densities
Abstract Several Co-Al-(W)-based γ-(FCC)/γ'-(L1 2) alloys are investigated to combine
recent results indicating significant increases in the γ′-solvus temperature with additions of …
recent results indicating significant increases in the γ′-solvus temperature with additions of …
Novel wrought γ/γ′ cobalt base superalloys with high strength and improved oxidation resistance
S Neumeier, LP Freund, M Göken - Scripta Materialia, 2015 - Elsevier
New polycrystalline Co-base superalloys with γ/γ′ microstructure have been developed,
which show excellent mechanical properties and enhanced oxidation behavior. The γ …
which show excellent mechanical properties and enhanced oxidation behavior. The γ …
High resolution energy dispersive spectroscopy mapping of planar defects in L12-containing Co-base superalloys
Local chemical fluctuations in the vicinity of superlattice intrinsic stacking faults (SISFs) have
been observed via high resolution energy dispersive X-ray spectroscopy (EDS) mapping in …
been observed via high resolution energy dispersive X-ray spectroscopy (EDS) mapping in …