[HTML][HTML] Design and tailoring of alloys for additive manufacturing

TM Pollock, AJ Clarke, SS Babu - Metallurgical and Materials Transactions …, 2020 - Springer
Additive manufacturing (AM) promises a major transformation for manufacturing of metallic
components for aerospace, medical, nuclear, and energy applications. This perspective …

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 …

[HTML][HTML] A defect-resistant Co–Ni superalloy for 3D printing

SP Murray, KM Pusch, AT Polonsky, CJ Torbet… - Nature …, 2020 - nature.com
Additive manufacturing promises a major transformation of the production of high economic
value metallic materials, enabling innovative, geometrically complex designs with minimal …

[HTML][HTML] Alloying effects in polycrystalline γ′ strengthened Co–Al–W base alloys

HY Yan, VA Vorontsov, D Dye - Intermetallics, 2014 - Elsevier
A polycrystalline hot working ingot metallurgy processing route for γ/γ′ Co–Al–W
superalloys has been developed. Based on Co–7Al–7W (at%), substitutions of Mo, V, Ti, Ta …

A new tungsten-free γ–γ'Co–Al–Mo–Nb-based superalloy

SK Makineni, B Nithin, K Chattopadhyay - Scripta Materialia, 2015 - Elsevier
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 …

Creep properties of different γ′-strengthened Co-base superalloys

A Bauer, S Neumeier, F Pyczak, RF Singer… - Materials Science and …, 2012 - Elsevier
The influence of various alloying elements on the creep properties of polycrystalline Co-
base superalloys hardened by a ternary L12 compound, Co3 (Al, W)(γ′-phase), was …

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 …

Multicomponent γ'-strengthened Co-based superalloys with increased solvus temperatures and reduced mass densities

EA Lass, DJ Sauza, DC Dunand, DN Seidman - Acta Materialia, 2018 - Elsevier
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 …

On the diffusive phase transformation mechanism assisted by extended dislocations during creep of a single crystal CoNi-based superalloy

SK Makineni, A Kumar, M Lenz, P Kontis, T Meiners… - Acta Materialia, 2018 - Elsevier
We propose here a deformation-induced diffusive phase transformation mechanism
occurring during shearing of γ′ ordered phase in a γ/γ′ single crystalline CoNi-based …

Effects of Al and Ta on the high temperature oxidation of Ni-based superalloys

SJ Park, SM Seo, YS Yoo, HW Jeong, HJ Jang - Corrosion science, 2015 - Elsevier
The effects of Al and Ta on the high temperature oxidation of Ni–8Cr–9.5 Co–2.5 Mo–6W–(4–
5) Al–2Ti–(3–6) Ta–0.1 C–0.01 B (wt.%) superalloys were examined at 850° C and 1000° C …