The following example shows experimental investigations of a graded LMD transition based on stainless steel AISI 316L and the nickel-based superalloy
Inconel 718 (figure 1).
Under the deal, Alcoa will supply advanced nickel-based superalloy
, titanium and aluminum components for a broad range of GE Aviation engine programs.
In May, leading aerospace manufacturer Alcoa broke ground on its $100 million aerospace expansion in La Porte, Ind., where it will produce cast nickel-based superalloy
jet engine parts.
Sub-layers made of nickel-based superalloy
(Inconel 738LC) were chosen in this research.
Jianxin, "Hot corrosion behavior of powder metallurgy Rene95 nickel-based superalloy
in molten NaCl-[Na.sub.2]S[O.sub.4] salts," Materials and Design, vol.
Inconel 718, a nickel-based superalloy
, retains a 220ksi (kilopound per square inch) tensile strength up to 900 degrees Fahrenheit.
Brazing of SiC to a wrought nickel-based superalloy
using CoFeNi(Si, B)CrTi filler metal.
INCONEL 740 is the first material to combine the strength capabilities of a nickel-based superalloy
with sufficient resistance to coal ash, eliminating the need for protective coatings.
Six specimens of 7 % mass fraction yttria-stabilized zirconia coating produced by EB-PVD on nickel-based superalloy
substrates have been measured for thermal conductivity.
PTI uses a nickel-based superalloy
. "By forming the body by MIM to the required final part thickness, significantly less machining is required," LaSalle says.
The first-stage nozzles of the 7EC turbine are made of durable FSX-414 cobalt-based alloy, while the second and third stages are made of GE's own GTD-222 nickel-based superalloy
. The latter material has superior temperature resistance and creep properties, thereby reducing the amount of cooling flow required by the second- and third-stage nozzles.
The 9%Ni steel is often welded with nickel-based superalloy
625 because of the similar thermal expansion and high toughness in cryogenic temperatures presented in these materials.