Niobium Cast Superalloy:
As the international development trends, as in the following application of polycrystalline superalloy, and the development of a series of directional and single crystal Niobium alloy cast superalloy.
Niobium Iron-Based Superalloy:
Added singly or in combination Tungsten, Molybdenum, Niobium solid to solution strengthening. The main component of iron-based superalloys based solid solution strengthening for Fe-Ni-Cr austenitic matrix, can dissolve more solid-solution strengthening elements W, Mo and Nb, may be dissolved a certain amount of precipitation strengthening elements such as Al and Ti. The matrix γsatisfactory strength and corrosion resistance.
Niobium Nickel-based Superalloy.
Niobium Containing Low Segregated Superalloy:
From the analysis of thermodynamics, the relative position of the degree of alloy solidfication segregation depends on the liquids and solidus, that the alloy solidification segregation solidfication temperature interval of large seriously, and vice versa. Therefore, to reduce segregation during solidification of the alloy, an effective method is to compress the solidification temperature range.
Niobium Resistant Superalloy:
Hot corrosion problem caused by the gas turbine engine components for power generation for ships, aircraft, hovercraft, contaminated by atmosphere, salt air or fuel has constantly aroused great attention. K438 in China has good corrosion resistance to thermal and mechanical properties of the process, organizational stability. Depending on the conditions of 700 to 900° C can be used in a relatively harsh environment of the turbine blades and vanes. Especially for maritime, land use gas turbine blades. The alloy with a small margin casting process to produce leaves, and by chrome aluminum coating, after running the assessment, to improve the corrosion resistance of the blade has a good effect.
Niobium Powder Containing High Temperature Alloy.
As the international development trends, as in the following application of polycrystalline superalloy, and the development of a series of directional and single crystal Niobium alloy cast superalloy.
Niobium Iron-Based Superalloy:
Added singly or in combination Tungsten, Molybdenum, Niobium solid to solution strengthening. The main component of iron-based superalloys based solid solution strengthening for Fe-Ni-Cr austenitic matrix, can dissolve more solid-solution strengthening elements W, Mo and Nb, may be dissolved a certain amount of precipitation strengthening elements such as Al and Ti. The matrix γsatisfactory strength and corrosion resistance.
Niobium Nickel-based Superalloy.
Niobium Containing Low Segregated Superalloy:
From the analysis of thermodynamics, the relative position of the degree of alloy solidfication segregation depends on the liquids and solidus, that the alloy solidification segregation solidfication temperature interval of large seriously, and vice versa. Therefore, to reduce segregation during solidification of the alloy, an effective method is to compress the solidification temperature range.
Niobium Resistant Superalloy:
Hot corrosion problem caused by the gas turbine engine components for power generation for ships, aircraft, hovercraft, contaminated by atmosphere, salt air or fuel has constantly aroused great attention. K438 in China has good corrosion resistance to thermal and mechanical properties of the process, organizational stability. Depending on the conditions of 700 to 900° C can be used in a relatively harsh environment of the turbine blades and vanes. Especially for maritime, land use gas turbine blades. The alloy with a small margin casting process to produce leaves, and by chrome aluminum coating, after running the assessment, to improve the corrosion resistance of the blade has a good effect.
Niobium Powder Containing High Temperature Alloy.