Incoloy028 Chemical Composition Alloy % Nickel Chromium Molybdenum Niobium Tantalum Iron Aluminum Titanium Carbon Manganese Silicon Copper Phosphorus Sulfur
Incoloy028 Product Size Range: Diameter 6-500mm, Length 0.5-30m;
Incoloy028 Product Size Range: Thickness 0.5-80mm, length 1-6m, width 0.5-3m
Incoloy028 product size range: outer diameter 6-530mm, wall thickness 0.5-50mm, length 1-12m;
Incoloy028 product shape: forgings, bars, plates, strips, rings, Wire, flange, etc. can be produced according to customer requirements

Incoloy028 Use Environment:
In many areas of civil industry, the component materials in service are in a corrosive environment at high temperatures. In order to meet the needs of the market, the series Incoloy028 is classified according to the environment in which the material is used.
1. Incoloy028 Master Alloy Series
2, Corrosion-resistant Incoloy028 Plates, rods, wires, strips, tubes and forgings
3. High-strength, corrosion-resistant Incoloy028 bars, Spring wire, welding wire, plate, strip, forging 4
, glass corrosion resistance series products
5, environmental corrosion resistance, hard surface wear resistance Incoloy028 series
6, Special precision casting parts (blades, booster turbines, turbine rotors, guides, instrument joints)
7, centrifuges for glass cotton production, high-temperature shafts and accessories 8, cobalt-based alloy heat-resistant pads and slide rails
for billet heating furnaces 9, valve seats
10. Casting "U" shaped resistance belt
11, centrifugal cast pipe series
12, nano material series 13
, Light specific gravity and high temperature structural materials
14, functional materials (expansion alloys, high temperature and high elasticity alloys, constant elastic alloy series)
15, biomedical materials series products
16, Electronic engineering target Incoloy028 series products
17, power unit nozzle Incoloy028 series products
18, Stellite alloy wear plate
19. Ultra-high temperature oxidation and corrosion resistant furnace rollers and radiant tubes.

Incoloy028 Improves StrengthIncoloy028 Solution Strengthening:
Incoloy028 adds elements (chromium, tungsten, molybdenum, etc.) that are different from the atomic size of the matrix metal to cause the distortion of the matrix metal. Elements (such as cobalt) that can reduce the stacking fault energy of the alloy matrix and elements (tungsten, molybdenum, etc.) that can slow down the diffusion rate of the matrix elements are added to strengthen the matrix.

Incoloy028 precipitation strengthening
Through aging treatment, the second phase (γ', γ", carbide, etc.) is precipitated from the supersaturated solid solution to strengthen the alloy. The γ' phase is the same as the matrix, both of which are face-centered cubic structures, and the lattice constants are similar to those of the matrix and are co-lattice with the crystal, so the γ phase can be evenly precipitated in the form of fine particles in the matrix, which hinders the dislocation movement and produces a significant strengthening effect. The γ' phase is an A3B type intermetallic compound, A stands for nickel, cobalt, B stands for aluminum, titanium, niobium, tantalum, vanadium, tungsten, and chromium, molybdenum, and iron can be both A and B. The typical γ' phase in nickel-based alloys is Ni3(Al,Ti). The strengthening effect of the γ' phase can be enhanced by Incoloy028 in the following ways:
(1) increasing the number of γ' phases;
(2) the γ phase has an appropriate mismatch degree with the matrix to obtain the strengthening effect of co-lattice distortion,
and (3) the addition of niobium, tantalum and other elements to increase the reversed-phase domain energy of the γ' phase to improve its ability to resist dislocation cleavage