Materials for Metal 3D Printing
Nickel Alloys
Features
Nickel alloys are the nickel-base alloys. While austenitic stainless steels contain only 8-15% of nickel, or martensitic stainless steels contain only 4-9% of nickel, nickel alloys contain 40% or more of nickel which is similar to Inconel.
There are two types of nickel-base alloys, solid-solution strengthened alloy and γ’precipitation strengthened alloy. Nickel alloys are the former one which has low strength at high temperatures. Hot-working or cold-working work well to make them into board shapes or tube shapes. Also great for the secondary processings such as sheet metal processing or welding.
As it contains more nickel, it has a great corrosion resistance which does not require corrosion control treatment.
It can also maintain the strength and the oxidation resistance at high temperatures up to 1200℃.
Nickel alloys obtain the high-temperature strength by solid solution strengthening using Mo.
Composition
(in %)
| Elements | Ni | Cr | Mo | W | Fe | C | Si | Co |
|---|---|---|---|---|---|---|---|---|
| Regular material (Representative Values) |
47 | 22 | 9 | 0.6 | 18.5 | <0.15 | <1 | |
| Mn | S | P | B | Se | Cu | Al | Ti | |
| Elements | Ni | Cr | Mo | W | Fe | C | Si | Co |
| Powder material (Representative Values) |
Bal | 20.5～23.0 | 8.0～10.0 | 0.2～1.0 | 17.0～20.0 | ≦0.1 | ≦1.0 | 0.5～2.5 |
| Mn | S | P | B | Se | Cu | Al | Ti | |
| ≦1.0 | ≦0.03 | ≦0.04 | ≦0.01 | ≦0.005 | ≦0.5 | ≦0.5 | ≦0.15 |
Mechanical Properties
| Regular material | After printing | (Reference Values) | AMS 2773 Solution heat treatment:： 1177℃x1hr (Reference Values) |
|
|---|---|---|---|---|
| Tensile Strength[MPa] | 550～900 | Horizontal direction (XY direction) |
840±40 | 730±40 |
| Vertical direction (Z direction) |
720±40 | 690±40 | ||
| Yield strength Rp0.2[MPa] | 790 or less | Horizontal direction (XY direction) |
675±50 | 330±50 |
| Vertical direction (Z direction) |
570±50 | 330±50 | ||
| Elastic Modulus[GPa] | 17～22 [ ×104 N／mm2 ] |
Horizontal direction (XY direction) |
195±20 | 200±20 |
| Vertical direction (Z direction) |
175±20 | 190±20 | ||
| Elongation | 45 or less | Horizontal direction (XY direction) |
29±8 | 45±6 |
| Vertical direction (Z direction) |
39±8 | 52±6 | ||
| Hardness | 260 or less | Horizontal direction (XY direction) |
ー | 180 |
| Surface Roughness (Ra) [μm] | ー | After printing | ー | |
| After blasting | 5±2 | |||
Applications
Gas turbine parts for aerospace industries, Industrial furnaces, Petrochemical furnaces
Related Information
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Toray Precision is a pioneer in precision micromachining technology.
Since the founding of Toray Precision Co., Ltd. in 1955, we have been contributing to the synthetic fiber industries worldwide, by making spinnerets which is a key technology for synthetic fiber manufacturing.
Our experiences and technologies obtained through our history in the precision micromachining field are widely used in various industries nowadays, including semiconductor, measurement/inspection, aerospace, and medical instruments.