Nickel Permalloys
01
Description
Recently, the company has been actively implementing new technical solutions for gas atomizing, which significantly improve the morphology of particles, reduce the number of satellites, and increase the fluidity of powders and the quality of weld coatings.
Atomized powders produced by JSC POLEMA are classified into two groups: powders for coatings and structural powders.
The first group includes over 200 types of powders for coatings using various methods, including self-fluxing nickel, iron, and copper alloys, tool steels, high-carbon and low-carbon steels and alloys, corrosion-resistant and heat-resistant steels and alloys, as well as tin- and zinc-based composite powders and alloys.
The variety of available powders for coatings, used in high-speed, detonation, gas-flame, and plasma spraying, gas-powder, plasma, induction, and laser welding, allows to solve specific problems of surface hardening and effective protection against wear and corrosion of machines and equipment parts operating under elevated temperatures, high mechanical stress, and with abrasive substances and in aggressive environments.
The second group includes structural powders, such as pressed powders of pure metals (chromium, molybdenum, tungsten, nickel, and titanium), copper-based alloys (bronze and brass), stainless steels, special alloys with high magnetic permeability (permalloys), and materials for shot jet processing of parts (tool steels).
Powders of this group are used for making sheet rolled products, bars, and non-ferrous and refractory metal forgings, tools, sintered and deformed parts, composite materials used in electrical engineering, electronics, tool engineering, machine engineering, aerospace industry, nuclear power engineering, vehicles, filters, gas absorbers, and other engineering areas.
02
specifications
Ni-based magnetic soft alloys doped with molybdenum known as super permalloys are characterized by a very high magnetic permeability. Light magnetizing of these alloys in weak fields is due to the fact that they have almost no magnetic anisotropy or magnetostriction. Molybdenum increases resistivity and initial magnetic permeability of permalloy alloys and reduces their sensitivity to mechanical deformation. Due to use of the purest charge materials and special care in carrying out the heat treatment, it's super permalloys which allow to achieve the highest magnetic permeability among known magnetic soft materials.
Applications:
--PM-made magnetic elements – cores with the highest magnetic permeability for equipping measuring and radio engineering devices.
Inert gas-atomized spherical powder of molybdenum permalloy with the particle size of the main cut of -100 microns (below 100 microns) without additional screening and annealing is used, for example, in the production of a composite magnetic material with the addition of dielectric insulation. In this case, powders with additives of insulation and plasticizer are pressed in rigid dies under high pressure, and then the semi-finished products are sintered in a vacuum or a protective atmosphere.
Applications:
--PM-made magnetic elements – cores with the highest magnetic permeability for equipping measuring and radio engineering devices.
Inert gas-atomized spherical powder of molybdenum permalloy with the particle size of the main cut of -100 microns (below 100 microns) without additional screening and annealing is used, for example, in the production of a composite magnetic material with the addition of dielectric insulation. In this case, powders with additives of insulation and plasticizer are pressed in rigid dies under high pressure, and then the semi-finished products are sintered in a vacuum or a protective atmosphere.
03
advantages
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Profound production experience
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Strict quality control of all produced materials
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In-house research laboratory
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Flexible discount system
04
Product names
Below are examples of product names:
AP-81Ni3Mo;
AP-80Ni1MoМ;
AP-80Ni15Mo
You can contact our sales managers for more details at:
export_polema@metholding.com,
tel.: +7(4872)25-06-76.
AP-81Ni3Mo;
AP-80Ni1MoМ;
AP-80Ni15Mo
You can contact our sales managers for more details at:
export_polema@metholding.com,
tel.: +7(4872)25-06-76.
05
chemical composition
| Name | Nominal composition, % | Impurities, %, max | Bulk density, g/ccm | Flow rate, sec/50g | ||||||
| Ni | Mo | Mn | Fe | C | Si | S | O | |||
| AP-81Ni3Mo | 81 | 2.7 | 0.9 | bal. | 0.05 | 0.1 | 0.02 | 0.06 | ≥4.6 | ≤25 |
| AP-80Ni12Mo | 80 | 11.7 | 0.9 | bal. | 0.05 | 0.1 | 0.02 | 0.06 | ≥4.6 | ≤25 |
| AP-80Ni15Mo | 80 | 15 | 0.9 | bal. | 0.05 | 0.1 | 0.02 | 0.06 | ≥4.6 | ≤25 |
06
miscellaneous
You can contact our sales managers for more details at:
export_polema@metholding.com,
tel.: +7(4872)25-06-76.
export_polema@metholding.com,
tel.: +7(4872)25-06-76.
07
Application areas