特殊用途镍合金
发布时间: 2020-07-13 10:53
合金200-镍200®-UNS N02200-Ni99,6-2.4060-Ni99,2-2.4066
合金201-镍201®-UNS N02201-2.4068-2.4061
合金205-镍205®-UNS N02205
合金233-镍233®-UNS N02233
合金 270-镍270®-UNS N02270-2.4050-Ni99,8
低合金镍
合金 211-镍211®-UNS N02211
合金301 -Duranickel301®-UNS N03301-2.4128
铜镍合金
合金400 -Monel400®-UNS N04400-2.4360-NiCu30Fe
合金R-405 -MonelR-405®-UNS N04405
合金 K500-蒙乃尔K-500®-UNS N0550-2.4375-NiCu30Al
特殊合金，包括软磁合金和形状记忆合金
特殊合金–说明
镍合金具有许多独特的性能，可用于多种特殊应用。此处列出的合金的特性与磁性和物体的形状有关，并随温度的变化而变化。
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磁性软镍合金 |
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坡莫合金 78.5Ni-21.5Fe |
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钼坡莫合金 78.5Ni-17.7Fe-3.8Mo |
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铬坡莫合金 78.5Ni-17.7Fe-3.8Cr |
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超级合金79Ni-15Fe-5Mo-0.5Mn |
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金属玻璃 40FE-40Ni-14P-6B |
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金属玻璃 40FE-38Ni-4Mo-18B |
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铁 37Fe-30Ni-25Co-8Cr |
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铁 37Fe-30Ni-25Co-8Cr |
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硬磁含镍合金 |
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铝 Fe-24Ni-13Al-3.5Cu |
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Alni铁32Ni-12Al-0.5Ti |
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铝镍铁Fe-17Ni-10Al-12Co-6Cu |
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铝镍钴 Fe-20Ni-10Al-13.5Co-6Cu-0.25Ti |
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镍钛形状记忆合金 |
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镍钛记忆合金镍钛 |
镍合金具有许多独特的性能，可用于多种特殊应用。此处列出的合金的特性与磁性和物体的形状有关，并随温度的变化而变化。
MAGNETICALLY SOFT NICKEL ALLOYS
In terms of magnetic properties, metals can be divided into five categories:
● Paramagnets
● Ferromagnets
● Ferrimagnets
● Antiferromagnets
● Antiferromagnets
The magnetic properties of metals are influenced by temperature. Among all metals only iron, nickel and cobalt show ferromagnetic properties at room temperature.
The rise of temperature causes ferromagnets to lose their magnetic susceptibility. When the temperature reaches a certain value, the ferromagnetic material becomes a paramagnetic one. This value is called the Curie Temperature of a metal.
The magnetic permeability of ferromagnetic metals depends on the intensity of the external magnetic field. When such a field is removed, ferromagnets still display residual magnetism. By means of this force, permanent magnets attract or repel other metals or magnets.
A magnetized ferromagnetic alloy still exhibits residual magnetism, which wends the same direction as the field did. Demagnetization requires an oppositely oriented field of a certain strength, called coercion. If this field is stronger than said strength, the alloy gets magnetized -directed the opposite way then the field.
Each remagnetization involves irreversible dissipation of energy that’s called hysteresis energy loss.
Magnetically soft nickel alloys – properties
● High initial permeability µ
● High max relative permeability
● Constant permeability in changing temperatures
● High saturation magnetostriction
● An immediate reaction to the magnetic field's change
● Low Curie Temperature
● High resistivity
● Low eddy-current loss in alternating flux
● Narrow hysteresis loop (magnetization – demagnetization loop)
● Low hysteresis-energy loss
Shortly put- magnetically soft alloys are easy to magnetize, demagnetize and remagnetize.
Nickel-containing magnetically soft alloys – applications
● Nickel-containing magnetically soft alloys are used extensively in a variety of applications, including:
● Audio-related transformers
● Magnetic amplifiers
● Transducers
● Radar pulse transformers
● Synchronous motors and torque motors
● Loading coils
● Radiofrequency shields (RF shields)
● Temperature compensators
Permalloy is a unique magnetically soft alloy. Its feature is an almost rectangular shape of the hysteresis loop and two remanence values.
Magnetically soft amorphous metals
Amorphous metals (metallic glass) are characterized by high resistance, following low hysteresis loss and the ability to work at high frequencies.
Nickel-containing, magnetically soft amorphous metals are:
● Metglas 40Fe-40Ni-14P-6B
● Metglas 40Fe-38Ni-4Mo-18B
Magnetically hard nickel-containing alloys
Magnetically hard alloys are used to produce permanent magnets that exhibit strong residual magnetism and aren’t easy to demagnetize and remagnetize.
Alnico alloys are used to craft permanent magnets.
In terms of magnetic properties, metals can be divided into five categories:
● Paramagnets
● Ferromagnets
● Ferrimagnets
● Antiferromagnets
● Antiferromagnets
The magnetic properties of metals are influenced by temperature. Among all metals only iron, nickel and cobalt show ferromagnetic properties at room temperature.
The rise of temperature causes ferromagnets to lose their magnetic susceptibility. When the temperature reaches a certain value, the ferromagnetic material becomes a paramagnetic one. This value is called the Curie Temperature of a metal.
The magnetic permeability of ferromagnetic metals depends on the intensity of the external magnetic field. When such a field is removed, ferromagnets still display residual magnetism. By means of this force, permanent magnets attract or repel other metals or magnets.
A magnetized ferromagnetic alloy still exhibits residual magnetism, which wends the same direction as the field did. Demagnetization requires an oppositely oriented field of a certain strength, called coercion. If this field is stronger than said strength, the alloy gets magnetized -directed the opposite way then the field.
Each remagnetization involves irreversible dissipation of energy that’s called hysteresis energy loss.
Magnetically soft nickel alloys – properties
● High initial permeability µ
● High max relative permeability
● Constant permeability in changing temperatures
● High saturation magnetostriction
● An immediate reaction to the magnetic field's change
● Low Curie Temperature
● High resistivity
● Low eddy-current loss in alternating flux
● Narrow hysteresis loop (magnetization – demagnetization loop)
● Low hysteresis-energy loss
Shortly put- magnetically soft alloys are easy to magnetize, demagnetize and remagnetize.
Nickel-containing magnetically soft alloys – applications
● Nickel-containing magnetically soft alloys are used extensively in a variety of applications, including:
● Audio-related transformers
● Magnetic amplifiers
● Transducers
● Radar pulse transformers
● Synchronous motors and torque motors
● Loading coils
● Radiofrequency shields (RF shields)
● Temperature compensators
Permalloy is a unique magnetically soft alloy. Its feature is an almost rectangular shape of the hysteresis loop and two remanence values.
Magnetically soft amorphous metals
Amorphous metals (metallic glass) are characterized by high resistance, following low hysteresis loss and the ability to work at high frequencies.
Nickel-containing, magnetically soft amorphous metals are:
● Metglas 40Fe-40Ni-14P-6B
● Metglas 40Fe-38Ni-4Mo-18B
Magnetically hard nickel-containing alloys
Magnetically hard alloys are used to produce permanent magnets that exhibit strong residual magnetism and aren’t easy to demagnetize and remagnetize.
Alnico alloys are used to craft permanent magnets.
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