Description
CoFe Alloy 1J22
1J22 is an iron-cobalt-vanadium soft magnetic alloy with high saturation magnetic induction intensity. Among the existing soft magnetic materials, the alloy has the highest saturation magnetic induction intensity (2.4T), high Curie point (980°C), and the largest saturation magnetostriction coefficient ( 60～100×10-6). Due to the high saturation magnetic induction, when making a motor with the same power, the volume can be greatly reduced, and when it is used as an electromagnet, it can generate a large attraction force under the same cross-sectional area. Due to the high Curie point, the alloy can work at a higher temperature where other soft magnetic materials have been completely demagnetized, and maintain good magnetic stability. Due to the large magnetostriction coefficient, it is extremely suitable as a magnetostrictive transducer, with high output energy and high working efficiency. The alloy has a low resistivity (0.27μΩ·m) and is not suitable for use at high frequencies. It is expensive, easy to oxidize, and has poor processability. Adding an appropriate amount of nickel or other elements can improve its processability.
Other names: 49КФ (Russia), Permendur (UK), Supermendur (USA), HiperCo50 (USA)
Approximate grade: AFK502
standard：GB/T 15001-1994
GB/T 15002-1994
Chemical composition:
Grade |
Chemical composition(%) |
|||||||||
C |
P |
S |
Mn |
Si |
Ni |
Cu |
V |
Co |
Fe |
|
Max |
||||||||||
1J22 |
0.04 |
0.02 |
0.02 |
0.03 |
0.03 |
0.5 |
0.20 |
0.80~1.20 |
49.0~51.0 |
Rest |
heat treatment
Cold-rolled strip samples: heat up to 850-900°C with the furnace, keep warm for 3-6 hours, cool to 750°C at a rate of 50°C/h, then cool to 300°C at a rate of 180-240°C/h and leave the furnace, annealing medium It is hydrogen gas with a dew point not higher than -40°C.
The sample taken from the forging billet: heat up to 1100°C ± 20°C with the furnace, hold for 3-6 hours, cool to 850°C at a rate of 50-100°C/h, hold for 3 hours, and then cool to 700°C at a rate of 30°C/h. Then cool at a rate of 200°C/h to 300°C and release from the furnace, and the annealing medium is hydrogen with a dew point not higher than -40°C.
For materials that require higher magnetic induction intensity, lower coercive force, and higher squareness ratio in a lower magnetic field: heat up to 850°C±10°C with the furnace, keep warm for 4 hours, and cool to 750°C at a rate of 50°C/h , hold for 3 hours, then cool to 300°C at a rate of 200°C/h and take out of the furnace, and start to apply a 1240-1600A/m DC magnetic field at the hold (750°C), and the annealing medium is hydrogen with a dew point not higher than -40°C.
Organizational structure:
The microstructure of the alloy is a single-phase solid solution of body-centered cubic lattice, and the γα phase transition occurs around 900-930°C. When the temperature is lower than 730°C, ordering occurs, forming a FeCo superstructure, and a disordered α phase transition It is an ordered α’ phase.
Characteristic as below：
-
1J22 cobalt-based soft magnetic gold, saturated magnetic flux density can reach 2.35T. It has a high Curie temperature (980 ℃) and magnetostriction coefficient (60 * 10-6) and other characteristics.Processing conditions and application:
-
1J22 is suitable for vibrating diaphragms, magnetostrictive transducers and buzzer elements for small size, light weight, large power spaceflight, aeronautic motors, electromagnet pole shoe power transformers, voltage and hearing aids.
Shanghai HY Industry Co., Ltd has international first-class material production equipment such as high temperature alloy isothermal forging production line, CONSARC vacuum melting furnace, VAR vacuum arc remelting furnace etc., with strong professional ability and highly responsible management team. We are a member of China Application of nuclear energy materials, Member of the International Council of the Aeronautical Sciences，China Electronic Materials Industry Association Magnetic Materials Branch. Years of experience in special alloy. When you have superalloy material inquiry, please contact us without hesitation. Shanghai HY Industry Co., Ltd is Corrosion & fatigue nickel alloy professional manufacturer,We will provide you with sincere and thoughtful service.
When you want to know more about our products, please contact us:
https://hynickelalloy.com
