{"id":10461,"date":"2026-09-14T16:26:12","date_gmt":"2026-09-14T08:26:12","guid":{"rendered":"https:\/\/am-material.com\/?p=10461"},"modified":"2026-07-22T16:43:50","modified_gmt":"2026-07-22T08:43:50","slug":"feni50-soft-magnetic-powder-in-2026-expert-guide-to-powder-metallurgy-2","status":"publish","type":"post","link":"https:\/\/am-material.com\/fr\/news\/feni50-soft-magnetic-powder-in-2026-expert-guide-to-powder-metallurgy-2\/","title":{"rendered":"FeNi50 Soft Magnetic Powder in 2026: Expert Guide to Powder Metallurgy"},"content":{"rendered":"

R\u00e9ponse rapide<\/h2>\n\n\n\n

Poudre magn\u00e9tique douce FeNi50<\/strong> is the powder-metallurgy form of 50 percent nickel-iron permalloy, the alloy that occupies the practical middle ground of the Ni-Fe magnetic system: saturation induction of 1.5-1.6 T, roughly double that of high-nickel permalloys, combined with initial permeability of 5,000-10,000 and coercivity of 5-20 A\/m. Gas-atomized spherical powder is supplied in 15-45 um cuts for LPBF, 0-25 um for MIM, and insulated fractions for pressed powder cores, serving transformer laminations replacements, relay and solenoid cores, magnetic shielding, current sensors, and inductor cores at power and audio frequencies. Final magnetic performance requires a full hydrogen anneal after consolidation, which should be treated as an integral part of the manufacturing route.<\/p>\n\n\n\n

Propri\u00e9t\u00e9<\/th>Valeur<\/th><\/tr><\/thead>
Syst\u00e8me d'alliage<\/td>50Ni-50Fe permalloy (Alloy 4750 \/ 1J50 class)<\/td><\/tr>
Densit\u00e9<\/td>8.2 g\/cm3<\/td><\/tr>
Granulom\u00e9trie typique de la poudre (LPBF)<\/td>15 \u00e0 45 \u00b5m<\/td><\/tr>
Typical Powder Size (MIM\/cores)<\/td>0-25 um<\/td><\/tr>
Induction de la saturation<\/td>1.5-1.6 T<\/td><\/tr>
Initial Permeability<\/td>5,000-10,000<\/td><\/tr>
Coercivity (annealed)<\/td>5-20 A\/m<\/td><\/tr>
Temp\u00e9rature de Curie<\/td>~500 C<\/td><\/tr>
Avantage cl\u00e9<\/td>Best induction-permeability balance in the permalloy family<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Qu'est-ce que la poudre magn\u00e9tique douce FeNi50 et quels sont les avantages de ce mat\u00e9riau ?<\/h2>\n\n\n\n

Poudre magn\u00e9tique douce FeNi50<\/strong> appartient \u00e0 la poudre magn\u00e9tique douce<\/a> family and replicates the chemistry of the 50 percent nickel permalloys known commercially as Hipernik, Alloy 4750, or 1J50 in Chinese standards. The composition sits at a deliberate compromise point in the nickel-iron system: nickel content high enough to keep the alloy FCC, ductile, and magnetically soft, but low enough to preserve the high saturation induction that falls off steeply as nickel rises toward the 78-80 percent of molybdenum permalloy.<\/p>\n\n\n\n

In powder form, the alloy’s benefits for engineering programs include:<\/p>\n\n\n\n