Njirimara magnetik nke ígwè nkedo isi awọ dịgasị iche iche, site na ikike dị ala na ike mmanye dị elu ruo n'ike dị elu na ike mmanye dị ala. Mgbanwe ndị a dabere na microstructure nke ígwè nkedo isi awọ. Ịgbakwunye ihe ndị na-emepụta ihe iji nweta ihe ndọta achọrọ na-enweta site n'ịgbanwe nhazi nke isi awọihe nkedo ígwè.
| Njirimara magnetik nke Ígwè nkedo isi awọ | |||||||
| Koodu isi awọ | Ngwakọta kemịkalụ (%) | ||||||
| C | Si | Mn | S | P | Ni | Cr | |
| A | 3.12 | 2.22 | 0.67 | 0.067 | 0.13 | 00.03 | 0.04 |
| B | 3.30 | 2.04 | 0.52 | 0.065 | 1.03 | 0.34 | 0.25 |
| C | 3.34 | 0.83 - 0.91 | 0.20 - 0.33 | 0.021 - 0.038 | 0.025 - 0.048 | 0.04 | 00.02 |
| Njirimara magnetik | A | B | C | ||||
| Pearlite | Ferrite | Pearlite | Ferrite | Pearlite | Ferrite | ||
| Carbon Carbon w(%) | 0.70 | 0.06 | 0.77 | 0.11 | 0.88 | / | |
| Mkpebi / T | 0,413 | 0,435 | 0,492 | 0,439 | 0,5215 | 0,6185 | |
| Ike mmanye / A•m-1 | 557 | 199 | 716 | 279 | 637 | 199 | |
| Ọnwụ Hysteresis / J•m-3•Hz-1 (B=1T) | 2696 | -696 | 2729 | 1193 | 2645 | 938 | |
| Ike Igwe Ọdụdọ / kA•m-1 (B=1T) | 15.9 | -5.9 | 8.7 | 8.0 | 6.2 | 4.4 | |
| Oke. Ike ndọta / μH•m-1 | 396 | 1960 | 353 | 955 | 400 | 1703 | |
| Ike Ubi Igwe Ọdụdọ mgbe Max. Ike ndọta / A•m-1 | 637 | 199 | 1035 | 318 | 1114 | 239 | |
| Resistivity / μΩ•m | 0.73 | 0.71 | 0.77 | 0.75 | 0.42 | 0.37 | |
Ferrite nwere ikike ndọta dị elu na ọnwụ hysteresis dị ala; pearlite bụ ihe dị iche, ọ nwere ikike ndọta dị ala na nnukwu ọnwụ hysteresis. A na-etolite Pearlite ka ọ bụrụ ferrite site n'ịkwụsị ọgwụgwọ okpomọkụ, nke nwere ike ịbawanye ike ndọta ugboro anọ. Ịba ụba ọka ferrite nwere ike ibelata mfu hysteresis. Ọnụnọ nke cimentite ga-ebelata njupụta magnetik, permeability na remanence, ebe ọ na-abawanye permeability na hysteresis ọnwụ. Ọnụnọ nke graphite na-enweghị isi ga-ebelata nkwụsị ahụ. Mgbanwe site na graphite A-ụdị (graphite flake nke na-ekesa n'otu n'otu na-enweghị ntụzịaka) gaa na ụdị D-graphite (graphite mara mma nke nwere nkesa na-abụghị nke n'etiti dendrites) nwere ike ịbawanye nnabata magnet na ike mmanye. .
Tupu iru okpomọkụ na-abụghị magnetik dị oke egwu, ịrị elu okpomọkụ na-abawanye nke ukwuu ikike ndọta nke nkedo isi awọ. Ebe Curie nke igwe dị ọcha bụ mgbanwe mgbanwe α-γ nke 770°C. Mgbe oke pasentị nke silicon bụ 5%, ebe Curie ga-eru 730°C. Okpomọkụ Curie nke cimentite na-enweghị silicon bụ 205-220 Celsius.
Ọdịdị matriks nke akara ugo isi awọ nke a na-ejikarị eme ihe bụ pearlite, na ikike kachasị ha dị n'etiti 309-400 μH/m.
Oge nzipu: Eprel 17-2021