Inconel ndi banja la austenitic nickel chromium super alloys.
Ma alloy a Inconel ndi zinthu zotsutsana ndi okosijeni zomwe zimagwiritsidwa ntchito bwino m'malo ovuta kwambiri omwe ali ndi kupanikizika komanso kupsinjika.
kutentha. Ikatenthedwa, Inconel imapanga rhick, yokhazikika, komanso yopanda mpweya woteteza pamwamba kuti zisaukiridwenso. Inconel imasunga
mphamvu pa kutentha kwakukulu, kokongola kugwiritsa ntchito kutentha kwakukulu komwe aluminiyamu ndi chitsulo zingagwe
chifukwa cha malo opanda kanthu a kristalo omwe amapangidwa ndi kutentha. Mphamvu ya kutentha kwambiri ya Inconel imapangidwa ndi yankho lolimba
kulimbitsa kapena kuuma kwa mvula, kutengera ndi aloyi.
Inconel 718 ndi aloyi ya nickel-chromium-molybdenum yopangidwa kuti isawonongeke ndi zinthu zambiri zowononga kwambiri, kuzizira kwa dzenje ndi ming'alu. Aloyi yachitsulo cha nickel iyi imasonyezanso mphamvu zambiri zokolola, kulimba, ndi kuphulika kwa nthaka pa kutentha kwakukulu. Aloyi ya nickel iyi imagwiritsidwa ntchito kuyambira kutentha kwa cryogenic mpaka kutentha kwa nthawi yayitali pa 1200° F. Chimodzi mwazinthu zodziwika bwino za kapangidwe ka Inconel 718 ndi kuwonjezera niobium kuti ilole kuuma kwa ukalamba komwe kumalola kuuma ndi kuwotcherera popanda kuuma mwadzidzidzi panthawi yotenthetsera ndi kuzizira. Kuwonjezera kwa niobium kumagwira ntchito ndi molybdenum kuti kuumitse matrix ya aloyi ndikupereka mphamvu zambiri popanda kutentha kowonjezera. Ma aloyi ena otchuka a nickel-chromium amauma chifukwa chowonjezera aluminiyamu ndi titaniyamu. Aloyi yachitsulo cha nickel iyi imapangidwa mosavuta ndipo imatha kuwotcherera mu mkhalidwe wouma wa annealed kapena wamvula (zaka). Superalloy iyi imagwiritsidwa ntchito m'mafakitale osiyanasiyana monga ndege, kukonza mankhwala, uinjiniya wa m'madzi, zida zowongolera kuipitsa mpweya, ndi ma reactor a nyukiliya.
| Chinthu | Inconel 600 | Inconel | Inconel 617 | Inconel | Inconel | Inconel | Inconel | |
| 601 | 690 | 718 | X750 | 825 | ||||
| C | ≤0.15 | ≤0.1 | 0.05-0.15 | ≤0.08 | ≤0.05 | ≤0.08 | ≤0.08 | ≤0.05 |
| Mn | ≤1 | ≤1.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤1 | ≤1 |
| Fe | 6 mpaka 10 | kupuma | ≤3 | kupuma | 7~11 | kupuma | 5~9 | ≥22 |
| P | ≤0.015 | ≤0.02 | ≤0.015 | – | – | – | – | – |
| S | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.015 | ≤0.01 | ≤0.01 | ≤0.03 |
| Si | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.35 | ≤0.5 | ≤0.5 |
| Cu | ≤0.5 | ≤1 | – | ≤0.3 | ≤0.5 | ≤0.3 | ≤0.5 | 1.5-3 |
| Ni | ≥7.2 | 58-63 | ≥44.5 | 50-55 | ≥58 | 50-55 | ≥70 | 38-46 |
| Co | – | – | 10~15 | ≤10 | – | ≤1 | ≤1 | – |
| Al | – | 1-1.7 | 0.8-1.5 | ≤0.8 | – | 0.2-0.8 | 0.4-1 | ≤0.2 |
| Ti | – | – | ≤0.6 | ≤1.15 | – | – | 2.25-2.75 | 0.6-1.2 |
| Cr | 14-17 | 21-25 | 20-24 | 17-21 | 27-31 | 17-21 | 14-17 | 19.5-23.5 |
| Nb+Ta | – | – | – | 4.75-5.5 | – | 4.75-5.5 | 0.7-1.2 | – |
| Mo | – | – | 8~10 | 2.8-3.3 | – | 2.8-3.3 | – | 2.5-3.5 |
| B | – | – | ≤0.006 | – | – | – | – | – |
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