Inconel ndi banja la austenitic nickel chromium based super alloys.
Ma aloyi a Inconel ndi zida zolimbana ndi oxidation corrion zomwe zimayenera kugwiritsidwa ntchito m'malo ovuta kwambiri omwe amakakamizidwa komanso
Kutentha. Kutentha, Inconel imapanga rhick, khola, passivating oxide layer kuteteza pamwamba kuti zisawonongedwenso. Inconel imasunga
mphamvu pa kutentha kwakukulu, kokongola kwa ntchito zotentha kwambiri zomwe aluminiyamu ndi chitsulo zingagonjetsedwe.
chifukwa cha ma vacancies a kristalo omwe amapangidwa ndi thermally.Kutentha kwamphamvu kwa Inconel kumapangidwa ndi yankho lolimba.
kulimbitsa kapena kuuma kwamvula, kutengera aloyi.
Inconel 718 ndi aloyi ya nickel-chromium-molybdenum yopangidwa kuti ikhale yolimbana ndi malo osiyanasiyana ochita dzimbiri, kupindika ndi kuphulika kwa ming'alu. Chitsulo cha faifi tambalachi chimawonetsanso zokolola zambiri, zolimba, komanso zophulika pakatentha kwambiri. Nickel alloy iyi imagwiritsidwa ntchito kuchokera ku kutentha kwa cryogenic mpaka kutumikila kwa nthawi yayitali pa 1200 ° F. Chimodzi mwazinthu zosiyanitsa za Inconel 718's ndikuwonjezera kwa niobium kulola kuuma kwa zaka zomwe zimalola kuti annealing ndi kuwotcherera popanda kuumitsa modzidzimutsa panthawi yotentha ndi yozizira. . Kuphatikizika kwa niobium kumachita ndi molybdenum kulimbitsa matrix a aloyi ndikupereka mphamvu yayikulu popanda kulimbitsa kutentha. Ma aloyi ena otchuka a nickel-chromium amaumitsidwa ndi zaka chifukwa chowonjezera aluminium ndi titaniyamu. Chitsulo cha faifi tambalachi chimapangidwa mosavuta ndipo chimatha kuwotcherera munjira yolimba kapena yamvula (zaka). Superalloy imeneyi imagwiritsidwa ntchito m'mafakitale osiyanasiyana monga zakuthambo, kukonza mankhwala, mainjiniya apanyanja, zida zowongolera kuwononga chilengedwe, ndi zida zanyukiliya.
Kanthu | Pafupifupi 600 | Inconel | Mtengo wa 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 | 6-10 | kupuma | ≤3 | kupuma | 7-11 | kupuma | 5~9 pa | ≥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 | - | - | - | - | - |