Inconel yog ib tsev neeg ntawm austenitic nickel chromium raws li super alloys.
Inconel alloys yog cov khoom siv tiv taus oxidation corrion uas zoo rau kev pabcuam hauv qhov chaw kub ntxhov uas raug kev nyuaj siab thiab
cua sov. Thaum cua sov, Inconel tsim ib txheej oxide rhick, ruaj khov, passivating tiv thaiv qhov chaw ntawm kev tawm tsam ntxiv. Inconel khaws cia
lub zog hla ntau qhov kub thiab txias, zoo rau cov ntawv thov kub siab uas txhuas thiab hlau yuav succumb rau creap
vim yog qhov tshwm sim ntawm cov khoom siv lead ua los ntawm cua sov. Inconel lub zog kub siab yog tsim los ntawm cov kua khov
kev ua kom muaj zog lossis nag lossis daus hardening, nyob ntawm seb cov hlau.
Inconel 718 yog ib qho hlau nickel-chromium-molybdenum uas tsim los tiv taus ntau yam kev kub ntxhov, kev xeb pitting thiab crevice. Cov hlau nickel no kuj qhia txog cov khoom muaj txiaj ntsig zoo heev, tensile, thiab creep-rupture ntawm qhov kub siab. Cov hlau nickel no siv tau los ntawm qhov kub cryogenic mus txog rau kev pabcuam ntev ntawm 1200 ° F. Ib qho ntawm cov yam ntxwv sib txawv ntawm Inconel 718 cov khoom yog ntxiv niobium kom tso cai rau kev laus tawv uas tso cai rau annealing thiab vuam yam tsis muaj kev tawv tawv thaum lub sijhawm cua sov thiab txias. Kev ntxiv niobium ua haujlwm nrog molybdenum los ua kom cov hlau matrix tawv thiab muab lub zog siab yam tsis muaj kev kho cua sov. Lwm cov hlau nickel-chromium nrov yog hnub nyoog tawv los ntawm kev ntxiv txhuas thiab titanium. Cov hlau nickel no tau yooj yim tsim thiab tuaj yeem vuam hauv qhov annealed lossis nag lossis daus (hnub nyoog) tawv. Cov superalloy no siv rau hauv ntau yam lag luam xws li aerospace, kev ua tshuaj lom neeg, kev tsim kho marine, cov khoom siv tswj kev ua qias tuaj, thiab cov chaw tsim hluav taws xob nuclear.
| Khoom | 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 | 6~10 | so | ≤3 | so | 7~11 | so | 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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