Alloy porofayili ani izini lɔyɔrɔ
Inconel 625, min fana lɔnna ko Nikɛli Alloy 625 walima UNS N06625, o ye fɛn barikaman ye-suguli–nakɛli -molibɛnti-nibiyɔmu min labɛnna baara minw na koroziyɔn ni funteni dan be ɲɔgɔn fɛ. A be fanga, yɛlɛmani ani oksidi basigi ka bɔ kriyozeni cogoyaw la fɔɔ ka taga se degere 1000 ma (1832 F).
O sɛrɛkili be kɛ ka caya baji kɔnɔ minanw na, kemikalifɛnw dilanyɔrɔw la, nɔgɔw kɔlɔsili yɔrɔw la, nukeleyɛri yɔrɔw la, ani awiyɔn motɛriw ka pɔtɔpɔtɔw la-baarakɛyɔrɔw la yɔrɔ minw na boonw tilenninya n’u ka nɔgɔw kɔlɔsili ka kan ka baara kɛ ɲɔgɔn fɛ. A ka Ni-Cr-Mo-Nb balansi be yɛrɛ-kɛnɛyali oksidi filimu dɔ dilan ani a be yɔrɔw ka kɛlɛ bali hali ni asidi ni kulori-ba be yen.

Simi dilan cogo ani jateminɛ kɛcogo .
| Fɛn | % Sugu wɛrɛw | Ciya |
|---|---|---|
| Nikɛli (Ni) | min ka bon ni 58.0 ye wala min be bɛn n’o ye. | Basi matirikisi; nɔgɔ ani funteni basiginin |
| Kromiyɔmu (Cr) | 20.0–23.0 | Oksidi min be se ka kɛ ka oksidi kɔlɔsi . |
| Molibdɛn (Mo) | 8.0–10.0 | A be dingɛw ni yɔrɔw nɔgɔli kɛlɛ |
| Niobium (Cb + T) | 3.15–4.15 | Fanga barikamanw; a be yɛlɛmani bali |
| Nɛgɛ (Fe) | A man kan ka kɛ 5,0 ye wala min be bɛn n’o ye. | A be dilan cogoyaw fisaya |
| Karibɔni (C) | A man kan ka kɛ 0,10 ye wala min be bɛn 0,10 ma. | Karibidi dilanni kɔlɔsi |
| Mn / Si / S . | A ka dɔgɔ ni 0,5 / 0,5 / 0,015 ye. | Aw ka to ka saniya ani ka nɔgɔ bɔ . |
Molybdenum ni niobium ka nɔɔ min be ɲɔgɔn kan, o be fanga caaman bɔ k’a sɔrɔ sanji ma yɛlɛma, o be se ka kɛ sababu ye ka fɛnw dilan nɔgɔman na ani ka baara kɛ cogo basiginin na wagatijan kɔnɔ. O mikrostructure be suman ɲumanw mara ani a be sumanw -} dansali bali.
Masiniw ka lannaya min be sɔrɔ Temperature ani stress kɔnɔ .
| Marafɛn | Mɛtiri (min) | Masacɛ (miniti) | Cogofɔli |
|---|---|---|---|
| Fanga min be se ka yɛlɛma | MPa 827 | 120 ksi | A be tilenninya mara degere 870 la . |
| Yeeld ka fanga (0,2 %) | MPa 414 | 60 ksi | Sɔsɔli minw be kɛ doni kɔrɔ . |
| janya | A ka ca ni 30 % ye walima a ka kan n’o ye. | A ka ca ni 30 % ye walima a be bɛn . | A ka ɲi ka kɛ ko a ka ɲi ka tɛmɛ yɔrɔ bɛɛ kan. |
| cɛjugu | A ka dɔgɔ ni 95 HRB ye wala a ka kan n’o ye . | A ka dɔgɔ ni 95 HRB ye wala a ka kan n’o ye . | A be se ka kɛ ka kɛɲɛ ni ɲɔgɔn ye ani a be se ka kɛ cogo min na . |
Sikili baara la, Inconel 625 be sɛgɛsɛgɛri fanga ni dimensiyɔn basigi ani a be tunu oksidi kɔlɔsili la.
Dilancogo ani funteni furakɛli
Pipew ni tubow be dilan ni funteni bɔli ye wala ni nɛnɛ ye ani o kɔ, u be furakisɛ min be yɛlɛma degere 1090–1150 la (1995–2100 F) o kɔfɛ, u be ban joona joona walisa ka koroziyɔn kɛlɛ. Sow suguw be bɔ TIG wala pilasima baarakɛcogo fɛ gazi min tɛ yɛlɛma.
A be se ka kɛ ko a be kogow ka kelenya mara, k’a sɔrɔ a be se ka mɔgɔw minɛ ani k’u yɛlɛma tugun. Dilanni ni sɛgɛsɛgɛri be bɛn ni .ASTM B444, B705, ani B704 .sariyaw lo.
Koroziyɔn kɛlɛli kunnafoni jɛnsɛyɔrɔw bɛɛ la
O nɛgɛ ka baara fila-nikɛli-kɔrɔmu oksidi filimu ka oksidi cogoyaw ani molibdɛni-niyobiyɔmu fanga ka laminiw dɔgɔya-b’a to a be kemikali basigi kosɔbɛ:
- Kɔgɔji jii n’a ka kuloridiw:A be se ka yɔrɔw, yɔrɔw, ani stress-koroziyɔn farali kɛlɛ.
- Asidi minw be oksidi (nitiriki, kɔrɔmi):Kɔrɔmu be oksidi nɔrɔli mara funteni tuma na.
- Asidiw (hydrochloric, fɔsifɔri):Molibdɛni be yɔrɔ dɔ ka kɛlɛ bali.
- Gazi min be bɔ (H€):A be se ka yɛlɛma ka ɲɛsin sulfide stress crack ma ka ɲɛsin petoroli ni gazi baara ma.
- Okisidasiyɔn funteniba-:A be se ka yɛlɛma ani ka nɛgɛ tunu fɔɔ ka se degere 1000 ma .
Dimensiyɔn ni fɛɛn min be di mɔgɔw ma, o be se ka kɛ .
| Sugu | Diamɛtiri kɔfɛ | Kogo bonya | Janya | Kɛrɛnkɛrɛnnin |
|---|---|---|---|---|
| Pipe ɲuman | milimɛtiri 6–610 | milimɛtiri 1–50 | 12 m . | ASME B444 / ASME SB444 |
| Tuyo soudé | 25–1200 mm | 1,5–60 mm | 12 m . | ASME B705 / ASME SB705 |
| Tube (Kunnafoni / Minɛn) | 6–76 mm | 0,8–10 milimɛtiri | Bobine / Tilennin | ASTM B704 / ASME SB704 |
Tight-tolerance laban be sɔrɔ minɛnw ni funteni- yɛlɛmani lajɛnbaw kama minw ka kan ka kɛ ni yɔrɔ tigitigi ye ani yɔrɔ min be se ka yɛlɛma.
Kɔrɔbɔli, seereyali ani ɲumanya sɛgɛsɛgɛli
Fɛɛnw bɛɛ sɛgɛsɛgɛra .ASTM B829tilenninya ni dimensiyɔn tiɲɛni kama min tɛ-tiɲɛni ye.
Routine sɛgɛsɛgɛliw ye hydrostatique walima ultrasonic sɛgɛsɛgɛli, PMI sɛgɛsɛgɛli ka ɲɛsin nikɛli hakɛ ma, ani sɛgɛsɛgɛli sɛgɛsɛgɛli (ASTM G28 Fɛɛrɛ A/C).
Octal Pipe be minanw di ni .10204 3.1 / 3.2 MTC, ka tugu ɲɔgɔn kɔ, ani sabanan-posisiyɔn sugandili (BV, SGS, TUV).
Lizini baarakɛcogo ani poroze dɛmɛ .
Inconel 625 be baara kɛ ni fɛnw ye minw kɔrɔtanin lo kosɔbɛ, i n’a fɔ baji daa la tiyow minw be sɔrɔ kuloridi jii la, sanfɛla fɛnw, nukeleyɛri baarakɛminɛnw, ji bɔyɔrɔw ani nɔgɔw kɛlɛlanw.
Octal Pipe be fɛɛrɛw di minw be se ka mɔgɔw dɛmɛ ka baara kɛ ni lɔnniya ye, NDE ka koow labɛnnin lo ani sɛbɛw be sɔrɔ fɛɛrɛw la minw labɛnna EPC ani kuran porozew kama. Tagabolo kɔlɔsili bɛnnin b'a to mansinw ni nɔgɔw be se ka segi ka kɛ funteni yɔrɔ bɛɛ la.
Ɲiningali

Q1: N’ ka kan ka sariya juman lo yira Alloy 625 tip ni tube la?
Q2: Yala UNS N06625 (Alloy 625) be se ka kɛ baara ye min be kɛ ni mɔgɔw ye (H2S) wa?
Q3: N’ ka ɲi ka mun lo ɲini walisa ka Inconel 625 ka ɲumanya sɛgɛsɛgɛ ka sɔrɔ k’a san?
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