Qhov sib txawv ntawm 200 thiab 205 npib tsib xee

1. Tshuaj lom neeg sib xyaw

Thawj qhov kev sib txawv ntawm lawv cov ntsiab lus, tshwj xeeb yog cov ntsiab lus tooj liab, uas tsav lawv cov yam ntxwv tshwj xeeb:

Lub ntsiab	Nickel 200 (raug)	Nickel 205 (Raug)
Npib tsib caug (ni)	99.6% yam tsawg kawg (lub ntsiab lus tseem ceeb)	54–58%
Tooj Liab (Cu)	0.25% ntau tshaj (Qw Impurity)	42-46% (loj alloying keeb)
Carbon (c)	0.10% Ntau	0.10% Ntau
Hlau (FE)	0.4% Ntau	0.4% Ntau
Manganese (mn)	0.35% siab tshaj plaws	0.35% siab tshaj plaws
Silicon (si)	0.35% siab tshaj plaws	0.35% siab tshaj plaws

Nickel 200: Lub siab-huv cov nickel alloy nrog npib tsib xee yog lub caij tseem ceeb (99.6% +). Tooj liab yog tam sim no tsuas yog ua tus menyuam yaus me.

Nickel 205: Lub npib tsib xee-tooj liab (Monel-zoo li, txawm hais tias muaj ze li sib npaug ntawm tsib xee thiab tooj, ua nws binary ni-cu alloy.

2. Cov Khoom Siv Neeg Kho Tshuab

Lawv cov lej sib txawv ua rau cov cwj pwm txawv zog:

Ntiag tug	Nickel 200 (anealed)	Nickel 205 (anealed)
Lub zog tensile	345-485 MPa (50-70 KSI)	480-620 mpa (70-90 ksi)
Tawm Zog (0.2% offset)	105-275 MPa (15-40 Ksi)	170-310 mpa (25-45 ksi)
Elongation (hauv 50 hli)	40–50%	30–40%
Hardness (Rockwell B)	40–60	60–80

Lub zog: Nickel 205 yog muaj zog dua (ntau dua lub zog thiab tawm lub zog ntawm cov khoom siv dag zog ntawm tooj liab hauv npib tsib xee.

Kev ua siab loj: Nickel 200 yog ntau dua ducast (siab dua elongation), ua rau nws yooj yim dua los ua cov duab ntawm cov qauv txias.

3. Corrosion Kuj

Ob qho alloys muab cov zoo corrosion tsis kam, tab sis lawv cov kev ua tau zoo sib txawv hauv ib puag ncig tshwj xeeb:

Nickel 200:

Zoo heev rau Alkalis Hydroxide), dej tshiab, chav dej, thiab tsis yog-oxidizing acids (piv txwv li hydrochloric acid ntawm tsawg kub).

Tsawg tiv taus oxidizing ib puag ncig (piv txwv li, nitric acid) thiab kev kub siab sulfur tebchaw.

Nickel 205:

Txhim kho kev tsis kam mus rau dej hiav txwv, ntsev tsuag tsuag, thiab acidic acid ntawm nruab nrab ntau) vim nws cov ntsiab lus tooj liab, uas txhim kho cov neeg nplua nuj nyob hauv chloride-nplua nuj tshaj tawm.

Zoo tsis kam mus rau pitting thiab crevice corrosion piv rau Nickel 200, tshwj xeeb tshaj yog hauv cov tub rog lossis kev lag luam nrog chlorides.

4. Kev ua haujlwm siab-kub

Nickel 200:

Nquag rau "graphitization" (tsim ntawm brittle cov pa roj carbon me me) thaum raug kub siab tshaj 315℃(600℃f) rau ncua sij hawm.

Haum rau kev kub-rau-nruab nrab kub (mus txog ~ 300 degree) hauv kev tsis muaj oxidizing.

Nickel 205:

Ntau ruaj khov ntawm kev nce qib kub (txog li ~ 425 Qib F) vim nws tus lej tooj liab-tooj liab, uas resusts thermal embrittlement zoo dua li npib dawb paug.

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5. Kev thov

Lawv cov khoom lag luam tshwj xeeb lub hom phiaj siv ntau yam sib txawv

Nickel 200:

Kev ua tshuaj lom neeg (tso tsheb hlau luam, kav dej rau alkalis).

Cheebtsam Roj teeb (alkaline roj teeb hluav taws xob).

Khoom noj khoom haus / kws khoom siv khoom noj (tawm tsam cov khoom noj acids).

Hluav Taws Xob Txuas Hluav Taws Xob (kev ua haujlwm siab).

Nickel 205:

Tubrog nkoj thiab ntug hiav txwv (ntug dej hiav txwv corrosion).

Roj thiab roj kev lag luam (downhole cov cuab yeej, li qub nyob rau hauv chloride-nplua nuj kua).

Muaj cov twj thiab cov khoom siv li qub ua kua qaub lossis cov ntsev ntsev.

Nickel 200 yog qhov siab-dawb-purity alyoy muaj nuj nqis rau ductility, thaum Nickel-Tooj-tooj liab muaj zog thiab zoo dua ib puag ncig thiab acidic ib puag ncig thiab acidic ib puag ncig thiab acidic ib puag ncig thiab acidic ib puag ncig thiab acidic ib puag ncig thiab acidic ib puag ncig thiab acidic ib puag ncig thiab acidic ib puag ncig. Lawv cov lus sau ua kom teev lawv cov khoom sib txawv thiab cov ntawv thov.