1. Hastelloy C276, C22, B-2, thiab Inconel 718 yog dab tsi, thiab dab tsi ua rau lawv haum rau cov ntawv thov kev ua haujlwm siab?
Teb:
Hastelloy C276: Ib qho nickel-molybdenum-chromium alloy uas muaj qhov tshwj xeeb tiv thaiv rau ntau qhov chaw tshuaj lom neeg, suav nrog cov muaj zog oxidizers thiab txo cov kua qaub. Zoo tagnrho rau kev ua tshuaj lom neeg, tswj kev ua qias tuaj, thiab ib puag ncig marine.
Hastelloy C22: Ib qho nickel-chromium- molybdenum alloy nrog zoo heev tiv taus oxidizing thiab txo cov kua qaub. Nws tsis tshua muaj kev ntxhov siab corrosion cracking piv rau lwm cov alloys, ua rau nws zoo meej rau cov tshuaj reactors.
Hastelloy B-2: Ib qho nickel-molybdenum alloy nrog zoo heev tiv thaiv hydrochloric thiab sulfuric acids, txawm nyob rau hauv txo tej yam kev mob. Nws yog siv nyob rau hauv ib puag ncig corrosive zoo li acid tuav hauv cov nroj tsuag tshuaj.
Inconel 718: Ib tug npib tsib xee-chromium- hlau alloy uas ua rau muaj zog thiab oxidation tsis kam ntawm qhov kub siab. Zoo tagnrho rau aerospace, roj turbines, thiab siab - kev siv kev ntxhov siab vim nws cov khoom siv tshwj xeeb.
2. Cov tshuaj muaj pes tsawg leeg ntawm Hastelloy C276, C22, B-2, thiab Inconel 718 yog dab tsi?
Teb:
| Alloy | Cov ntsiab lus tseem ceeb (%) |
|---|---|
| Hastelloy C276 | Ni 57, Mo 15–17, Cr 14–16, Fe 4–7, W 3–4 |
| Hastelloy C22 | Ni 52, Cr 22, Mo 13, Fe 4, Co Less than los sib npaug 2 |
| Hastelloy B-2 | Ni 65, Mo 28, Fe Tsawg dua lossis sib npaug 2, Cr Less dua lossis sib npaug rau 1, Co Less dua lossis sib npaug 1 |
| ib 718 | Ni 50–55, Cr 17–21, Fe 18, Nb 4.75–5.5, Ti 0.65–1.15 |
Txhua alloy yog ua tib zoo tsim rau superior corrosion kuj thiab lub zog nyob rau hauv huab mob.
3. Dab tsi yog cov khoom siv ntawm cov kab puag ncig no?
Teb:
Hastelloy C276: xyuas
Tensile zog: 720-980 MPa
Tawm Zog: 290-450 MPa
Elongation: 30-50%
Hardness (HRB): 85-95
Hastelloy C22:
Tensile zog: 730-1030 MPa
Tawm Zog: 250-480 MPa
Elongation: 30-50%
Hardness (HRB): 85-95
Hastelloy B-2:
Tensile zog: 620-760 MPa
Tawm Zog: 240-340 MPa
Elongation: 30-45%
Hardness (HRB): 80-90
Qauv Zauv: Inconel 718
Tensile zog: 1240-1380 MPa
Tawm Zog: 1030-1240 MPa
Elongation: 12-20%
Hardness (HRC): 35-42
Cov alloys no tau tsim tshwj xeeb los tswj qhov kub thiab txias, siab, thiab corrosive ib puag ncig.
4. Dab tsi yog cov khoom tiv thaiv corrosion ntawm Hastelloy C276, C22, B-2, thiab Inconel 718?
Teb:
Hastelloy C276: Kev tiv thaiv zoo heev rau oxidizing thiab txo cov kua qaub, suav nrog sulfuric acid, hydrochloric acid, thiab chlorides. Nws kuj tiv taus kev ntxhov siab corrosion cracking thiab pitting hauv seawater thiab aerospace ib puag ncig.
Hastelloy C22: Muaj kev tiv thaiv zoo rau pitting thiab crevice corrosion, tshwj xeeb tshaj yog nyob rau hauv oxidizing thiab txo cov acids xws li acetic acid, phosphoric acid, thiab seawater.
Hastelloy B-2: Tshwj xeeb tsim los rau ib puag ncig corrosive heev, muab kev ua haujlwm zoo rau hydrochloric acid thiab sulfuric acid ntawm ob qho tib si ambient thiab siab kub.
Inconel 718: Thaum tsis tshua muaj zog rau qee cov kua qaub, nws muaj kev tiv thaiv zoo rau oxidation thiab corrosion ntawm qhov kub siab, tshwj xeeb tshaj yog nyob rau hauv aerospace thiab turbine daim ntaub ntawv.
5. Dab tsi yog cov kev siv ntawm cov kab puag ncig no hauv kev lag luam?
Teb:
Hastelloy C276: Kev ua tshuaj lom neeg, cov cuab yeej tswj kev ua qias tuaj, cov kua qaub- cov cuab yeej tiv taus, kev tsim tshuaj, thiab ib puag ncig marine.
Hastelloy C22: Siv nyob rau hauv cov tshuaj reactors, tshav kub exchangers, tshuaj nroj tsuag, thiab khoom noj khoom haus cov khoom uas chloride kev nyuaj siab corrosion cracking yog ib qho kev txhawj xeeb.
Hastelloy B-2: Feem ntau siv nyob rau hauv cov kua qaub tuav systems, chemical processing, nuclear fuel reprocessing, and pharmaceutical industries.
Inconel 718: Aerospace daim ntawv thov xws li turbine hniav, foob pob ua ntxaij cav, roj turbines, fais fab nroj tsuag, thiab siab - cov qauv kev nyuaj siab.
