Alloy 751 nickel-based high-temperature alloy vuam kev kho cua sov
Qhov kub kub alloys yog dab tsi? Kub-kub alloys yog tsim los ntawm chromium, molybdenum, cobalt, npib tsib xee, hlau, txhuas, tooj liab, titanium, tungsten, boron, cerium, zirconium thiab lwm yam khoom. Lawv muaj qhov kub thiab txias oxidation tsis kam, zoo heev kub tsis kam, corrosion kuj thiab nws muaj cov khoom zoo xws li qaug zog tsis kam, zoo tensile zog thiab tawg toughness. Nws tseem hu ua "super alloy". Nws yog ib hom khoom siv hlau uas tuaj yeem ua haujlwm nyob rau hauv ib puag ncig huab cua ntev. Yog li ntawd, nws yog dav siv nyob rau hauv aerospace, marine ships, petrochemical kev lag luam, nuclear kev lag luam thiab lub zog teb.
Cia peb rov qab mus rau lub ntsiab lus: Alloy 751
Alloy 751 yog austenitic nickel-based superalloy nrog oxidation zoo heev thiab corrosion kuj nyob rau hauv ntau yam corrosive tej yam kev mob, xws li dav hlau cav ib puag ncig thiab ntau lwm yam aerospace thiab tshuaj siv. Cov hlau muaj lub zog zoo heev thiab tawv tawv hauv qhov kub thiab txias xws li qis rau 2000F (1093C). Alloy 751 kuj muaj kev qaug zog zoo heev.
Qauv: Alloy 751
C(%): Tsawg dua lossis sib npaug rau 0.10
Si(%): Tsawg dua lossis sib npaug rau 0.01
Mn(%): Tsawg dua lossis sib npaug rau 1.00
Cr(%): 14.0~17.0
Ni(%): Ntau dua lossis sib npaug rau 70.0
Mo(%): ib
Co(%): ib
W(%): ib
Al(%): 0.90~ 1.50
Cu(%): Tsawg dua lossis sib npaug rau 0.50
Ti(%): 2.00~ 2.60
Fe(%): 5.00~ 9.00
Lwm tus (%): Nb {{0}}.70 ~ 1.20, Ss0.01, Nb 2.50 ~ 3.50
Alloy 751 qhov ntau thiab tsawg
1. Hlau txoj kab uas hla: txoj kab uas hla 0 08-12mm
2. Qws: txoj kab uas hla 1.0-300mm
3. Sawb (coil): 0 2-20mm TCK x 10-300mm W
4. Sheet: Me 0.7mm TCK x 1200mm W Loj
5. Cov kav dej, forgings thiab mechanical qhov chaw: customized
6. Vuam hlau: 0.8mm, 1.0mm, 1.2mm, 2.0mm, 2.4mm, 3.2mm, 3.8mm, 4.0 mm, lwm.
7. Vuam strip: 0 4-0.7mm TCK x 25-60mm W
Nta:
■ Lub zog tensile siab ntawm 600 degree (1110℉) kub
■ Siab creep qaug zog ntawm 820 degree (1510℉) kub
■ Muaj peev xwm antioxidant zoo ntawm 980 degree (1795℉) kub.
■ Cov khoom siv kho tshuab zoo heev nyob rau hauv qhov kub thiab txias
■ Zoo ua haujlwm rau siab thiab qis kub corrosion, muaj zog tiv thaiv kev ntxhov siab corrosion
■ Zoo weldability (tsis kam, fusion vuam)
Kev kho cua sov
1. Kev daws cov tshuaj annealing yog nqa tawm ntawm 980-1010 degree (1796-1850℉), sov so rau 0.5 teev, thiab txias sai sai.
2. Cov nag lossis daus yog ua los ntawm 700-780 degree (1292-1436℉), ua kom sov li 2-4 teev, thiab cua txias.
Alloy 751 muaj kev tiv thaiv corrosion zoo heev ntawm qhov kub thiab txias thiab muaj kev tiv thaiv kev ntxhov siab corrosion thiab siab oxidation tsis kam ntawm 980 degree (1800 degrees).
Alloy 751 muaj peev xwm ua kom zoo tshaj plaws thermoforming nyob rau hauv qhov kub thiab txias ntawm 1200-980 degree ({2}} degrees), ua raws li qhov txias txias. Nws yuav tsum tau quenched nrog dej los yog txias kom sai li sai tau.
