Qhov sib txawv tseem ceeb ntawm 5083 H32 thiab H321 nyob rau hauv lawv txoj kev ua thiab corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv marine ib puag ncig. Ob leeg yog txawv ntawm AA 5083 alloy, nrog tib cov tshuaj muaj pes tsawg leeg tab sis txawv kev kho cua sov thiab ntawv pov thawj rau corrosion kuj.
5083 H32:
Kev ua haujlwm: Txias ua hauj lwm ( lim-hardened) mus txog kwv yees li ib lub hlis twg - lub xeev nyuaj, ua raws li ntuj los yog dag dag los yog stabilization.
Corrosion Resistance: Zoo heev kev tiv thaiv corrosion, tab sis tsis dhau qhov kev sim tshwj xeeb rau intergranular los yog exfoliation corrosion, uas ua rau nws tsis haum rau marine ib puag ncig.
Mechanical Properties:
Pov thawj (Yield) Kev ntxhov siab: Ntau dua lossis sib npaug li 215 MPa
Tensile zog: 305-380 MPa
Elongation ntawm Break: 9.8% (tus qauv)
Brinell Hardness: 89 HB
Tej kev siv: Siv nyob rau hauv tsis yog - marine chaw xws li railcars, lub cev tsheb, lub nkoj siab, thiab cov vaj huam sib luag.
5083 H321:
Kev ua haujlwm: Zoo ib yam li H32 tab sis nrog rau qhov qis dua - kub thermal stabilization theem (tsawg dua lossis sib npaug li 66 degree) uas txhim kho cov khoom siv kho tshuab thiab txo cov kev ntxhov siab seem. Qhov npau taws no tshwj xeeb yog tsim rau marine- cov ntawv thov qib.
Corrosion Resistance: Muaj ntawv pov thawj kom dhau qhov kev ntsuam xyuas kev sib tshuam thiab exfoliation corrosion raws li ASTM B928, ua kom muaj kev ua tau zoo ntev - lub sijhawm ua haujlwm nyob rau hauv marine ib puag ncig, xws li hull plating, decks, thiab offshore qauv.
Mechanical Properties:
Pov thawj (Yield) Kev ntxhov siab: Ntau dua lossis sib npaug li 215 MPa
Tensile zog: 305-385 MPa
Elongation ntawm Break: 13% (tus qauv)
Brinell Hardness: 89 HB
Tej kev siv: Marine hull plating, yacht thiab nkoj decks, cav pedestals, offshore structures, thiab lwm yam tseem ceeb marine daim ntaub ntawv uas yuav tsum tau ntawv pov thawj corrosion kuj.
Qhov txawv tseem ceeb:
Corrosion Resistance: H32 muab kev tiv thaiv corrosion zoo nyob rau hauv ib puag ncig tab sis tsis muaj ntawv pov thawj rau marine - qib corrosion kuj. H321, ntawm qhov tod tes, yog optimized rau marine ib puag ncig nrog txhim khu kev tiv thaiv rau intergranular thiab exfoliation corrosion.
Formability: H32 muaj kev khoov zoo dua piv rau H321, uas tuaj yeem ua rau tawg yooj yim dua thaum khoov vim nws qhov hnyav dua.
Nqi: H32 yog tus nqi pheej yig dua, ua rau nws tsim nyog rau cov ntawv thov tsawg dua, thaum H321 yog qhov zoo tagnrho rau ib puag ncig uas xav tau kev ua haujlwm siab nyob rau hauv cov dej hiav txwv tsis tu ncua.
Thaum xaiv Txhua:
Xaiv 5083 H32: Rau cov ntawv thov nyob rau hauv ib puag ncig corrosion nruab nrab (tsis yog- kev ua haujlwm hauv hiav txwv lossis chaw txaws), lossis qhov nqi thiab qhov muaj yog qhov kev txhawj xeeb tseem ceeb.
Xaiv 5083 H321: Rau cov ntawv thov uas yuav raug rau cov dej hiav txwv lossis lwm yam dej hiav txwv hnyav, lossis qhov yuav tsum tau ua raws li ASTM B928 thiab cov ntawv pov thawj marine kev ua tau zoo.
Lub ntsiab sib txawv ntawm 5083-H321 thiab 5083-H32 nyob rau hauv lawv cov txheej txheem kho cua sov thiab ua rau cov khoom siv kho tshuab. Ob leeg alloys zoo sib xws nyob rau hauv muaj pes tsawg leeg, tab sis lawv tempering txheej txheem muab lawv me ntsis txawv cov yam ntxwv, tshwj xeeb tshaj yog nyob rau hauv marine daim ntaub ntawv.
5083-H32
Kev ua haujlwm: Stabilized los ntawm kev kho cua sov tshwj xeeb uas coj nws mus rau "quarter hard" temper tom qab ua haujlwm txias.
Cov khoom: Qhov no yog ib qho kev kub ntxhov uas feem ntau paub txog lub zog zoo thiab siab corrosion kuj. Nws yog haum rau cov kev siv dav dav uas xav tau cov yam ntxwv no.
Lub zog: Tensile lub zog yog li 320 MPa, nrog lub zog tawm los ntawm kwv yees li 250 MPa.
5083-H321
Kev ua haujlwm: Zoo ib yam li H32, nws tau ua haujlwm txias tab sis tau txais kev kho cua sov sib txawv. Qhov no ua rau qis qis ntawm cov tawv nqaij tawv.
Cov khoom: Feem ntau tsim los rau cov dej hiav txwv ib puag ncig, nws muaj kev tiv thaiv zoo heev thiab kev ruaj ntseg zoo dua hauv cov xwm txheej hnyav piv rau H32.
Lub zog: Thaum zoo ib yam li H32, nws feem ntau muaj lub zog siab dua (txog 295 MPa) thiab lub zog tensile xws li 305 txog 380 MPa, nyob ntawm qhov tuab.
Nyob rau hauv cov ntsiab lus, thaum ob qho tib si alloys ua tau zoo nyob rau hauv marine ib puag ncig, 5083-H321 muaj kev ruaj ntseg me ntsis, ua rau nws zoo tagnrho rau marine daim ntaub ntawv uas yuav tsum tau muaj kev ua tau zoo.
