Ntau npaum li cas yog Nickel-based Superalloy?

Nickel-based superalloy ntau npaum li cas? Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis ntau lawm, cov txheej txheem ntawm cov hlau alloys tau ua ntau dua thiab zoo meej. Nickel-based superalloys feem ntau yog siv hauv qee qhov kev lag luam tseem ceeb, yog li qhov zoo yuav tsum tau nruj me ntsis dhau. Yog li ntawd, tus nqi ntawm nickel-based superalloys yog me ntsis siab dua li cov hlau zoo tib yam. Vim yog cov qauv sib txawv thiab cov qauv tsim los ntawm cov tuam txhab sib txawv, cov nickel-based superalloys kuj txawv. Hauv qab no, Haibowell editor yuav piav qhia meej npaum li cas tus nqi nickel-based superalloys!

Muaj ntau ntau hom nickel-based superalloys, thiab lawv cov nqi cuam tshuam nrog cov hlau sib xws. Cov tuam txhab sib txawv, sib txawv proportions, thiab cov nqi sib txawv hauv qhov chaw sib txawv tsis zoo ib yam. Tam sim no, tus nqi lag luam tseem ceeb ntawm cov nickel-hlau alloys tsawg yog li US $ 440 / nickel, thiab tus nqi siab dua yog US $ 450 / nickel; lub ntsiab ex-Factory tus nqi nruab nrab nickel-hlau 4-6% yog hais txog US $ 180 / nickel, thiab tus nqi siab dua yog US $ 190 / nickel.

Nickel-based superalloys xa mus rau cov alloys uas tuaj yeem kub thiab txias deformed, nrog rau kev khiav hauj lwm kub ntawm -253 mus rau 1320 degree, zoo mechanical zog thiab tag nrho lub zog thiab toughness ntsuas, thiab siab oxidation thiab corrosion kuj. Raws li cov txheej txheem kev kho cua sov, nws tuaj yeem muab faib ua cov khoom siv ntxiv dag zog rau cov hlau thiab cov laus zog ntxiv dag zog.

1) Cov khoom siv ntxiv dag zog rau alloy

Kev khiav hauj lwm kub yog 900-1300 degree, thiab oxidation kuj kub mus txog 1320 degree . Piv txwv li, GH128 alloy muaj chav kub tensile zog ntawm 850MPa thiab lub zog tawm los ntawm 350MPa; Lub zog tensile ntawm 1000 degree yog 140MPa, lub elongation yog 85%, thiab lub neej endurance ntawm 1000 degree thiab 30MPa kev nyuaj siab yog 200 teev thiab elongation yog 40%. Cov khoom siv tshuaj lom neeg feem ntau yog siv los ua aviation thiab aerospace engine combustion chambers, casings thiab lwm yam.

2) Hnub nyoog ntxiv dag zog rau alloy

Kev khiav hauj lwm kub yog -253-950 degree , thiab nws feem ntau yog siv los ua cov khoom siv xws li turbine disks thiab cov hniav ntawm aviation thiab aerospace engines. Lub alloy ua hauj lwm kub rau kev ua turbine disks yog -253-700 degree, thiab nws yuav tsum muaj zoo kub thiab tsis kub lub zog thiab qaug zog zog. Piv txwv li: GH4169 alloy, yield zog ntawm 650 degree yog 1000MPa; Lub alloy kub rau kev ua hniav tuaj yeem ncav cuag 950 degree, piv txwv li: GH220 alloy, lub zog tensile ntawm 950 degree yog 490MPa, thiab lub neej endurance ntawm 940 degree thiab 200MPa yog ntau tshaj 40 teev.

Peb, Haibowell, muab ntau yam khoom titanium, suav nrog tab sis tsis txwv rau titanium tuav, titanium daim hlau, titanium forgings thiab lwm yam khoom forged titanium. Peb cov ntaub ntawv titanium yog forged siv cov thev naus laus zis hauv tsev sab saum toj, nrog cov khoom zoo dua thiab cov nqi qis dua. Peb kuj muab cov kev pabcuam zoo tom qab muag, thiab tuaj yeem muab 50% mus rau 80% tawm cov kev pabcuam raws li koj cov nyiaj yuav khoom. Yog tias koj txaus siab rau peb cov khoom lossis muaj lus nug, koj tuaj yeem tiv tauj peb los ntawm email lossis xov tooj.

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