Inconel 718 vs Waspaloy: Nickel Superalloy Xaiv rau Turbine Disk Daim Ntawv Thov

ib 718thiab Waspaloy yog ob lub hnub nyoog-nickel superalloys hardenable siv rau turbine thiab compressor disks, tab sis lawv muaj zog los ntawm cov precipitates sib txawv: 718 cia siab rau feem ntau ntawm gamma-ob npaug -prime (Ni3Nb), thaum Waspaloy cia siab rau classical gamma ({5}) prime ({5}). Qhov kev sib txawv no ua rau feem ntau ntawm kev txiav txim siab xaiv cov tswv yim. Tshwj xeeb Metals 'tus kheej cov ntaub ntawv hais txog 718 tseem muaj txiaj ntsig txuas ntxiv mus txog 704℃(1,300℃F) ua ntej nws lub zog txhawb zog pib hloov mus rau qhov tsis yog - ntxiv dag zog rau delta theem - thaum nws tus kheej Waspaloy cov ntawv xov xwm caps tseem ceeb rotating daim ntawv thov (xws li turbine disks 000), 1 'degree turbine 00pa), 1 '2000 ' siab dua 870℃(1,600℃F) qab nthab kom tsawg xav tau, tsis yog -rotating hardware.

Inconel 718 vs Waspaloy

Nyob rau hauv lwm yam lus, rau turbine disks tshwj xeeb, ob alloys 'headline nruam- kev pab cuam qab nthab yog ze dua li feem ntau assumed - tab sis nyob rau hauv lub overlapping ntau yam, Waspaloy's gamma -prime tuav lub zog ntau ntseeg tau nyob rau hauv lub siab kub, thaum 718 yog dramatically yooj yim mus rau weld, thiab tsis yooj yim rau weld, 12-15% cobalt uas ntxiv cov nqi thiab kev pheej hmoo rau Waspaloy. Qhia rau Inconel 718 kom qis dua - nqi, ntau fabricable, zoo dua -weldability disks thiab rotating hardware nyob rau hauv txias engine seem; qhia Waspaloy qhov twg lub zog ruaj khov ntawm 540-650℃yog qhov yuav tsum tau muaj kev tswj hwm thiab nws xav tau ntau dua, ua tib zoo tswj cov vuam thiab cov txheej txheem machining yog qhov kev lag luam txaus.

Ob lub alloys yog nag lossis daus-nickel superalloys hardened, tab sis lawv txhim kho lawv lub zog los ntawm txawv intermetallic theem: Inconel 718's niobium cov ntsiab lus gamma -ob npaug -prime (Ni3Nb), lub cev metastable -centered{{6} tanloy's cov ntsiab lus thaum lub sij hawm txhuas classical gamma-prime (Ni3(Al,Ti)), lub ntsej muag thermally ruaj khov-centered-cubic theem - thiab qhov sib txawv ntawm chemistry no yog lub hauv paus ua rau ze li ntawm txhua lwm yam sib txawv hauv kab lus no.

Element (wt.%)	Tom ntej: Inconel 718 (N07718)	Lub Npe Lub Npe (N07001)
Nickel	50.00-55.00 (+ Co)	Tshuav
Chromium	17.00-21.00	18.00-21.00
Hlau	Tshuav	max 2.00 Nws.
Cobalt	max 1.00 Nws.	12.00-15.00
Molybdenum	2.80-3.30	3.50-5.00
Niobium (+ Tantalum)	4.75-5.50	-
Titanium	0.65-1.15	2.75-3.25
Aluminium	0.20-0.80	1.20-1.60
Boron	0.006 max.	0.003-0.01
Zirconium	-	0.02-0.12
Cov pa roj carbon	0.08 max.	0.02-0.10
Thawj theem ntxiv dag zog	Gamma-double-prime, Ni3Nb (BCT)	Gamma-prime, Ni3(Al,Ti) (FCC)
UNS / Werkstoff	N07718 / 2.4668	N07001 / 2.4654

Tau qhov twg los: Special Metals Corporation nominal composition data for INCONEL alloy 718 and Waspaloy technical bulletins (SMC-045 and SMC-011).

Qhov sib txawv ntawm chemistry pom zoo tshaj plaws yog Waspaloy cov ntsiab lus tseem ceeb ntawm cobalt (12-15%) tiv thaiv 718 qhov tseem ceeb tsis muaj cobalt (1% siab tshaj) - cobalt nce qhov kub ntawm qhov gamma-prime tseem ruaj khov thiab ua rau nws coarsening, uas yog ib feem ntawm vim li cas Waspaloy tuav tau zoo dua ntawm qhov kub thiab txias.

Qhov tsis muaj niobium hauv Waspaloy, thiab qhov tsis muaj qhov tseem ceeb ntawm txhuas thiab titanium hauv 718, yog lwm qhov kev txiav txim siab sib cais: 718 tau txhob txwm tsim los ntawm gamma -ob npaug - tshwj xeeb vim tias cov theem ntawd qeeb qeeb thaum laus, uas (raws li cov tshooj lus tom qab piav qhia ' 7 zoo heev)

Qhov sib txawv me dua li qhov feem ntau xav tau rau cov ntaub ntawv tshwj xeeb ntawm turbine disks: Cov Hlau Tshwj Xeeb 'tus kheej Inconel 718 cov ntaub ntawv hais tias cov hlau tseem muaj txiaj ntsig txuas ntxiv mus txog 704℃(1,300℃F), thaum nws tus kheej Waspaloy cov ntaub ntawv lub kaus mom tseem ceeb rotating daim ntawv thov - lub caij nyoog qeb {2,50}℃poob rau hauv turbine disks F), tshwj tseg Waspaloy qhov siab dua, feem ntau- hais txog 870℃(1,600℃F) qab nthab tshwj xeeb rau lwm yam, xav tau tsawg dua, tsis yog -rotating daim ntawv thov.

Alloy	Nruam -kev pabcuam qab nthab	Tswj kev txwv
ib 718	~ 704℃(1,300℃F)	Gamma-double-prime pib hloov mus rau qhov tsis yog- ntxiv dag zog rau delta theem saum toj no
Waspaloy - daim ntawv thov tseem ceeb rotating (piv txwv li, turbine disks)	~ 650℃(1,200℃F)	Cov Hlau Tshwj Xeeb 'tus kheej tau hais txwv rau kev sib hloov, kev nyab xeeb- kho vajtse tseem ceeb
Waspaloy - lwm yam, tsawg thov thov	~ 870℃(1,600℃F)	Oxidation kuj thiab luv - lub sij hawm lub zog nyob rau hauv uas tsis yog - rotating Cheebtsam

Source: Special Metals Corporation, INCONEL alloy 718 thiab Waspaloy technical bulletins (SMC-045 and SMC-011).

Qhov no yog ib tug tiag tiag pab kho rau ib tug ntau oversimplification. Ntau ntawm cov ntaub ntawv thib ob piv rau ob lub alloys hais ncaj nraim tias "Waspaloy ua haujlwm kub siab dua 718," hais txog 870℃daim duab tsis muaj qhov tsim nyog uas lub qab nthab no siv rau cov khoom siv tsis yog -rotating hardware, tsis yog lub turbine thiab compressor disks tsab xov xwm no tshwj xeeb tshaj yog hais txog.

Rau daim ntawv thov disk nws tus kheej, ob qho tib si alloys 'tus kheej cov ntaub ntawv chaw tsim khoom tso qhov txuas ntxiv - kev pabcuam qab nthab nyob rau hauv li 50℃ntawm ib leeg. Qhov tseeb thiab muaj txiaj ntsig ntau dua framing tsis yog "Waspaloy khiav kub dua" tab sis "Waspaloy khaws ntau lub zog nyob rau hauv qhov kub thiab txias ob qho tib si alloys tuaj yeem zam" - uas yog cov ntsiab lus ntawm ob ntu tom ntej.

Gamma-double-prime yog theem metastable uas maj mam hloov mus rau orthorhombic delta theem (tseem Ni3Nb, tab sis tsis yog- ntxiv dag zog) thaum lub sij hawm ntev siab - kub raug, nce zuj zus tsis muaj zog 718; gamma-prime tsis dhau qhov kev hloov pauv sib npaug thiab tsuas yog coarsens qeeb dua, uas yog vim li cas gamma-prime- ntxiv dag zog rau cov alloys zoo li Waspaloy feem ntau muab kev ruaj ntseg microstructural zoo dua thaum txuas ntxiv nce siab - qhov kub thiab txias.

Why Does Gamma-Prime Retain Strength Better Than Gamma-Double-Prime at Sustained High Temperature

Qhov kev sib txawv no piav qhia vim li cas 718 qhov siab tshaj qhov kev pabcuam kub tau piav qhia nyob rau hauv cov nqe lus ntawm kev hloov pauv theem pib, thaum Waspaloy's tau piav qhia ntau ntxiv txog kev tiv thaiv oxidation thiab luv luv - lub sij hawm tuav lub zog - ob lub alloys mus txog rau lawv cov kev txwv los ntawm kev sib txawv tsis ua hauj lwm mechanisms. Nws kuj piav qhia tias yog vim li cas 718 yeej tsis tau npaj siab los sib tw nrog gamma- cov ntsiab lus tseem ceeb ntawm cov ntsiab lus kub tshaj plaws hauv cov roj turbine qhov kub; 718 qhov kev sib tw tiag tiag yog nyob rau hauv qhov kub thiab txias hauv qab nws cov delta - hloov pauv qhov pib, qhov twg nws cov kev sib xyaw ua ke ntawm lub zog, weldability, thiab cov nqi ua tau zoo dua lwm txoj kev, tsis yog nyob rau hauv kev sib piv Waspaloy lossis cov hmoov tshiab dua -metallurgy disk alloys degree- rau -degree ntawm qhov siab tshaj plaws disk rim.

Waspaloy tau luam tawm 1,000-teev kev sib tsoo lub zog poob los ntawm 89 ksi (615 MPa) ntawm 1,200℃F mus rau 16 ksi (110 MPa) ntawm 1,600℃F - thiab vim tias Cov Hlau Tshwj Xeeb 'tus kheej patent thiab cov khoom lag luam 8 cov ntaub ntawv sib cais sib cais poob qis dua 50 ksi ntawm 1,600℃F, qhov kev taw qhia dav dav yog qhov tseeb txawm tias tsis muaj qhov sib txuam zoo kawg nkaus - los ntawm - sab kev sim: nyob rau hauv kev sib koom ua haujlwm, Waspaloy's gamma-prime khaws cov load-cov kabmob muaj peev xwm ua tau zoo dua li 718-primeuble.{2

Kub	Waspaloy 1,000-teev rupture lub zog (Kub Kho A)
1,200℃F (649 degree)	89 ksi (615 MPa)
1,300℃F (704 degree)	65 ksi (450 MPa)
1,400℃F (760 degree)	42 ksi (290 MPa)
1,500℃F (816 degree)	26 ksi (180 MPa)
1,600℃F (870 degree)	16 ksi (110 MPa)

Source: Special Metals Corporation, typical creep-rupture properties, Waspaloy technical bulletin SMC-011 (zoo siab-kub creep thiab stress-rupture heat treatment).

Cov neeg nyeem yuav tsum nco ntsoov tias lub zog tawg thiab tensile / tawm lub zog muaj feem cuam tshuam tab sis cov khoom sib txawv, yog li qhov kev sib piv no yuav tsum tau nyeem cov lus taw qhia es tsis yog qhov tseeb, sib tw cov qauv ntsuas - lub ntsiab lus yog tias ob qho tib si cov duab, kos ntawm nws tus kheej los ntawm txhua tus alloy tus kheej cov ntaub ntawv, taw tes tib txoj kev. Rau ib qho kev tsim disk qhov twg txoj kev tswj tsis ua haujlwm yog nkag los yog kev ntxhov siab- tawg ntawm qhov kub thiab txias (tsis yog qhov qis- lub voj voog qaug zog lossis tensile overload), qhov kev tuav pov hwm lub zog no yog ib qho kev sib cav uas muaj zog tshaj plaws rau kev xaiv Waspaloy tshaj 718 hauv lawv qhov kev sib koom ua haujlwm.

Inconel 718 yog ib lub hnub nyoog weldable tshaj plaws - hardenable npib tsib xee superalloys precisely vim gamma -ob - prime forms maj mam thaum laus, cia welds ua nyob rau hauv cov tshuaj -annealed mob yam tsis muaj pre- cracking; Waspaloy, los ntawm qhov sib txawv, tau piav qhia meej los ntawm Cov Hlau Tshwj Xeeb raws li cov khoom siv "tsis yooj yim weldable sab nraum cov xwm txheej tswj tau zoo," nws ua rau kub- tus cwj pwm luv luv thiab strain- hnub nyoog tawg, thiab yuav tsum tau welded nkaus xwb nyob rau hauv cov tshuaj - kho mob nrog tag nrho cov kev pab cuam re{2} tom qab kho.

Qhov no yog qhov sib txawv ntawm qhov sib txawv loj tshaj plaws ntawm ob lub alloys rau fabricators thiab khw muag khoom. Lim- muaj hnub nyoog tawg tshwm sim thaum muaj kev txhim kho sai sai ua rau muaj kev ntxhov siab nyob rau hauv thiab ib ncig ntawm cov cua sov- thaj tsam cuam tshuam sai dua li cov khoom tuaj yeem so nws, tawg qhov sib koom ua ke thaum kho cua sov txhais tau tias yuav ntxiv dag zog rau nws.

Gamma-prime's comparatively fast precipitation kinetics ua Waspaloy tiag tiag raug rau hom tsis ua hauj lwm no, uas yog vim li cas Cov Hlau Tshwj Xeeb pom zoo kom ceev tshaj qhov ntsuas cua sov rau qhov kev daws teeb meem -annealing kub tshwj xeeb kom txo tau lub sij hawm siv nyob rau hauv lub hom phiaj - hnub nyoog -kev ua kom muaj zog, thiab yog vim li cas peb thiaj li tawg. yog qhov tseeb qis dua li cov cua sov- kho cov khoom siv wrought - Cov Hlau Tshwj Xeeb ncaj qha tawm tsam kev tso Waspaloy welds ntawm qhov siab - qhov chaw muaj kev ntxhov siab. Gamma-double-prime's slower formation muab 718 wider, ntau zam txim lub qhov rais rau ib yam vim li cas 718 qhia ib tug dav, zam txim kub- ua hauj lwm tiav- kub ntau yam nyob rau hauv forging, raws li tau hais nyob rau hauv ib tug khub kab lus nyob rau hauv no series.

Waspaloy tau qhia meej meej los ntawm Cov Hlau Tshwj Xeeb raws li "ntawm qhov nyuaj ntawm cov superalloys rau tshuab," thaum Inconel 718, txawm tias tseem nyuaj rau tshuab dua stainless hlau, feem ntau suav tias yog machinable ntau dua gamma -prime- siv zog alloys zoo li Waspachin {{3} ua tiav ntau yam kev ua haujlwm ntawm cov khoom siv. turbine disk feem ntau xav tau.

Which Alloy Is Easier to Machine

Machinability sib txawv nyob rau hauv ib tug disk tag nrho cov tsim ib ntus - ntxhib machining tom qab forging, ua tiav machining tom qab kev kho cua sov, thiab lwm yam rework tom ntej - yog li txawm ib tug nruab nrab ntawm ib tug -kev khiav hauj lwm sib txawv nyob rau hauv lub cuab tam lub neej, txiav ceev, los yog ua tiav nto tiav ua tiav tag nrho cov nqi thiab cov hlau lead -. Qhov nyuaj machining no ncaj qha txuas mus rau tib lub cobalt thiab gamma - thawj qhov ntim feem uas muab Waspaloy nws nce siab - kub lub zog kom zoo dua: cov khoom uas ua rau cov hlau tsis muaj zog deformation hauv kev pabcuam yog cov khoom zoo tib yam uas ua rau nws tiv thaiv cov khoom tshem tawm hauv lub khw muag khoom.

Waspaloy qhov kub- ua haujlwm ntau (1,800-2,140℃F) zaum ntawm qhov kub zoo sib xws rau Inconel 718's (1,650-2,050℃F), tab sis Waspaloy nqa ntau hom kev ua tsis tiav ntawm ob qho kawg {{14}1}, ua tau kub kub hauv qab no {{14}1} 8,00 ° F thiab qis dua saum toj no 2,150℃F - thiab ua hauj lwm-hardens sai heev, uas yog vim li cas intermediate annealing yog ib txwm yuav tsum tau thaum lub sij hawm txias forming ua hauj lwm uas 718 feem ntau zam tau nrog tsawg cuam tshuam.

Khoom	ib 718	Waspaloy
Kub- ua haujlwm ntau	1,650-2,050 ° F (900-1,120 ° F)	1,800-2,140 ° F (980-1,170 ° F)
Tsawg-kub tsis ua haujlwm txaus ntshai	Duplex grain qauv yog tias txo qis tsis sib xws	Cracking hauv qab 1,800℃F (980 degree)
Siab -kub tsis ua hauj lwm txaus ntshai	Grain coarsening / delta -theem dissolution saum ~ 1,900℃F	Kub-shortness saum 2,150℃F (1,180 degree)
Txias- tus yam ntxwv ua haujlwm	Ua hauj lwm hardens; intermediate anneals feem ntau xav tau rau kev txo hnyav	Ua hauj lwm hardens sai heev; intermediate annealing ib txwm xav tau

Source: Special Metals Corporation, INCONEL alloy 718 thiab Waspaloy technical bulletins (SMC-045 and SMC-011).

Waspaloy tus txheej txheem kev kho cua sov suav nrog cov kauj ruam ntxiv 718 tsis tas yuav muaj - kev ruaj ntseg anneal ntawm kev kho cov tshuaj thiab kev laus - ua Waspaloy cov txheej txheem ntev dua thiab ntau dua ib ntus-rhiab heev, ua raws li nws qhov kev cuam tshuam ntau dua rau strain- ntsig txog kev tawg yog tias tsis ua raws li lub sijhawm teem tseg.

Alloy	Txheem cua sov- kev kho mob raws li txoj cai
Inconel 718 (kev qaug zog / kev ceeb toom- tawg- kho kom zoo)	Anneal 1,700-1,850℃F, cua txias; hnub nyoog 1,325℃F / 8h, rauv txias rau 1,150℃F, tuav tag nrho cov laus lub sij hawm ntawm 18h
Waspaloy Heat Treatment A (ceeb/rupture-optimized)	Kev daws 1,975℃F / 4h, cua txias; ruaj khov 1,550℃F / 24h, cua txias; hnub nyoog 1,400℃F / 16h, cua txias
Waspaloy Thaum tshav kub kub kho B (tensile{0}} optimized)	Kev daws 1,825-1,895℃F / 4h, roj quench; stabilize 1,550℃F / 4h, cua txias; hnub nyoog 1,400℃F / 16h, cua txias

Source: Special Metals Corporation, INCONEL alloy 718 thiab Waspaloy technical bulletins (SMC-045 and SMC-011).

Waspaloy's intermediate stabilization kauj ruam muaj nyob rau hauv precipitate grain - ciam teb carbides nyob rau hauv ib txoj kev tswj ua ntej cov kauj ruam laus tsim cov bulk gamma -prime ntxiv dag zog rau - ib tug sequencing xaiv uas txo rhiab heev rau tom ntej grain - ciam teb nres nyob rau hauv cov kev pab cuam lub sij hawm tab sis ntxiv cov txheej txheem tsis ncaj ncees lawm. Qhov no yog ib qho kev qhia ntxiv ntawm tib lub hauv paus ntsiab lus uas khiav los ntawm kab lus no: Waspaloy's superior high -temperature retention is purchased by the cost of a narrower, less forgiving, more heavy sequenced manufacturing process.

Yog - Waspaloy's 12-15% cobalt cov ntsiab lus yog qhov tseeb, tus nqi tsim khoom thiab khoom siv-chaw sib txawv ntawm Inconel 718, uas muaj qhov tseem ceeb tsis muaj (1% siab tshaj plaws); cobalt yog ib qho me me, ntau qhov chaw nyob, thiab keeb kwm ntau dua tus nqi- kev lag luam tsis hloov pauv ntau dua li npib tsib xee, chromium, los yog molybdenum, thiab nws lub xub ntiag ntawm ob tus lej hnyav feem pua ntawm Waspaloy tsis yog ib qho me me alloying footnote.

Qhov no tsis yog qhov kev thov hais txog tus nqi tshwj xeeb tam sim no, uas hloov pauv nrog cobalt kev ua lag luam thiab yuav tsum tau lees paub tawm tsam tam sim no zeb quotes - nws yog ib qho kev soj ntsuam ntawm ob lub alloys 'cov khoom siv raug nqi raug. Ib qho kev txiav txim siab ntawm cov khoom siv ntawm 718 thiab Waspaloy yog, ib feem, kev txiav txim siab txog ntau npaum li cas ntawm qhov ua tiav ntawm tus nqi hauv paus yuav tsum raug cuam tshuam rau cobalt kev lag luam tsis hloov pauv ntau dua li qhov sib piv ntau ruaj khov npib tsib xee, chromium, thiab molybdenum kev lag luam ob qho tib si alloys sib faib.

Ob lub alloys sib koom ASTM B637 ua ib qho bar thiab forging-cov lus qhia tshwj xeeb, tab sis txhua tus nqa nws tus kheej cov tsev neeg ntawm AMS cov lus qhia tshwj xeeb uas cuam tshuam lawv cov cua sov sib txawv- kev kho cov kab ke - Waspaloy cov lus qhia tshwj xeeb tau qhia meej meej cais cov kev daws teeb meem - kho- tsuas yog 7 5 6 08 AM S tshuaj-stabilized-thiab- cov khoom muaj hnub nyoog (AMS 5704, AMS 5707, AMS 5709), tib lub ntsiab lus sib cais tau them rau Inconel 718's AMS 5662/5663 khub hauv ib tsab xov xwm ua ke.

Kev xav tau	ib 718	Waspaloy
Bar, forging khoom	ASTM B637, AMS 5662 (kev kho mob), AMS 5663 (kev daws + hnub nyoog)	ASTM B637, AMS 5706/5708 (kev daws teeb meem), AMS 5704/5707/5709 (kev daws teeb meem + ruaj khov + hnub nyoog)
Ntxiv bar / forging specs	AMS 5664, AMS 5832, AWS 5914, AMS 5962	AMS 5828, ISO 9723-9725, TS EN ISO 9723-9725
Phaj, ntawv, strip	ASTM B670/B906, AMS 5596/5597	TIAB SA 5544
Vuam muab tub lim	INCONEL Filler Metal 718 AWS A5.14 ERNiFeCr-2	Matched -composition Waspaloy muab tub lim; tshuaj- kho mob yuav tsum tau ua ua ntej welding
UNS / Werkstoff	N07718 / 2.4668	N07001 / 2.4654

Source: Special Metals Corporation, "Available Products and Specifications," INCONEL alloy 718 thiab Waspaloy technical bulletins.

Qhia meej Inconel 718 rau compressor disks, kiv cua disks, thiab qis dua -kub turbine disks qhov chaw ua haujlwm kub nyob qis qis qis dua 600-650 degree, qhov chaw tsim nqi, weldability, thiab machinability teeb meem, thiab qhov twg cobalt -kev lag luam raug kev txhawj xeeb; qhia Waspaloy qhov twg lub disk pom kev ua haujlwm ruaj khov nyob rau hauv 540-650℃ntau thiab creep / kev ntxhov siab-rupture lub zog tuav nyob rau lub sijhawm ua haujlwm ntev yog tus tsim qauv tsav tsheb.

Xaiv Inconel 718 rau:Compressor, kiv cua, thiab qis dua -kub turbine disks ua haujlwm zoo nyob rau hauv 718's tas mus li- kev pabcuam ntau yam.

Xaiv Inconel 718 rau:Disks los yog kho vajtse uas yuav tsum tau vuam, vuam, los yog nws kim heev machining raws li ib feem ntawm fabrication.

Xaiv Inconel 718 rau:Cov kev pab cuam uas txo cov nqi khoom thiab txo qhov raug rau cobalt-kev ua lag luam tus nqi yog qhov tseem ceeb.

Xaiv Waspaloy rau:Turbine disks thiab rotating hardware kev khiav hauj lwm nyob rau hauv kwv yees li 540-650℃ntau yam uas sustained creep thiab stress-rupture zog tswj lub neej disk.

Xaiv Waspaloy rau:Cov ntawv thov uas tus neeg tsim khoom tau tsim nyog, nruj tswj hwm cov txheej txheem vuam tuaj yeem tswj tau Waspaloy's strain-hnub nyoog tawg rhiab heev, lossis qhov chaw tsim qauv zam welds ntawm siab - qhov chaw muaj kev ntxhov siab nkaus xwb.

Xaiv Waspaloy rau:Cov kev pab cuam lub cav qub qub thiab kho / kho dua tshiab uas Waspaloy yog tus tsim nyog, kos duab - hu ua - tawm cov khoom siv thiab hloov pauv tsis yog ib qho kev xaiv.

Rau qhov kub tshaj plaws turbine disk txoj hauj lwm dhau los ntawm alloy qhov kev ua tau zoo, nco ntsoov tias ob qho tib si 718 thiab Waspaloy tau raug ntxiv rau hauv lub cav tshiab tshaj plaws los ntawm cov hmoov-metallurgy gamma-prime/gamma-ob npaug-prime superalloys tsim tshwj xeeb rau kev thawb {5} qhov kub thiab txias ob- sib piv alloy piav qhia txog qhov zoo- tsim, tseem-txoj kev xaiv, tsis yog tag nrho cov niaj hnub turbine disk cov ntaub ntawv toj roob hauv pes.

Q: Puas yog Waspaloy muaj zog dua Inconel 718?

A: Ntawm qhov ntsuas kub siab nyob rau hauv lawv qhov kev sib koom ua haujlwm, yog - Waspaloy's gamma-thaum ntxiv dag zog khaws cov khoom thauj-cov kabmob muaj peev xwm ntseeg tau ntau dua li 718's gamma-ob npaug-prime, uas yog nquag hloov mus rau qhov tsis dhau - lub sijhawm streng. Nyob rau hauv chav tsev kub, ob qho tib si alloys tuaj yeem kho cua sov kom sib piv siab siab -lub zog.

Q: Puas yog Waspaloy tiag tiag ua haujlwm ntawm qhov kub siab tshaj Inconel 718?

A: Tsis yog los ntawm ntau npaum li feem ntau xav rau turbine disks tshwj xeeb. Tshwj xeeb Metals 'tus kheej cov ntaub ntawv lub kaus mom Waspaloy ntawm 650℃(1,200℃F) rau qhov tseem ceeb rotating daim ntaub ntawv xws li disks, piv rau 718's 704℃(1,300℃F) txuas ntxiv - pabcuam qab nthab. Waspaloy feem ntau -cited 870℃(1,600℃F) muaj peev xwm siv tau rau qhov xav tau tsawg dua, tsis yog{14}}rotating daim ntawv thov, tsis yog turbine disks.

Q: Vim li cas Inconel 718 yooj yim rau vuam dua Waspaloy?

A: 718's gamma-ob npaug- theem pib ntxiv dag zog rau cov ntaub ntawv maj mam thaum lub sijhawm laus, yog li cov welds tuaj yeem ua rau hauv kev daws teeb meem-annealed mob yam tsis muaj tawg thaum lub sijhawm kho cua sov tom ntej. Waspaloy's gamma- theem tseem ceeb ntawm cov ntaub ntawv sai dua, ua rau cov hlau ua rau strain- hnub nyoog tawg; Tshwj xeeb Metals xeev Waspaloy tsis tau yooj yim weldable sab nraum cov xwm txheej tswj kom zoo thiab yuav tsum tau welded nkaus xwb nyob rau hauv cov kev daws teeb meem - kho mob, nrog rau tag nrho cov tivthaiv re- tshuaj kho tom qab.

Q: Puas yog Waspaloy kim dua Inconel 718?

A: Waspaloy's 12-15% cobalt cov ntsiab lus (piv rau 718's tseem ceeb cobalt-chemistry dawb) yog tus nqi tsim khoom thiab cov khoom siv- cov saw sib txawv, txij li cobalt yog ib qho me me, ntau lub lag luam tsis muaj nqi tshaj npib tsib xee lossis chromium. Ua ke nrog Waspaloy qhov kev ua haujlwm nyuaj dua thiab xav tau kev tsim khoom ntau dua, nws feem ntau nqa tus nqi xa khoom ntau dua, txawm tias cov nqi them yuav tsum tau lees paub tiv thaiv tus nqi lag luam tam sim no.

Q: Inconel 718 puas tuaj yeem siv los hloov pauv ncaj qha rau Waspaloy hauv lub tshuab hluav taws xob turbine?

A: Tsis tau. Thaum 718 yooj yim dua thiab pheej yig dua los tsim, nws txuas ntxiv - kev pabcuam kub qab nthab thiab nce siab - qhov kub thiab txias tuav txawv ntawm Waspaloy's, thiab turbine disk hloov yuav tsum muaj kev tsim nyog tag nrho ntawm lub cav qhov kub thiab txias, kev ntxhov siab, thiab kev pab cuam- lub neej yuav tsum tau ua - tsis yog ib qho zoo li {7} swap.

Q: Yam hlau twg yooj yim dua rau tshuab, Inconel 718 lossis Waspaloy?

A: Inconel 718 feem ntau suav hais tias yog ntau dua machinable. Cov Hlau Tshwj Xeeb piav qhia meej txog Waspaloy raws li qhov nyuaj ntawm cov superalloys rau tshuab, qhov tshwm sim ncaj qha los ntawm tib cov ntsiab lus cobalt thiab gamma- cov khoom ntim tseem ceeb uas ua rau nws siab dua - qhov kub thiab txias.

Inconel 718 thiab Waspaloy yog dab tsi, thiab lawv cov cuab yeej siv zog sib txawv li cas?

Cov Alloy twg muaj qhov kub siab tshaj qhov kev pab cuam rau Turbine Disk daim ntawv thov?

Vim li cas Gamma-Prime tuav lub zog zoo dua li Gamma-ob npaug-Prime ntawm Sustained High Temperature?

Ob lub alloys sib piv li cas hauv Creep thiab Stress -Rupture Strength?

Dab tsi Alloy yog yooj yim dua rau Weld thiab Fabricate?

Yam khoom twg yog qhov yooj yim rau tshuab?

Yuav Ua Li Cas Ob Lub Alloys Sib Piv Hauv Kub- Ua Haujlwm Ntau Yam thiab Forgeability?

Yuav Ua Li Cas Cov Txheej Txheem Kub Kub -Kev Kho Mob Sib Piv?

Cov ntsiab lus Cobalt puas tsim tus nqi thiab muab kev txiav txim siab rau Waspaloy?

Cov txheej txheem twg tswj hwm txhua Alloy rau Turbine Disk Procurement?

Dab tsi Alloy Koj Yuav Tsum Qhia Txog Daim Ntawv Thov Turbine Disk?

Cov lus nug nquag