Inconel 686 yog aNickel - chromium {}} molybdenum {}} mo {}}}} w) SuperalalloyToding rau Hastelloy® tsev neeg (feem ntau hu ua Hastelloy® C-22hs lossis Inconel® 686). Nws yog engineered rau cov pej xeem huab, sib txuas tshwj xeeb cov tshuaj tiv thaiv nrog lub zog muaj zog. Nws cov yam ntxwv tseem ceeb muaj raws li hauv qab no:
Tshwj kev txiav txim siab corrosion tsis kam
Nws ua kom cov khoom ua kom zoo dua rau kev tawm tsam ntau ntxiv rau cov kev tawm tsam, xws li cov tshuaj solid), cov tshuaj polrophoric acid), cov tshuaj polrophoric acid), cov tshuaj polrophoric acid), cov tshuaj polrophoric, cov colrochloric acid), cov tshuaj pleev pob zeb, thiab cov nqaij ntses. Qhov no yog ntaus nqi rau nws cov ntsiab lus siab ntawm chromium (20-23%), uas yog ua rau muaj kev sib tw oxide (15-4-4-4)
Lub zog siab ntawm chav thiab nce qhov kub
Raws li ib qho dej nag - Cov zog siv siab, nws ua tiav lub zog siab los ntawm kev laus los ntawm 'theem, ni₃ (al, ti)). Nws tswj tau cov khoom siv zoo ntawm cov tshuab kub txog650℃(1202 Qib F), ua rau nws haum rau ob leeg corrosive thiab siab - kev pab kub (piv txwv li, offshore roj thiab roj cuab).
Zooricability thiab weldability
Txawm hais tias nws cov ntsiab lus siab siab, Inconel 686 muaj cov haujlwm zoo, cia kev zam txim, dov, extrusion, thiab machines. Nws tseem tseem zoo heev weldability, sib haum nrog cov vuam vuam (piv txwv li, roj tungsten arc vuam, gtaw; roj av hlau vuam, gmaw). Tshaj tawm - Weld Kev Kho Tshav Kub yog feem ntau tsis tas yuav tsum tswj hwm corrosion tsis kam, yooj yim cov txheej txheem tsim khoom.
Kuj mus rau oxidation thiab siab - kub corrosion
Thaum nce qhov kub thiab txias, nws tsim cov tawv tawv chromium -} cov txheej oxidation uas tiv thaiv oxidation nyob rau hauv huab cua thiab lwm yam oxidizing ib puag ncig. Nws kuj tau nrog siab siab - kub thiab kub kub, nthuav nws daim ntawv thov hauv high {}} kub kev lag luam siab.
Ruaj khov microstructure
Nws microstructure tseem ruaj ntseg txawm tias tom qab ntev {}}}}, σ, qhov muaj zog ua phem, σ theem) uas tuaj yeem txwv corrosion tsis kam thiab cov khoom siv tshuab.
Cov txiaj ntsig muaj zog ntawm inconel 686 yog feem ntau txiav txim siab los ntawm nwsKev Kho Cua Sov(tov annealing + kev laus) thiab sim ntsuas kub. Cov hauv qab no yog qhov tseem ceeb rau cov neeg muaj hnub nyoog feem ntau:
Chav Chav Kub (25 Qib / 77 Qib F): Ranges los ntawm827-965 MPa (120,000-140,000 PSI)Cov. Tom qab kev kho mob laus (piv txwv li, kev daws anrealed ntawm 1065℃f, ces {{txias rau 820 {txias yog ib txwm nyob ib puag ncig900 mpa (130,500 psi).
Nce kub (piv txwv li, 400℃/ 752℃f): Tseem muaj siab, kwv yees li758-896 MPA (110,00030,000 PSI).
Nce kub (piv txwv li, 650℃/ 1202℃f): Tseem tswj hwm ib qho txiaj ntsig lub zog ntawm txog620-758 MPa (90,000-110,000 PSI), kom ntseeg txoj kev ntseeg siab hauv qhov siab - kub corrosive ib puag ncig.
Zoo ib yam li paib lub zog, lub tensile lub zog ntawm inconel 686 sib txawv nrog kev kho cua sov thiab sim ntsuas kub. Lub zog tensile convers rau qhov kev ntxhov siab tshaj plaws lub alloy tuaj yeem tiv taus ua ntej pob txha lov. Cov nqi raug rau cov laus muaj raws li nram no:
Chav Chav Kub (25 Qib / 77 Qib F): Feem ntau muaj los ntawm1034-1172 MPA (150,000-170,000 PSI)Cov. Nyob rau hauv cov qauv kev laus, lub zog tensile yog ib puag ncig1100 MPa (159,500 psi).
Nce kub (piv txwv li, 400℃/ 752℃f): Txo qis me ntsis rau kwv yees li965-1099 MPA (140,000-159,400 PSI).
Nce kub (piv txwv li, 650℃/ 1202℃f): Khaws lub zog tensile ntawm txog793-931 MPa (115,000-135,000 PSI), ntsib lub zog uas yuav tsum muaj ntawm high- kub thiab corrosive kev pabcuam.
