Ingxubevange esuselwe ku-nickel ifakwe nesithombe esifakiwe se-Passivation

Ingxubevange esekelwe ku-nickel Ifakwe ngePassivation

Incazelo emfushane:

Mayelana nama-Nickel-based Alloys

Ama-alloys asekelwe ku-nickel abuye abizwe ngokuthi ama-superalloys asekelwe ku-ni ngenxa yamandla awo avelele, ukumelana nokushisa nokumelana nokugqwala.Isakhiwo sekristalu esigxile ebusweni siyisici esihlukile sama-alloys asuselwa ku-ni njengoba i-nickel isebenza njengesizinzisi se-austenite.

Izakhi zamakhemikhali ezengeziwe ezivamile kuma-alloys asekelwe ku-nickel yi-chromium, i-cobalt, i-molybdenum, insimbi ne-tungsten.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izinhlobo Ezivamile Ze-Nickel Alloys

I-nickel izohlangana kalula nezinsimbi eziningi njengethusi, i-chromium, insimbi, ne-molybdenum.Ukwengezwa kwe-nickel kwezinye izinsimbi kushintsha izakhiwo ze-alloy ewumphumela futhi kungasetshenziswa ukukhiqiza izici ezifiselekayo ezifana nokugqwala okuthuthukisiwe noma ukumelana ne-oxidation, ukwanda kokusebenza kwezinga lokushisa eliphezulu, noma ama-coefficients aphansi okwandisa okushisayo, isibonelo.

Izigaba ezingezansi zinikeza ulwazi mayelana nalolu hlobo lwama-nickel alloys.

I-Nickel-Iron Alloys

Ama-alloys e-nickel-iron asebenza ezinhlelweni lapho indawo efiselekayo iyinani eliphansi lokunwetshwa okushisayo.I-Invar 36®, ethengiswa namagama ohwebo we-Nilo 6® noma i-Pernifer 6®, ibonisa i-coefficient yokunweba okushisayo okungaba ngu-1/10 wensimbi ye-carbon.Lezi zinga eliphezulu lokuzinza kwe-dimensional zenza ama-alloys e-nickel-iron abe usizo ezinhlelweni ezifana nemishini yokulinganisa ukunemba noma izinti ze-thermostat.Amanye ama-alloys e-nickel-iron ane-nickel egxilile nakakhulu asetshenziswa ezinhlelweni lapho izici ezithambile zikazibuthe zibalulekile, njengeziguquli, ama-inductors, noma amathuluzi okugcina inkumbulo.

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I-Nickel-Copper Alloys

Ama-alloys e-nickel-copper amelana kakhulu nokugqwala ngamanzi anosawoti noma amanzi olwandle futhi ngaleyo ndlela athola ukusetshenziswa kolwandle.Njengesibonelo, i-Monel 400®, nayo ethengiswa ngaphansi kwamagama okuhweba i-Nickelvac® 400 noma i-Nicorros® 400, ingathola ukusetshenziswa ezinhlelweni zamapayipi olwandle, ama-pump shaft, namavalvu amanzi olwandle.Le ingxubevange njengoba lokuhlushwa ubuncane 63% nickel kanye 28-34% yethusi.

I-Nickel-Molybdenum Alloys

Ama-alloys e-nickel-molybdenum anikeza ukumelana kwamakhemikhali okuphezulu kuma-asidi aqinile nezinye izinciphisi ezifana ne-hydrochloric acid, i-hydrogen chloride, i-sulfuric acid, ne-phosphoric acid.I-chemical makeup ye-alloy yalolu hlobo, njenge-Alloy B-2®, ine-concentration ye-molybdenum engu-29-30% kanye ne-nickel concentration ephakathi kuka-66-74%.Izicelo zihlanganisa amaphampu nama-valve, ama-gaskets, imikhumbi yokucindezela, izishintshisi zokushisa, nemikhiqizo yamapayipi.

Ama-Nickel-Chromium Alloys

Ama-alloys e-nickel-chromium aziswa kakhulu ngenxa yokumelana nokugqwala okuphezulu, amandla ezinga lokushisa eliphezulu, nokumelana nogesi okuphezulu.Isibonelo, ingxubevange ye-NiCr 70/30, ephinde yaqokwa njenge-Ni70Cr30, i-Nikrothal 70, i-Resistohm 70, ne-X30H70 inendawo encibilikayo engu-1380oC kanye nokuphikiswa kukagesi okungu-1.18 μΩ-m.Izinto zokushisisa njengama-toaster nezinye izifudumezi zikagesi ezikwazi ukumelana nogesi zisebenzisa ama-alloys e-nickel-chromium.Uma kukhiqizwa ngendlela yocingo zaziwa ngokuthi i-Nichrome® wire.

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