Aisea Nickel Faʻavae Alloys?

Nikeli faʻavae Alloys

O Nickel-based alloys e taʻua foi o ni-based superalloys ona o lo latou maoae malosiaga, vevela tetee ma tetee atu pala. O le faʻavae tioata foliga faʻatotonuina o se foliga iloga o ni-faʻavae alloys talu ai ona galue nickel o se stabilizer mo le austenite.

Masani faʻaopopo vailaʻau elemeni i nickel-faʻavae alloys o chromium, cobalt, molybdenum, uʻamea ma tungsten.

Inconel® ma Hastelloy® Nickel-faʻavae Alloys

Lua o sili faʻavae Nickel-faʻavae alloys aiga o Inconel® ma Hastelloy®. O isi lauiloa gaosi oloa o Waspaloy®, Allvac® ma General Electric®.

Ole faʻatele ole faʻasologa ole nickel-based masani ole Inconel® ole:

• Inconel® 600, 2.4816 (72% Ni, 14-17% Cr, 6-10% Fe, 1% Mn, 0.5% Cu): O se uʻamea filogia o le nickel-chrome-iron e faʻaalia ai le mautu lelei i le lautele o le vevela fua. Fale o manu faasaga i chlorine ma chlorine vai.
• Inconel® 617, 2.4663 (Nickel paleni, 20-23% Cr, 2% Fe, 10-13% Co, 8-10% Mo, 1.5% Al, 0.7% Mn, 0.7% Si): O lenei uʻamea filogia na faia tele o nickel , chrome, cobalt ma molybdenum faʻaalia maualuga malosi ma teteʻe vevela.
• Inconel® 718 2.4668 (50-55% Ni, 17-21% Cr, Paleni uʻamea, 4.75-5.5% Nb, 2.8-3.3% Mo, 1% Co,): O se uʻamea filogia nickel-chrome-iron-molybdenum uʻamea filogia o le lauiloa mo lona lelei gaioiga ma sili ona lelei masini meatotino i maualalo vevela.

Hastelloy® nickel-based alloys e lauiloa mo lo latou teteʻe atu i acid. O mea taatele e:

• Hastelloy® C-4, 2.4610 (Nickel paleni, 14.5 - 17.5% Cr, 0 - 2% Co, 14 - 17% Mo, 0 - 3% Fe, 0 - 1% Mn): C-4 o se limasene uʻamea filogia chrome-molybdenum e faʻaogaina i siʻosiʻomaga ma inorganic acid.
• Hastelloy® C-22, 2.4602 (Paleni Nickel, 20 -22.5% Cr, 0 - 2.5% Co, 12.5 - 14.5% Mo, 0 - 3% Fe, 0-0.5% Mn, 2.5 -3.5 W): C- 22 o se uʻamea filogia-e tetee i le nickel-chrome-molybdenum-tungsten uʻamea filogia o loʻo faʻaalia ai le tumau lelei i acid.
• Hastelloy® C-2000, 2.4675 (Paleni Nickel, 23% Cr, 2% Co, 16% Mo, 3% Fe): O le C-2000 o loʻo faʻaaogaina i siosiomaga ma vailaʻau mataʻutia, e pei o le sulfuric acid ma le ferric chloride.

♦ Faʻaleleia le anagata o nikelasi-faʻavae galuega vaega

Nickel-based alloys e lauiloa mo a latou mea lelei e faʻaaoga e pei o le faaleagaina o le pala ma le maualuga o le vevela. Peitai, toeititi leai se galuega fasi mafai tumau faavavau, tusa lava pe o le a le matagofie o le mea. Ina ia faʻalauteleina le umi o vaega o vaega, e mafai ona togafitia faʻatasi alalaupapa nikeleti ma BoroCoat®, la matou faʻasologa faʻapitoa e faʻaleleia atili ai le faaleagaina ma ofuina le teteʻe faʻapea foi ma le faʻamautuina mai le oxidants.

O le tufatufaina vaega o BoroCoat® faʻalauteleina maaa luga e oʻo atu i le 2600 HV ae o loʻo tausia se faʻasologa o le 60 µm. O le laei faʻafitauli e matua alualu i luma, e pei ona faʻamaonia e le pine luga o le disc suʻega. E ui o le loloto o le laei o alofilima faʻavaeina nikelise faʻateleina le umi o le pine faʻasolosolo, ni-faʻavae alloys ma BoroCoat® faʻaali maualalo maualalo laei loloto i le taimi o le suʻega.

♦ Avanoa o Talosaga

Alloys ma se limasene faʻavae e masani ona faʻaaogaina i ni siʻosiʻomaga faigata o loʻo manaʻomia le lelei teteʻe atu i maualuga ma maualalo vevela, oxidation / pala ma maualuga malosi. O le mafuaʻaga lea e aofia ai tusi faʻapipiʻi ae le faʻatapulaʻaina i le: turbine engineering, power plant tekonolosi, vailaʻau vailaʻau, aerospace inisinia ma afuala / totoga.

 E tusa ma le 60% o le limasene i le lalolagi faʻaiʻuina o se vaega o le sila uʻamea. Ua filifilia ona o lona malosi, maaʻa, ma le teteʻe atu i le pala. Duplex stainless steels masani ona aofia ai le 5% limasene, austenitics tusa o le 10% limasene, ma le maoaʻe austenitics sili atu i le 20%. O le vevela e teteʻe ile vasega e masani ona iai le silia ma le 35% limasene. Nikeli-faʻapipiʻi alloys masani ona iai 50% limasene pe sili atu.