Meatotino Tete'e A'au O Mea Fa'amea Alloy -Nikeli

Ole malosi ole a'a ole nikeli -fa'avae u'amea e eseese e fa'atatau ile latou ituaiga ma le ala e fa'aogaina ai.

 

1. Nikeli Mama (Nikeli 201/Nikeli 200)
Fa'aoga fanua:
Tete'e i fa'asalalauga alkaline (pei o le sodium hydroxide);
E tetee atu i vaifofo masima masima pe vaivai, vai fou, suasami;
E le mafai ona fa'asalaina i vaila'au fa'ama'i malosi (e pei o le sulfuric acid, nitric acid).
Vasega a'a: I le tele o si'osi'omaga malu, e "sili ona lelei" (fua o le pala <0.1 milimita i le tausaga).

 

2. Nikeli-Kopa Alloy (Monel 400/Monel K-500)
Fa'aoga fanua:
E tetee atu i le sami, hydrofluoric acid, phosphoric acid, organic acids;
Tete'e i le chloride stress corroration (sili atu nai lo uamea stainless);
E le tete'e i si'osi'omaga malosi fa'ama'i ma le maualuga-sulfide sulfide.
Vasega pala: "Malo" (matua maualalo le pala) i le gataifale ma siosiomaga vailaau.

 

3. Nikeli-Chromium Alloy (Inconel 600/Inconel 625)
Fa'aoga fanua:
Tete'e i le maualuga-vevela o le vevela, nitric acid, organic acids, ma le chloride stress corrotion;
Talafeagai mo si'osi'omaga fa'a'u'ese'ese -fa'aitiitia.
Vasega a'a: "Ta'uta'ua" ile maualuga-vevela ma si'osi'omaga fa'ama'i leaga (tetele ole pala <0.05 mm/tausaga).

 

4. Nikeli-Alloy Molybdenum (Hastelloy B/Hatelloy B-2)
Fa'aoga fanua:
Tete'e i acid hydrochloric, sulfuric acid, phosphoric acid, ma isi.
E le fa'asalaina i ala fa'asalalau o lo'o iai mea fa'ama'i (e pei o Fe³⁺, Cu²⁺).
Vasega a'a: "Malo" i le fa'aitiitia o ga'o (toetoe lava leai se pala)

 

5. Nikeli-Chromium-Molybdenum Alloy (Hastellloy C-276/C-22)
Fa'aoga fanua:
Tete'e i vaila'au fa'ama'i (nitric acid, mixed acid), chloride, ma le kasa chlorine susu;
E matua'i malosi le tete'e atu i le lua ma le va'a.
Vasega pala: "Lualuga" i vailaʻau faʻafefiloi ma siosiomaga faʻatau pisinisi (e mafai ona le amanaʻia le fua o le pala)

E mana'omia le su'esu'eina o le fa'aoga moni e fa'atatau i le si'osi'omaga, vevela, fa'aogaina o oloa ma le fa'ama'iina-fa'aitiitia fa'atinoga;
I totonu o siosiomaga e iai le sulfur poʻo le maualuga o le faʻalavelave, e manaʻomia ni mamanu faʻapitoa (e pei o le faʻaopoopoina o le tungsten, kopa, ma isi);
Afai e te mana'omia le fa'ailoaina o nikeli-fa'avae u'amea mo si'osi'omaga patino, fa'amolemole tu'u mai fa'amatalaga auiliili (pei o le pH medium, oxidation-fa'aitiitiga fa'atino, filogia, ma isi).