Qib ntawm corrosion-resistant alloy
Hais txog kev ua haujlwm corrosion, nickel-based alloys yog nruab nrab ntawm cov khoom tsis tshua muaj xws li stainless hlau thiab tantalum. Nickel-based alloys feem ntau yog siv rau hauv corrosive inorganic acid thiab fluoride ion-muaj ib puag ncig. Nyob rau hauv ib puag ncig no, ntau hom stainless hlau muaj kev ntxhov siab corrosion cracking, pitting, thiab crevice corrosion. Tsis tas li ntawd, kev lag luam ntshiab nickel hlau kuj raug xaiv rau ib puag ncig ntawm sodium hydroxide thiab potassium hydroxide (lub npe hu ua caustic soda tshuaj).
Zoo ib yam li corrosion kuj ntawm nickel-based alloys yog zirconium alloys thiab titanium alloys. Tab sis cov no thiaj li hu ua" nquag hlau" alloys yog qhov tshwj xeeb tshaj plaws thiab tsis tuaj yeem ua rau muaj qee yam ions, xws li fluoride ions.
Cov khoom tseem ceeb ntawm corrosion-resistant nickel-based alloys
Feem ntau cov nickel-raws li alloys muaj zog tiv thaiv kev ntxhov siab corrosion tawg los ntawm chloride ions
Feem ntau cov nickel-raws li alloys muaj corrosion kuj rau corrosive txo cov acids, xws li hydrochloric acid, hydrofluoric acid, thiab qis mus rau nruab nrab concentrations sulfuric acid.
Qee cov nickel-based alloys tuaj yeem tiv taus cov kua qaub uas muaj zog thiab muaj zog oxidizing acids
Feem ntau cov nickel-raws li alloys muaj siab tiv thaiv alkalis
Qee cov nickel-raws li alloys muaj kev tiv thaiv zoo rau hauv zos corrosion (pitting corrosion thiab crevice corrosion)
Tag nrho cov nickel-raws li alloys muaj qhov zoo ductility thiab yooj yim rau kev tsim, txheej txheem thiab vuam
Qhov tseem ceeb, nickel-based alloys yog resistant rau ntau hom corrosion. Qee cov nickel-raws li alloys muaj zog siv tau thiab tiv taus kom txo tau thiab oxidizing acids thiab alkalis, kev nyuaj siab corrosion cracking, pitting, thiab crevice corrosion.
Lub ntsiab kev faib tawm thiab kev siv ntawm corrosion-resistant nickel-based alloys
Nws muaj zog alkali
Ni-Cu rau txo cov kua qaub
ONi-Mo rau migratory acid
Ni-Fe-Cr rau oxidizing acid
Ni-Cr-Si rau super oxidizing acid
