Corrosion Resistance ntawm Qib 5 Titanium

Qib 5 titanium alloy (Ti‑6Al-4V) tau txais txiaj ntsig zoo rau nws qhov zoo tshaj plaws corrosion kuj nyob rau hauv ib puag ncig hnyav, suav nrog dej hiav txwv, acidic media, thiab alkaline daws. Nws tus cwj pwm zoo corrosion yog los ntawm nyias, ntom, kho tus kheej titanium dioxide (TiO₂) zaj duab xis passive uas tsim tam sim ntawm qhov chaw thaum raug oxygen lossis noo noo. Cov yeeb yaj kiab no ua rau muaj txiaj ntsig zoo tiv thaiv kev tawm tsam corrosive, ua kom muaj kev ruaj ntseg ntev txawm tias nyob rau hauv cov xwm txheej hnyav.

Qib 5 qhia tau tshwj xeeb corrosion kuj. Cov dej hiav txwv muaj cov tshuaj chloride ntau ntau, uas feem ntau ua rau pitting corrosion, crevice corrosion, thiab kev nyuaj siab corrosion cracking (SCC) hauv stainless hlau thiab lwm yam hlau alloys. Txawm li cas los xij, Qib 5 tseem muaj kev tiv thaiv zoo rau cov ntaub ntawv ntawm corrosion. Nws qhia tau hais tias zoo heev tiv thaiv corrosion, pitting, thiab crevice corrosion nyob rau hauv ob qho tib si zoo li qub thiab ntws dej hiav txwv, txawm nyob rau hauv nruab nrab kub. Nws kuj nthuav tawm cov kev tiv thaiv zoo tshaj plaws rau SCC hauv cov cheeb tsam uas muaj cov tshuaj chloride, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau marine engineering, offshore platforms, seawater cooling systems, desalination equipment, and submarine components. Tsis tas li ntawd, nws ua tau zoo nyob rau hauv kev yaig-corrosion tej yam kev mob tshwm sim los ntawm seawater ntws thiab tshem tawm hais.

Nyob rau hauv acidic ib puag ncig, 

Qhov kev ua tau zoo ntawm Qib 5 yog nyob ntawm hom thiab concentration ntawm cov kua qaub, nrog rau qhov kub thiab txias thiab aeration. Nws pom zoo corrosion kuj nyob rau hauv oxidizing acids xws li nitric acid, chromic acid, thiab feem ntau organic acids xws li acetic acid, citric acid, thiab oxalic acid. Hauv cov xov xwm no, cov yeeb yaj kiab passive tseem nyob ruaj khov thiab tiv thaiv. Txawm li cas los xij, hauv cov ntsiab lus txo cov kua qaub xws li hydrochloric acid, sulfuric acid, thiab hydrofluoric acid, tus nqi corrosion nce ntau. Hydrofluoric acid tshwj xeeb yog txhoj puab heev thiab dissolves tiv thaiv oxide zaj duab xis sai. Hauv kev txo qis acids, kev txhim kho corrosion tuaj yeem txhim kho los ntawm kev ntxiv oxidizing inhibitors.

Nyob rau hauv ib puag ncig alkaline, 

Qib 5 titanium alloy qhia tau zoo heev corrosion kuj. Nws muaj kev ruaj khov nyob rau hauv feem ntau alkaline kev daws teeb meem, suav nrog sodium hydroxide, potassium hydroxide, thiab calcium hydroxide, nyob rau hauv chav tsev thiab kub siab. Cov yeeb yaj kiab TiO₂ tsis muaj tshuaj lom neeg ruaj khov hauv alkaline xov xwm, tiv thaiv kev xeb thiab degradation nto. Txawm nyob rau hauv cov ntsiab lus alkaline, Qib 5 tswj cov nqi qis thiab kev ua haujlwm zoo. Nws tsis raug kev txom nyem los ntawm corrosion tseem ceeb los yog embrittlement nyob rau hauv alkaline ib puag ncig, uas nthuav nws daim ntawv thov nyob rau hauv chemical processing, wastewater kho mob, thiab electroplating khoom.

Qib 5 titanium alloy muab zoo heev corrosion kuj nyob rau hauv seawater, ntau acidic daws, thiab feem ntau alkaline ib puag ncig. Nws yog qhov tshwj xeeb tshaj yog nyob rau hauv cov dej hiav txwv uas muaj chloride, qhov uas nws ua tau zoo tshaj ntau cov hlau tsis muaj steel thiab cov nickel-based alloys. Nws muaj zog heev hauv oxidizing thiab alkaline xov xwm tab sis qhia tau hais tias tsis muaj zog tiv thaiv cov acids uas tsis muaj inhibitors. Nws kev sib xyaw ua ke ntawm lub zog siab thiab tshwj xeeb corrosion kuj ua rau Qib 5 yog cov khoom siv zoo tshaj plaws rau cov khoom siv tseem ceeb hauv marine, tshuaj, offshore, thiab kev siv engineering ib puag ncig.