Corrosion Cwj Pwm Ntawm TC2 Titanium Alloy Nyob Hauv Kev Ntxhov Thiab Hloov Hauv Simulated Seawater Ib Cheeb Tsam

Corrosion tus cwj pwm ntawm TC2 titanium alloy nyob rau hauv kev nyuaj siab thiab ib hom nyob hauv qhov chaw simulated seawater

Qhov chaw ntawm cov hlau electrochemical thiab corrosion ntawm TC2 titanium hlau hauv simulated seawater thiab cov nyhuv ntawm cov deformation txawv ntawm nws tau kawm. Kev ntsuam xyuas, AC impedance thiab polarization curve xeem, kuaj electron microscopy (SEM), X-hluav taws xob diffraction (XRD) thiab lwm txoj kev raug siv los soj ntsuam.Results thaum lub caij ntsuas 240-d simulated seawater immersion, qhov saum npoo hla zaj duab xis impedance ntawm intangible TC2 titanium alloy sai sai thaum xub thawj, ces maj mam, thiab corrosion tej zaum tseem nce ntxiv, ces deg deg electrochemical cov tshuaj tiv thaiv poob thiab corrosion tus nqi tsawg.44 ° deformation ntawm TC2 titanium alloy specimen npog passivation membrane impedance tus nqi kom nce me ntsis, tom qab lub caij nplooj ntoos zeeg, tsawg dua qhov pib impedance tus nqi thaum kawg thaum 90% deformation qauv ntub dej hla daim ntawv membrane impedance qhov tseem ceeb poob mus rau poob.Thaum 240 d tom qab soaking, pom tsis hloov ntawm qhov qauv ntawm cov qauv tshwm me me pitting, 45 ° deformation sample surface pitting ceev ceev, 90 ° deformation cracks ntawm cov qauv ntu ntsug compressive kev nyuaj siab kev taw qhia.XRD tau qhia tias kuv ncuase ntawm Ca2 + thiab Mg2 + plasma adsorption ntawm cov deformation tej zaum yuav muaj feem xyuam rau qhov nce ntawm qhov chaw npoo thiab qhov dej ntawm TC2 titanium alloy.Conclusion nyob rau hauv qhov chaw simulated seawater ib puag ncig, cov khoom uas tsis yog-cov pov thawj muaj ib qho kev ua kom muaj zog, qhov saum npoo av zaws zaj duab xis tawg, pitting corrosion nce thiab txawm tawg ntawm TC2 titanium alloy, uas tsub kom txoj kev nyuab siab corrosion rhiab heev ntawm TC2 titanium alloy.