Dab tsi yog Hom Corrosion Ntawm GR5 Titanium Alloy?

1, corrosion kuj

Nyob rau hauv cov hlau tivthaiv crevice los yog tsis xws luag, vim electrolyte stagnation yog ib tug electrochemical roj teeb thiab ua rau lub zos corrosion tshwm sim, nyob rau hauv nruab nrab thiab acidic tov, titanium alloy crevice ntawm qhov tshwm sim ntawm kev sib cuag corrosion yog ntau dua li cov tshuaj alkaline, kev sib cuag corrosion tsis. tshwm sim nyob rau hauv tag nrho saum npoo ntawm lub crevice, tab sis ua rau lub zos perforation puas.

2, Pitting phenomenon

Titanium nyob rau hauv feem ntau cov ntsev tov tsis muaj pitting tshwm sim, uas tshwm sim nyob rau hauv tsis-aqueous daws thiab boiling heev concentrated chloride tov, halogen ions nyob rau hauv cov kev daws ntawm titanium nto passivation zaj duab xis corrosion, thiab diffusion rau titanium sab hauv pitting tshwm sim, pitting aperture yog me dua. nws qhov tob. Qee cov organic media kuj tseem yuav yog thiab titanium alloy pitting tshwm sim hauv cov tshuaj halogen, titanium alloy pitting nyob rau hauv halogen tov feem ntau tshwm sim nyob rau hauv siab concentration thiab kub ib puag ncig, ntxiv rau, nyob rau hauv sulfide thiab chloride pitting yuav tsum tau tshwj xeeb tej yam kev mob thiab txwv.

3, Hydrogen embrittlement

Hydrogen embrittlement (HE), tseem hu ua hydrogen cracking los yog hydrogen puas, yog ib qho ntawm cov laj thawj rau kev ua tsis tiav thaum ntxov ntawm titanium alloys, titanium thiab nws cov titanium alloy nto ntawm cov zaj duab xis passivation muaj lub zog siab, hydrogen embrittlement rhiab heev nce nrog kev siv, yog li cov zaj duab xis passivation hydrogen embrittlement yog rhiab heev.

4, Tiv thaiv corrosion

Lub passivated oxide zaj duab xis nyob rau saum npoo ntawm titanium txhawb nqa lub peev xwm titanium kom txav mus rau qhov muaj peev xwm zoo, uas txhim kho qhov tsis kam ntawm titanium rau corrosion los ntawm acidic thiab aqueous media. Vim tias muaj peev xwm ntau dua ntawm qhov saum npoo ntawm titanium alloy, nws raug khi ua rau kev sib cuag corrosion nrog lwm cov hlau hauv kev sib cuag nrog kev tsim ntawm electrochemical circuits thiab ua rau kev sib cuag corrosion. Titanium alloys raug cuam tshuam rau kev tiv thaiv corrosion hauv ob hom xov xwm hauv qab no:

Tshuaj muaj pes tsawg leeg

Mechanical Properties: Bar