• Șutic, Alexandra-Tamara
• Zegan, Georgeta
• Chelariu, Romeu
• Alexandru, Adrian
• Roman, Ana-Maria
• Benchea, Marcelin
• Istrate, Bogdan
• Goanta, Viorel
• Cimpoeşu, Nicanor
• Cimpoesu, Ramona
• Moscu, Mihaela

Abstract

<jats:p>The influence of the chemical composition and structural state of Zn–Ti alloys on corrosion behaviour and mechanical properties was studied. Zn-based alloys were investigated, more precisely, pure technical Zn and Zn with 0.10, 0.25 and 1.00 wt.% Ti. The microstructure and chemical composition of these materials were analysed using light optical microscopy (LOM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). The chemical composition of the alloys and the surface after immersion were analysed using an EDS detector from Bruker. The alloys’ electro-chemical corrosion resistance was further investigated through linear (LP) and cyclic (CP) potentiometry and open-circuit potential (OCP) analysis. A tensile/compression equipment (Instron 34SC-5) was used to determine the compression behaviour. UMT testing equipment was used to determine microhardness (by Rockwell indentation) and COF vs. length. For percentages higher than 0.25 wt.% Ti, the formation of a primary TiZn16 intermetallic compound in the (α-Zn + TiZn16) eutectic matrix was observed, a slight influence of TiZn16 on the Zn corrosion resistance results, and a greater influence on the mechanical properties was confirmed.</jats:p>

Topics

• surface
• compound
• corrosion
• scanning electron microscopy
• x-ray diffraction
• chemical composition
• Energy-dispersive X-ray spectroscopy
• intermetallic
• optical microscopy
• potentiometry