Optimization of pitting corrosion resistance of TC4-30Zr alloy by laser surface remelting

• DOI: 10.1016/j.jmrt.2023.09.181
• Publication Date: 2023-09-23T15:30:09Z
• Authors: X.J. Jiang; Y.G. Meng; J.T. Zhang; X.Y. Zhang; L.S. Jiao; H.B. Qi
• Keywords: Passivation; Texture (cosmology); Pitting Corrosion; Crystal (programming language)

The effect of laser surface remelting (LSR) on pitting corrosion behavior TC4-30Zr alloy was investigated. results showed that the α/α' phase transformed into β after LSR. grain refined and (110) crystal plane texture produced. At same time, nano-twins appeared. content TiO2 ZrO2 in passivation film increased, thickness increased by 4.12 times. generation reduced sensitivity reducing energy increasing vacancy density film.