Corrosion behavior and mechanism of selective laser melted Ti35Nb alloy produced using pre-alloyed and mixed powder in Hank's solution

P. Qin, L. Y. Chen, C. H. Zhao, Y. J. Liu, C. D. Cao, H. Sun, L. C. Zhang

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54 Citations (Scopus)

Abstract

This work investigated the corrosion behavior and mechanism of selective laser melted (SLM) Ti35Nb separately using mixed powder (Ti35Nb-M) and pre-alloyed powder (Ti35Nb-P) in Hank's solution. Both types of samples demonstrate similar corrosion behavior, and double-layered oxide films form on the TiNb regions in both Ti35Nb-M and Ti35Nb-P. However, Ti35Nb-P has more stable oxide films than Ti35Nb-M because the outer porous oxide layer formed on Ti35Nb-P has smaller thickness and less defects according to Mott-Schottky analysis. Distinct oxide films also form on the TiNb and Nb regions in Ti35Nb-M due to unmelted Nb particles.

Original languageEnglish
Article number109609
JournalCorrosion Science
Volume189
DOIs
Publication statusPublished - 15 Aug 2021
Externally publishedYes

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