Corrosion mechanism of Mo/Nd16Fe71B13/Mo film in a simulated marine atmosphere
Source abstract
Abstract
This study describes the corrosion mechanism of Mo/Nd(16)Fe(71)B(13)/Mo film induced by sodium chloride particles in 80% relative humidity (RH) environment. The deliquescence of sodium chloride particles on the Mo/Nd(16)Fe(71)B(13)/Mo film caused the step by step attacks. Initial loosening of the Mo layer allows permeation of electrolyte into Nd-Fe-B layer, resulting in cavitations of electrolyte and subsequent film failure. The second failure step involves corrosion of Nd element in the Nd-Fe-B layer, with Fe element remaining beneath the corrosion product. Corrosion of Fe constitutes the third-step failure, forming a mixture of Nd and Fe corrosion product. (C) 2011 Elsevier Ltd. All rights reserved.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties of Alloys · Hydrogen Storage and Materials · Magnesium Alloys: Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. New material for permanent magnets on a base of Nd and Fe10.1063/1.333572 ↗
2. Pr–Fe and Nd–Fe based material: a new class of high-performance permanent magnets10.1063/1.333571 ↗
3. Crystallization of FeB alloys with rare earth to produce hard magnetic materials10.1063/1.333568 ↗
4. R2Fe14B materials: intrinsic properties and technological aspects10.1103/RevModPhys.63.819 ↗
5. Top Nd–Fe–B magnets with greater than 56MGOe energy density and 9.8kOe coercivity10.1109/TMAG.2002.803075 ↗
6. Magnetic properties of Er2Fe14B and Nd2Fe14B thin films10.1063/1.338444 ↗
7. Magnetic properties of c-axis textured Nd2Fe14B thin films10.1109/20.538894 ↗
8. Anisotropic Nd–Fe–B thin-film magnets for milli-size motor10.1063/1.349879 ↗
9. Micro patterning of thin Nd–Fe–B films10.1016/0304-8853(94)01705-0 ↗
10. Growth, microstructure, and magnetic properties of highly textured and highly coercive Nd–Fe–B films10.1103/PhysRevB.70.144418 ↗
11. Structure, magnetic properties and coercivity mechanism of the Mo-spacered Nd2Fe14B/α-Fe textured multilayer films10.1063/1.2973688 ↗
12. Structure, magnetic properties and coercivity mechanism of the Mo-spacered Nd2Fe14B/α-Fe textured multilayer films10.1088/0022-3727/41/24/245007 ↗
13. Corrosion behaviour of Nd–Fe–B permanent magnetic alloys10.1016/S0921-5093(99)00107-0 ↗
14. Passivity and its breakdown of sintered NdFeB-based magnets in chloride containing solution10.1016/j.corsci.2003.12.002 ↗
15. Corrosion of highly coercive, highly textured Nd–Fe–B films10.1109/TMAG.2003.815756 ↗
16. XPS and AES investigations of hard magnetic Nd–Fe–B films10.1016/j.apsusc.2005.02.021 ↗
17. Improved perpendicular anisotropy and permanent magnet properties in co-doped Nd–Fe–B films multilayered with Ta10.1109/TMAG.2005.854868 ↗
18. Overlayer-induced anisotropic alignment of Nd2Fe14B nanograins10.1063/1.1360234 ↗
19. Scanning Kelvin probe analysis of the potential distribution under small drops of electrolyte10.1002/(SICI)1521-4176(199808)49:8<569::AID-MACO569>3.0.CO;2-V ↗
20. In situ studies of filiform corrosion of iron10.1149/1.1645263 ↗
21. Formation and growth of micro-droplets during the initial stage of atmospheric corrosion10.1016/j.electacta.2004.01.032 ↗
22. Electrochemical investigations of micro-droplets formed on metals during the deliquescence of salt particles in atmosphere
23. Rate-determining reactions of atmospheric corrosion10.1016/j.electacta.2004.01.066 ↗
24. The initiation mechanism of corrosion of zinc by sodium chloride particle deposition10.1016/S0010-938X(01)00056-7 ↗