Abstract
This study detailed the atmospheric corrosion behaviour of sintered NdFeB(M35) in a simulated marine atmosphere with 80% relative humidity(RH).The dissolution and subsequent reaction of NaCl particles cause the attack of NdFeB.The corrosion presented three representative types:if the electrolyte covered magnetic phase and Nd-rich phase,the Nd-rich phase was corroded firstly due to galvanic effect;if the electrolyte covered magnetic phase,magnetic phase was corroded along the grain boundary;if the electrolyte located near the position of defects,corrosion progressed along with the defect because of low concentration of oxygen inside the defect.With corrosion progressing,local corrosion areas were mutually connected,with Nd-rich phase and grain boundary being corroded first,magnetic phase was corroded subsequently.
Keywords
NdFeB(M35), simulated marine atmosphere, in-situ observation
Publication Date
2010-11-28
Online Available Date
2010-11-28
Revised Date
2010-11-28
Received Date
2010-11-28
Recommended Citation
Chun-ling LI, Yuan-tai MA, Ying LI, Fu-hui WANG.
Initial Stage of Atmospheric Corrosion of NdFeB(M35) in A Simulated Marine Atmosphere[J]. Journal of Electrochemistry,
2010
,
16(4): 406-410.
DOI: 10.61558/2993-074X.2061
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol16/iss4/7
Included in
Computational Chemistry Commons, Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons
