Journal
CORROSION SCIENCE
Volume 156, Issue -, Pages 147-160Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2019.05.005
Keywords
Ag-based contact materials; MAX phases; Electric arc corrosion; Microstructure; Oxidation
Funding
- National Natural Science Foundation of China [51731004, 51671054, 51501038]
- Natural Science Foundation of Jiangsu Province [BK20181285]
- Fundamental Research Funds for the Central Universities in China [2242018K40108, 2242018K40109]
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The Ag/10 wt%Ti3AlC2 (Ag/10TAC) composite exhibits excellent arc resistance and potential application in various industries. To understand its corrosion mechanism, dynamic electric arc discharge was conducted on the Ag/10TAC surface. The Ag matrix was subjected to melting, vaporization, deposition, absorption, and diffusion, resulting in chemical reactions and various morphologies. The Ti3AlC2 was degraded by a rapid decomposition oxidation. The degradation of the Ag/lOTAC composite is attributed to the changes in structure and function on the contact surfaces. The present study facilitates the design, performance optimization, and failure analysis of Ag/M(n+1)AX(n) (Ag/MAX) composites.
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