Corrosion Behavior of V2AlC and Cr2AlC
MAX phase Materials in 0.01N NaCl |
This work involves the manufacturing of
MAX phase materials include V2AlC and Cr2AlC using powder
metallurgy as a new class of materials which characterized by
regular crystals in lattice. Corrosion behavior of these
materials was investigates by Potentiostat to estimate corrosion
resistance in 0.01N of NaCl at four temperatures in the range of
30–60oC. The results of corrosion resistance indicate that
Cr2AlC has more resistance than V2AlC in experimental
electrolyte due to protective film of α-Al2O3 and Cr2O3 which
are formed on the surface, and both MAX materials are more
resistance than SS 316L (which acts as the most corrosion
resistance alloy), i.e., the new class of materials which refer
to MAX have good corrosion resistance in addition to good
thermal, physical, electrical and mechanical properties that
reviewed in many literatures. Cyclic polarization test exhibits
no chance to pitting corrosion in MAX phase materials in 0.01N
NaCl solution. Optical microscopy confirms the good corrosion
resistance of Cr2AlC compared with V2AlC material. |
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