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Abstract

This chapter discusses the effects of metallurgical variables on dealloying corrosion. It begins by describing the processes involved in dealloying of metal alloys in aqueous environments. This is followed by a discussion on the morphology of porous dealloyed structures below and above the critical potential. Some features experimentally observed for dealloying systems are then considered. The chapter concludes by briefly reviewing the proposed mechanisms for the formation of porous metals, namely ionization-redeposition mechanism, surface diffusion mechanism, volume diffusion mechanism, and percolation model of selective dissolution.

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Effects of Metallurgical Variables on Dealloying Corrosion, Corrosion in the Petrochemical Industry, 2nd ed., Edited By Victoria Burt, ASM International, 2015, p 82–88, https://doi.org/10.31399/asm.tb.cpi2.t55030082

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