Dissolution behavior, metal-matrix

Secondly, the corrosion of an Mg alloy is the result of anodic dissolution of the matrix phase. The other phases in the alloy are relatively inert. However, their presence can significantly influence the dissolution of the matrix phase. Hence the chemical composition, the amount and the distribution of the other phases all play an important role in the corrosion of the alloy. Following this theory, the corrosion behavior of a Mg alloy is predictable after the electrochemistry of each phase constituent in the alloy is understood. For the same reason, the corrosion performance of an Mg alloy can be improved by modifying its chemical composition and microstructure through a metallurgical approach. Currently, the development of innovative alloys, including metallic glasses, is based on this idea. 

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