Aqueous corrosion of metal matrix composites

Pradeep K. Rohatgi, Chongchen Xiang, Nikhil Gupta

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Metal matrix composites (MMCs) are increasingly being used in engineering applications. Evolution of mechanical properties and structural integrity over a long period of service life is of great interest for composites. This chapter discusses the corrosion behavior of composites of aluminum, magnesium, titanium, lead, and zinc. Aluminum, magnesium, and titanium are a group of light metals that are of great interest to structural, transportation, and aerospace applications. Their corrosion behavior in long-term usage is of great interest to current and potential application. Lead and zinc are heavy metals, which are used in engineering applications and in galvanic protection of steel. Composites of these metals with high mechanical properties are synthesized to reduce structural weight. In composites, the presence of reinforcement causes formation of a galvanic couple, where either reinforcement or the matrix may preferentially corrode. In addition, the corrosion may be accelerated by environmental factors, such as aeration, salt, and temperature. Corrosion mechanisms and possible solutions are discussed in this chapter.

Original languageEnglish (US)
Title of host publicationComprehensive Composite Materials II
PublisherElsevier
Pages287-312
Number of pages26
ISBN (Electronic)9780081005330
ISBN (Print)9780081005347
DOIs
StatePublished - Jan 1 2017

Keywords

  • Aerospace applications
  • Aluminum
  • Corrosion behavior of composites
  • Corrosion fatigue cracking
  • Corrosion mechanisms
  • Dissolution
  • Hydrogen induced cracking
  • Leaching
  • Magnesium
  • Reactive phases
  • Stress corrosion cracking
  • Structural
  • Titanium
  • Transportation

ASJC Scopus subject areas

  • General

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