Stress corrosion of the Mg-Zn-Zr alloy system using C-ring tests

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

This study focuses on the stress corrosion behavior of the Mg-Zn-Zr alloy system in extruded condition (tubes). The binary alloys Mg-Zn and Mg-Zr are compared to the ternary alloy system regarding microstructure, hardness, bending strength and corrosion behavior. C-ring tests in Ringer solution are used to evaluate the stress corrosion properties. POM polymer, being corrosion resistant and neutral to the Mg-corrosion, was chosen to build up the test set-up for the C-ring tests. Bending tests have been done to determine the elastic-plastic region of the samples - before starting the C-ring experiments. Twinning as a result of deformation increases the corrosion rate and is most prominent at the Mg-Zr alloy. Signs of pitting corrosion to different extents have been found in all alloys investigated. The Mg-Zn alloy corrodes the most within this alloy group. Plastic deformation is increasing the corrosion, however, signs of stress corrosion cracking could not be found.

Original languageEnglish
Title of host publicationMS and T 2019 - Materials Science and Technology 2019
Number of pages8
PublisherMaterials Science and Technology (MS&T)
Publication date2019
Pages1142-1149
ISBN (print)9780873397704, 0873397703
DOIs
Publication statusPublished - 2019
Externally publishedYes
EventTechnical Meeting and Exhibition on Materials Science and Technology - MS & T 2019 - Portland, United States
Duration: 29.09.201903.10.2019
https://www.matscitech.org/MST19/

    Research areas

  • C-ring test, Corrosion morphology, Magnesium, Mg-Zn-Zr, Stress corrosion
  • Engineering