Abstract
This study focuses on the application of friction stir processing (FSP) on a rare earth based WE43 magnesium alloy aiming to improve microstructure and corrosion resistance. Ultra-refined microstructure with an average grain size of 4 um was obtained due to plastic deformation in the FSPed specimen. Corrosion rate determined from Tafel extrapolation results for WE43 base alloy and FSPed samples are 2.31 mmpy and 0.938 mmpy respectively. The FSPed specimen showed improvement in corrosion behavior with increased uniformity in the protective passive layer and decreased occurrence of micro-galvanic coupling (pitting corrosion), which can be ascribed to the redistribution and fragmentation of second-phase particles.
| Original language | English |
|---|---|
| Article number | 135934 |
| Journal | Materials Letters |
| Volume | 359 |
| DOIs | |
| State | Published - 15 Mar 2024 |
Bibliographical note
Publisher Copyright:© 2024 Elsevier B.V.
Keywords
- Corrosion
- Friction stir processing
- Microstructure
- Rare-earth Mg alloy
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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