Effect of Heat Index on Microstructure and Mechanical Behavior of Friction Stir Processed AZ31

Abstract

Friction stir processing modifies the microstructure and properties of metals through intense plastic deformation. the frictional heat input affects the microstructure evolution and resulting mechanical properties. 2 mm thick commercial AZ31B-H24 Mg alloy was friction stir processed under various process parameter combinations to investigate the effect of heat index on microstructure and properties. Recrystallized grain structure in the nugget region was observed for all processing conditions with decrease in hardness. Results indicate a reduced tensile yield strength and ultimate tensile strength compared to the as-received material in C-temper, but with an improved hardening capacity. the strain hardening behavior of friction stir processed material is discussed.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Anisotropy; Friction stir processing; Heat index; Tensile behavior; Work hardening

International Standard Book Number (ISBN)

978-111802936-7

International Standard Serial Number (ISSN)

1545-4150

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Wiley, All rights reserved.

Publication Date

01 Jan 2011

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