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Journal of Materials Engineering and Performance

Erschienen in:

11.04.2019

Effect of Tool Pin Eccentricity on the Microstructure and Mechanical Properties of Friction Stir Processed Al-6061 Alloy

verfasst von: Yu Chen, He Wang, Hua Ding, Jingwei Zhao, Fenghe Zhang, Zhaohui Ren

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 5/2019

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Abstract

Three different stir tools with the pin eccentricity of 0, 0.4 and 0.8 mm were applied to the friction stir processing (FSP) of Al-6061 alloy. Results show that the pin-affected zone (PAZ) enlarges and the grain size in the stir zone (SZ) decreases as the pin eccentricity increases. Moreover, the low peak FSP temperature induced by the pin eccentricity gives rise to the coarsening of strengthening precipitates in the SZ. Compared with the pin-eccentric FSP samples, the SZ produced without pin eccentricity exhibits the highest hardness and yield strength due to the high amount of fine precipitates. However, the application of pin eccentricity elevates the overall tensile properties of FSP samples through changing the failure location from heat-affected zone (HAZ) to SZ.

Vorheriger Artikel Drawing Direction Effect on Microstructure and Mechanical Properties of Twinning-Induced Plasticity Steel During Wire Drawing

Nächster Artikel An Investigation of the Wear Performance of Aged Inconel 718 Superalloy by the Fuzzy Logic Approach

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Titel: Effect of Tool Pin Eccentricity on the Microstructure and Mechanical Properties of Friction Stir Processed Al-6061 Alloy
verfasst von: Yu Chen
He Wang
Hua Ding
Jingwei Zhao
Fenghe Zhang
Zhaohui Ren
Publikationsdatum: 11.04.2019
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 5/2019
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-019-04025-y

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