Reducing corrosion of additive manufactured magnesium alloys by interlayer ultrasonic peening

M. P. Sealy; R. Karunakaran; S. Ortgies; G. Madireddy; A. P. Malshe; K. P. Rajurkar

doi:10.1016/j.cirp.2021.04.052

Reducing corrosion of additive manufactured magnesium alloys by interlayer ultrasonic peening

M. P. Sealy, R. Karunakaran, S. Ortgies, G. Madireddy, A. P. Malshe, K. P. Rajurkar

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Additive manufad (AM) magn alloys corrode rapidly due to tensile stress and coarse microstructures. Cyclically combining (hybridizing) additive manufacturing with interlayer ultrasonic peening was proposed as a solution to improve corrosion resistance of additive manufactured magnesium WE43 alloy through strengthening mechanisms and compressive residual stress. Applying interlayer peening work hardened discrete layers and formed a glocal integrity of regional grain refinement and subsurface compressive residual stress barriers. Tensile residual stress that typically accelerates corrosion decreased 90%. Results showed time-resolved control over corrosion was attainable by interlayer peening, and local corrosion within print cells decreased 57% with respect to as-printed WE43.

Original language	English (US)
Pages (from-to)	179-182
Number of pages	4
Journal	CIRP Annals
Volume	70
Issue number	1
DOIs	https://doi.org/10.1016/j.cirp.2021.04.052
State	Published - Jan 2021

Keywords

Additive manufacturing
Hybrid manufacturing
Magnesium

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.cirp.2021.04.052

Cite this

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abstract = "Additive manufad (AM) magn alloys corrode rapidly due to tensile stress and coarse microstructures. Cyclically combining (hybridizing) additive manufacturing with interlayer ultrasonic peening was proposed as a solution to improve corrosion resistance of additive manufactured magnesium WE43 alloy through strengthening mechanisms and compressive residual stress. Applying interlayer peening work hardened discrete layers and formed a glocal integrity of regional grain refinement and subsurface compressive residual stress barriers. Tensile residual stress that typically accelerates corrosion decreased 90%. Results showed time-resolved control over corrosion was attainable by interlayer peening, and local corrosion within print cells decreased 57% with respect to as-printed WE43.",

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AU - Sealy, M. P.

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AU - Madireddy, G.

AU - Malshe, A. P.

AU - Rajurkar, K. P.

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AB - Additive manufad (AM) magn alloys corrode rapidly due to tensile stress and coarse microstructures. Cyclically combining (hybridizing) additive manufacturing with interlayer ultrasonic peening was proposed as a solution to improve corrosion resistance of additive manufactured magnesium WE43 alloy through strengthening mechanisms and compressive residual stress. Applying interlayer peening work hardened discrete layers and formed a glocal integrity of regional grain refinement and subsurface compressive residual stress barriers. Tensile residual stress that typically accelerates corrosion decreased 90%. Results showed time-resolved control over corrosion was attainable by interlayer peening, and local corrosion within print cells decreased 57% with respect to as-printed WE43.

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Reducing corrosion of additive manufactured magnesium alloys by interlayer ultrasonic peening

Abstract

Keywords

ASJC Scopus subject areas

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