Effect of Weld Seams on Corrosion Following Porthole Die Extrusion of Aluminum Tubes

So, Yoon-Sik; Lim, Jeong-Min; Kim, Jung-Gu

doi:10.1007/s12540-023-01562-z

Met. Mater. Int.

2023

DOI: 10.1007/s12540-023-01562-z

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Effect of Weld Seams on Corrosion Following Porthole Die Extrusion of Aluminum Tubes

Yoon-Sik So,

Jeong-Min Lim,

Jung-Gu Kim

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2024

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Cited by 1 publication

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Development of Accelerated Galvanic Corrosion Testing for Evaluating Heat Exchanger Corrosion Penetration Lifespan

Park,

Lim,

Kim

et al. 2024

Corrosion

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A new lifespan evaluation method, Accelerated Galvanic Corrosion Testing (AGCT), was developed for evaluating the lifespan of aluminum heat exchangers during the materials development stage. AGCT effectively accelerated corrosion by adjusting the polarization magnitude, which aligns with the polarization direction of sacrificial anode cathodic protection (SACP). Increasing the zinc content in the fin alloy (1.8, 2.2, 2.6, 3.0 wt.%) enhanced the SACP effect, with a 3.0 wt.% Zn resulting in a 49% increase in the penetration lifespan of the heat exchanger. Galvanic simulation has confirmed that protection of the tube and filler is provided at zinc contents of 2.2 wt.% or higher, but there is evidence of overprotection at 3.0 wt.% Zn. Therefore, the optimal zinc content of fin was determined to be 2.6 wt.%, which is expected to improve the heat exchanger penetration lifespan by up to 43%.

show abstract

Development of Accelerated Galvanic Corrosion Testing for Evaluating Heat Exchanger Corrosion Penetration Lifespan

Park,

Lim,

Kim

et al. 2024

Corrosion

View full text Add to dashboard Cite

show abstract

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Effect of Weld Seams on Corrosion Following Porthole Die Extrusion of Aluminum Tubes

Cited by 1 publication

References 52 publications

Development of Accelerated Galvanic Corrosion Testing for Evaluating Heat Exchanger Corrosion Penetration Lifespan

Development of Accelerated Galvanic Corrosion Testing for Evaluating Heat Exchanger Corrosion Penetration Lifespan

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