Effect of brazing parameters on fillet size and microstructure of cladded fin-microchannel tube joints

Guía-Tello, J.C.; Pech‐Canul, M. A.; Trujillo-Vázquez, E.

doi:10.1016/s1003-6326(20)65457-7

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2024

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Cited by 3 publications

References 25 publications

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Hot Deformation Behavior and Post-brazing Grain Structure of Dilute Al–(Sc–Zr) Alloys for Brazed Heat Exchangers

Bakr,

Rometsch,

Chen

2024

The Minerals, Metals &Amp; Materials Series

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Hot Deformation Behavior and Post-brazing Grain Structure of Dilute Al–(Sc–Zr) Alloys for Brazed Heat Exchangers

Bakr,

Rometsch,

Chen

2024

The Minerals, Metals &Amp; Materials Series

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Assessment of the Possibility of Galvanic Corrosion in Aluminum Microchannel Heat Exchangers

Lachowicz

Gertruda³

2022

Crystals

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As part of the work, three used microchannel heat exchangers from different manufacturers were analyzed. For comparison purposes, the new heat exchanger was also subjected to the NSS salt spray test. The material of the Al-Si system used for brazing, as well as the material of the core, were subjected to electrochemical tests. In laboratory tests, polarization curves were determined for the Al-Si material used for brazing, as well as for the core material. On the basis of exchanger research, it was found that a critical problem in the use of microchannel exchangers is galvanic corrosion occurring in the areas of brazed joints. Electrochemical tests have shown that the Al-Si alloy used for brazing has a lower value of corrosion potential than the core material. The existing potential difference is sufficient for galvanic corrosion. Electrochemical corrosion is initiated in the eutectic structure. The soplid solution is the anode and is particularly susceptible to corrosion, which led to its preferential dissolution in the entire volume of the eutectic mixture.

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Estimation of Brazing Temperature in Aluminium Heat Exchangers by Using Alpha Phase Measurement Techniques

Singh¹,

Guruprasanna²,

Kumar³

et al. 2022

SAE Technical Paper Series

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Effect of brazing parameters on fillet size and microstructure of cladded fin-microchannel tube joints

Cited by 3 publications

References 25 publications

Hot Deformation Behavior and Post-brazing Grain Structure of Dilute Al–(Sc–Zr) Alloys for Brazed Heat Exchangers

Hot Deformation Behavior and Post-brazing Grain Structure of Dilute Al–(Sc–Zr) Alloys for Brazed Heat Exchangers

Assessment of the Possibility of Galvanic Corrosion in Aluminum Microchannel Heat Exchangers

Estimation of Brazing Temperature in Aluminium Heat Exchangers by Using Alpha Phase Measurement Techniques

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