Electro-dissolution of the Bi second phase in Sn5Bi solder alloy

Tsung Chieh Chiu; Ying Ta Chiu; Kwang Lung Lin

doi:10.1016/j.matlet.2015.07.131

Electro-dissolution of the Bi second phase in Sn5Bi solder alloy

Tsung Chieh Chiu, Ying Ta Chiu, Kwang Lung Lin

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

10 Citations (Scopus)

Abstract

This study investigated the electro-dissolution, supersaturation and recrystallization of the second phase Bi in the Sn5Bi solder under 4.0×10³-6.0×10³ A/cm² current stressing at 25 °C. The ex-situ XRD analysis of the current stressed specimen, after being quenched with liquid nitrogen, reveals a reduction of the Bi orientation peaks. The SEM investigation shows the dissolution and supersaturation of the Bi phase during current stressing. The in-situ SEM investigation reveals that recrystallization of the Bi phase occurred in the unquenched specimen when the current stopped. The kinetics of the electro-dissolution were analyzed, and the results showed that the maximum dissolution rate occurred during the progress of current stressing.

Original language	English
Pages (from-to)	309-313
Number of pages	5
Journal	Materials Letters
Volume	160
DOIs	https://doi.org/10.1016/j.matlet.2015.07.131
Publication status	Published - 2015 Dec 1

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2015.07.131

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title = "Electro-dissolution of the Bi second phase in Sn5Bi solder alloy",

abstract = "This study investigated the electro-dissolution, supersaturation and recrystallization of the second phase Bi in the Sn5Bi solder under 4.0×103-6.0×103 A/cm2 current stressing at 25 °C. The ex-situ XRD analysis of the current stressed specimen, after being quenched with liquid nitrogen, reveals a reduction of the Bi orientation peaks. The SEM investigation shows the dissolution and supersaturation of the Bi phase during current stressing. The in-situ SEM investigation reveals that recrystallization of the Bi phase occurred in the unquenched specimen when the current stopped. The kinetics of the electro-dissolution were analyzed, and the results showed that the maximum dissolution rate occurred during the progress of current stressing.",

author = "Chiu, {Tsung Chieh} and Chiu, {Ying Ta} and Lin, {Kwang Lung}",

note = "Funding Information: The authors would like to thank the Ministry of Science and Technology, Taiwan , for the financial support of this study under Grant NSC 101-2221-E-006-117-MY3 . Publisher Copyright: {\textcopyright} 2015 Elsevier B.V. All rights reserved.",

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doi = "10.1016/j.matlet.2015.07.131",

language = "English",

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journal = "Materials Letters",

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TY - JOUR

T1 - Electro-dissolution of the Bi second phase in Sn5Bi solder alloy

AU - Chiu, Tsung Chieh

AU - Chiu, Ying Ta

AU - Lin, Kwang Lung

N1 - Funding Information: The authors would like to thank the Ministry of Science and Technology, Taiwan , for the financial support of this study under Grant NSC 101-2221-E-006-117-MY3 . Publisher Copyright: © 2015 Elsevier B.V. All rights reserved.

PY - 2015/12/1

Y1 - 2015/12/1

N2 - This study investigated the electro-dissolution, supersaturation and recrystallization of the second phase Bi in the Sn5Bi solder under 4.0×103-6.0×103 A/cm2 current stressing at 25 °C. The ex-situ XRD analysis of the current stressed specimen, after being quenched with liquid nitrogen, reveals a reduction of the Bi orientation peaks. The SEM investigation shows the dissolution and supersaturation of the Bi phase during current stressing. The in-situ SEM investigation reveals that recrystallization of the Bi phase occurred in the unquenched specimen when the current stopped. The kinetics of the electro-dissolution were analyzed, and the results showed that the maximum dissolution rate occurred during the progress of current stressing.

AB - This study investigated the electro-dissolution, supersaturation and recrystallization of the second phase Bi in the Sn5Bi solder under 4.0×103-6.0×103 A/cm2 current stressing at 25 °C. The ex-situ XRD analysis of the current stressed specimen, after being quenched with liquid nitrogen, reveals a reduction of the Bi orientation peaks. The SEM investigation shows the dissolution and supersaturation of the Bi phase during current stressing. The in-situ SEM investigation reveals that recrystallization of the Bi phase occurred in the unquenched specimen when the current stopped. The kinetics of the electro-dissolution were analyzed, and the results showed that the maximum dissolution rate occurred during the progress of current stressing.

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SN - 0167-577X

VL - 160

SP - 309

EP - 313

JO - Materials Letters

JF - Materials Letters

ER -

Electro-dissolution of the Bi second phase in Sn5Bi solder alloy

Abstract

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