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TECHNICAL PAPERS

Phase Structure and Cyclic Deformation in Eutectic Tin-Lead Alloy: A Numerical Analysis

[+] Author and Article Information
Y.-L. Shen, W. Li

Department of Mechanical Engineering, The University of New Mexico, Albuquerque, NM 87131

H. E. Fang

Sandia National Laboratories, Albuquerque, NM 87185

J. Electron. Packag 123(1), 74-78 (Jun 29, 2000) (5 pages) doi:10.1115/1.1324673 History: Received August 23, 1999; Revised June 29, 2000
Copyright © 2001 by ASME
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References

Wolverton,  W. M., 1987, “The Mechanisms and Kinetics of Solder Joint Degradation,” Brazing and Soldering, 13, pp. 33–38.
Tribula,  D., Grivas,  D., Frear,  D. R., and Morris,  J. W., 1989, “Microstructural Observations of Thermomechanically Deformed Solder Joints,” Welding Journal, 68, pp. 404s–409s.
Lau, J. H., 1991, Solder Joint Reliability: Theory and Applications, Van Nostrand Reinhold, New York.
Frear, D. R., Morgan, H., Burchett, S., and Lau, J., 1994, The Mechanics of Solder Alloy Interconnects, van Nostrand Reinhold, New York.
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Abeyta,  M. C., 1999, “Strength, Microstructural Coarsening, and Localized Plastic Deformation of Eutectic Sn–Pb Alloy,” M.S. Project Report, The University of New Mexico.
Ostrum,  T., 1997, “Aging in Solder Joints from Thermomechanical Loading,” Report of University of Michigan-Dearborn, November, No. 5 (Part II).
Guo,  Z., and Conrad,  H., 1996, “Effect of Microstructure Size on Deformation Kinetics and Thermo-mechanical Fatigue of 63Sn37Pb Solder Joints,” ASME J. Electron. Packag., 118, pp. 49–54.
Lampe,  B. T., 1976, “Room Temperature Aging Properties of Some Solder Alloys,” Welding Journal, 55, pp. 330s–340s.
Cutiongco,  E. C., Vaynman,  S., Fine,  M. E., and Jeannotte,  D. A., 1990, “Isothermal Fatigue of 63Sn-37Pb Solder,” ASME J. Electron. Packag., 112, pp. 110–114.
ASM Handbook, 1990, Vol. 2, 10th ed., ASM International, Materials Park, Ohio.
Bao,  G., Hutchinson,  J. W., and McMeeking,  R. M., 1991, “Particle Reinforcement of Ductile Matrices against Plastic Flow and Creep,” Acta Metall. Mater., 39, pp. 1871–1882.
Shen,  Y.-L., Finot,  M., Needleman,  A., and Suresh,  S., 1994, “Effective Elastic Response of Two-Phase Composites,” Acta Metall. Mater., 42, pp. 77–97.
Shen,  Y.-L., Finot,  M., Needleman,  A., and Suresh,  S., 1995, “Effective Plastic Response of Two-Phase Composites,” Acta Metall. Mater., 43, pp. 1701–1722.

Figures

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Schematics of the (a) fine and (b) coarse structures used in the modeling
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Macroscopic stress–strain response during the first cycle of pure shear loading
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Contours of constant effective plastic strain at the end of the first cycle in pure shear loading, within the (a) Sn-rich phase and (b) Pb-rich phase in the fine structure
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Contours of constant effective plastic strain at the end of the first cycle in pure shear loading, within the (a) Sn-rich phase and (b) Pb-rich phase in the coarse structure
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Variations of the local maximum effective plastic strain with the applied macroscopic strain during the first cycle of pure shear loading
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Macroscopic stress–strain response during the first cycle of uniaxial loading
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Variations of the local maximum effective plastic strain with the applied macroscopic strain during the first cycle of uniaxial loading
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Macroscopic stress–strain response in uniaxial tensile loading, with the Pb-rich phase taken to be a purely elastic inclusion phase and an elastic–plastic inclusion phase with yield strength 40 MPa

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