elements, driven by an applied tensile stress. The source of the embrittling element can be the alloy itself (e.g., sulfur in steel and tin in Cu-Sn alloys) or the surrounding environment (e.g., oxygen in Cu-Be or in nickel-base alloys). Liquid-metal-induced cracking is thought to be a form of dynamic embrittlement, but this has not yet been demonstrated satisfactorily. ACKNOWLEDGEMENTS The work reviewed here was supported by the National Science Foundation under grants no. DMR 96-34718 and CMS 95-03980 and by the U.S. Department of Energy under grants no. CR-19314-429146. References 1. Bika, D. and McMahon, C. J. Jr. (1995). Acta Metall. 43, 1909. 2. Liu, C. T.and White, C. L. (1987) .Acta Metall. 35, 643. 3. Shin, J. and McMahon, C. J. Jr. (1984) Acta Metall., 32, 1535. 4. Hull, D. and Rimmer, D. E. (1959) Philos. Mag., 4, 673. 5. Barrera, E. V., Menyhard, M., Bika, D., Rothman, B. and McMahon, C. J. Jr., (1992) Scripta Metall., 27, 205. 6. Hofmann, S. and Erlewien, J. (1976) Scripta Metall. 10, 857. 7. Steven, W. and Balajiva, K. (1959) J. Iron Steel Inst. 193, 141. 8. Kanno, M. and Shimodaira, N. (1987) Trans. Japan Inst. of Metals,28, 742. 9. Metals Handbook, American Society for Metals, (1948) p. 860. 10. Muthiah, R. C., Pfaendtner, J. A., Ishikawa, S. and McMahon, C. J. Jr., Acta Mater. 47 (1999) 2797. 11. Woods, Seamus S. and McMahon, C. J. Jr., (2001) submitted for publication. 12. Palumbo, G., Lehockey, E. M. and Lin, P. JOM 50(2) 40 (1998). 13. Was, G. S. Thaveeprungsriporn, V. and Crawford, D. C. JOM 50(2) 44 (1998). 14. Kumar, M., King, W. E. and Schwartz, A. J. Acta Materialia, 48 2081 (2000). 15. Guha, A. Brush-Wellman Inc., private communication 1993 16. Chang, K-M, Henry, M. F. and Benz, M. G. (1990), JOM, 42, 29. 17. Pfaendtner,. J. A. and McMahon, C. J. Jr, (2001) Acta Mater. in press. 18. Molins, R. Hochstetter, G. Chassaigne, J.C. and Andrieu, E. (1997) Acta Metall. 45 663. 19. Lerner, Jeffrey, Woods, Seamus S., Peng, Edward and McMahon, C. J. Jr. (2001) submitted for publication. 20. Lerner, Jeffrey and McMahon, C. J. Jr. (2001) submitted for publication. 21. Shin, K. S. and Meshii, M. (1983) Scripta Metall. 17, 1121.
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