DISCONTINUOUS PRECIPITATION IN METALLIC ALLOYS

DISCONTINUOUS PRECIPITATION IN METALLIC ALLOYS

Discontinuous precipitation is a solid state phase transformation. It is generally formed at grain boundaries. This paper presents a literature review on the previous investigations of discontinuous precipitation in metallic alloys. The mechanism of the occurrence and growth of this reaction is presented. In addition, the main parameters which affect its mechanism are listed. The future research questions will be formulated.

___

  • 1. Gust, W, in “Phase transformation”, The Institution of Metallurgists, London, 1979. Vol. 1, p. II/27. 2. Williams, DB, and Butler, EP., Grain boundary discontinuous precipitation reactions. Int Mater Rev., 1981, 3:153–183. 3. Zieba, P, Recent developments on discontinuous precipitation, Arch. Metall. Mater. 2017, 62,2, 955-968. 4. Cahn, JW, The kinetics of cellular segregation reactions. Acta Metall., 1959, 7:18–28. 5. Solorzano IG, Purdy GR, Weatherly GC., Studies of the initiation, growth and dissolution of discontinuous precipitation product in aluminum-zinc alloys. Acta Metall, 1984, 32:1709–1717 6. Manna, I. Pabi, S.K., and Gust, W. Discontinuous reactions in solids, International Materials Reviews, 2001, 46, 2. 7. Suguihiro, N.M. Solorzano, I.G. On the initiation, growth, and coarsening of discontinuous precipitation in Cu-10 at.% Co alloy , J. Mater. Sci., 2016, 51:71–81. 8. Zieba P, and Gust, W., Analytical electron microscopy of discontinuous solid state reactions. Int Mater Rev.,1998, 43:70–97 9. Ageew, N, and Sachs G., Rontgenographische Bestimmung der Lo¨slichkeit von Kupfer in Silber. Z Phys., 1930, 66:293–30. 10. Han, S.Z. Ahn, JH. You, YS Lee, J. Goto, M. Kim, K., and Kim, S., Met. Mater. Int., 2018, 24, 1 pp. 23-27 11. Boumerzoug, Z, and Fatmi, M. Effect of heat treatments on discontinuous precipitation kinetics in Al-30 wt.% Zn alloy,Materials Characterization,2009, 60 (8), 2009, 768-774 12. Boumerzoug, Z., and Hamana D Different sites of discontinuous precipitation and mechanisms of dissolution in Cu-9 wt.% Sb alloy, Materials chemistry and physics,2001, 69 (1-3), 10-18. 13. Hamana, D., Boumerzoug, Z., Fatmi, M. and Chekroud, S., Discontinuous and continuous precipitation in Cu-13 wt.% Sn and Al-20 wt.% Ag alloys, Materials chemistry and physics .1998,53, 3, 208-216. 14. Boumerzoug, Z., Boudhib, L., and Chala, A. Influence of plastic deformation on occurrence of discontinuous precipitation, Journal of materials science, 2005, 40,12, 3199-3203 15. Fatmi, M., and Boumerzoug, Z. Influence of plastic deformation on occurrence of discontinuous precipitation reaction in Ni-3 at% In alloy, Physica B: Condensed Matter,2010, 405,19, 4111-4115 16. Hamana, D. Boumerzoug, Z., and Saheb, N., Cellular precipitation from phase boundaries in Cu-9 wt% Sb alloy, Philosophical magazine letters,1995, 72 (6), 369-374. 17. Tu, KN., and Turnbull, D., Morphology of cellular precipitation of tin from lead-tin bicrystals. Acta Metal, 1967, 15:369–376 18. Fournelle, RA., and Clark, JB., The genesis of cellular precipitation reaction. Metal Trans ,1972,3:2757–2767. 19. Abdou, S., and Abd El-Hafez, H., Influence of Plastic Deformation on Occurrence of Discontinuous Reaction in Ni-In Alloy, WJET;2018, 6, 2. 20. Semboshi, S Ikeda, J., Iwase, A., Takayuki Takasugi, T., and Suzuki, S.,Effect of Boron Doping on Cellular Discontinuous Precipitation for Age-Hardenable Cu–Ti Alloys, Materials (Basel). 2015, 8,6, 3467–3478. 21. Grokhovsky, V. J., and Bevan, A.W.R. Plessite formation by discontinuous precipitation reaction from γ-Fe,Ni in Richardton (H5) ordinary chondrite, Nature, Letter published on 27 January 1983.