Effect of stacking fault energy on strength and ductility of nanostructured alloys: An evaluation with minimum solution hardening

Pei Ling Sun; Y. H. Zhao; J. C. Cooley; M. E. Kassner; Z. Horita; T. G. Langdon; E. J. Lavernia; Y. T. Zhu

doi:10.1016/j.msea.2009.06.030

Effect of stacking fault energy on strength and ductility of nanostructured alloys: An evaluation with minimum solution hardening

Pei Ling Sun, Y. H. Zhao, J. C. Cooley, M. E. Kassner, Z. Horita, T. G. Langdon, E. J. Lavernia, Y. T. Zhu

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

74 Citations (Scopus)

Abstract

The effect of stacking fault energy (SFE) on the mechanical properties was investigated in Ni-Co alloys which have minimum solution hardening effects. Cobalt reduces the SFE in nickel and this promotes grain refinement during processing and increases the dislocation and twin densities. A reduction in SFE increases strength and tensile ductility. The higher strength is due to grain refinement and higher dislocation and pre-existing twin densities whereas the higher ductility is attributed to a higher work hardening rate.

Original language	English
Pages (from-to)	83-86
Number of pages	4
Journal	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume	525
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2009.06.030
Publication status	Published - Nov 15 2009

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2009.06.030

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Sun, P. L., Zhao, Y. H., Cooley, J. C., Kassner, M. E., Horita, Z., Langdon, T. G., Lavernia, E. J., & Zhu, Y. T. (2009). Effect of stacking fault energy on strength and ductility of nanostructured alloys: An evaluation with minimum solution hardening. Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 525(1-2), 83-86. https://doi.org/10.1016/j.msea.2009.06.030

Effect of stacking fault energy on strength and ductility of nanostructured alloys: An evaluation with minimum solution hardening. / Sun, Pei Ling; Zhao, Y. H.; Cooley, J. C. et al.
In: Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, Vol. 525, No. 1-2, 15.11.2009, p. 83-86.

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

Sun, PL, Zhao, YH, Cooley, JC, Kassner, ME, Horita, Z, Langdon, TG, Lavernia, EJ & Zhu, YT 2009, 'Effect of stacking fault energy on strength and ductility of nanostructured alloys: An evaluation with minimum solution hardening', Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, vol. 525, no. 1-2, pp. 83-86. https://doi.org/10.1016/j.msea.2009.06.030

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abstract = "The effect of stacking fault energy (SFE) on the mechanical properties was investigated in Ni-Co alloys which have minimum solution hardening effects. Cobalt reduces the SFE in nickel and this promotes grain refinement during processing and increases the dislocation and twin densities. A reduction in SFE increases strength and tensile ductility. The higher strength is due to grain refinement and higher dislocation and pre-existing twin densities whereas the higher ductility is attributed to a higher work hardening rate.",

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AU - Kassner, M. E.

AU - Horita, Z.

AU - Langdon, T. G.

AU - Lavernia, E. J.

AU - Zhu, Y. T.

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Effect of stacking fault energy on strength and ductility of nanostructured alloys: An evaluation with minimum solution hardening

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