The concentration and temperature dependence of the stacking fault energy in face-centered cubic Co-Fe alloys

Tisone, T. C.

doi:10.1016/0001-6160(73)90008-4

Cited by 63 publications

(11 citation statements)

References 33 publications

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“…The origin of this discrepant value is unknown, although it is argued that for such a composition, the e ective SFE should be expected to be larger, on the basis of the other results obtained by Bampton et al [19]. In fact, the trend shown in their paper [23], reported an increase of the SFE for a constant Ni content and an increase in the Cr content, for Cr amounts above 16 wt% which corresponds to a molar fraction X Cr of approximately 0.17.…”

Section: The Hyperbola-like Shape Sfe Dependence On Compositionmentioning

confidence: 81%

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A thermodynamic model for the stacking-fault energy

1998

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Section: The Hyperbola-like Shape Sfe Dependence On Compositionmentioning

confidence: 81%

“…phase transformation can be approximated as exhibiting a 2% contraction along the h.c.p. c-axis [23]. Since the (0001) plane of the h.c.p.…”

Section: Appendix Amentioning

confidence: 99%

A thermodynamic model for the stacking-fault energy

1998

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“…A probable explanation, therefore, is ascribed to the contribution to SSH from stacking faults. Co has a significantly low SFE (~10 mJ/m 2 for FCC Co [34] ), and its addition to Ni lowers the SFE of the alloy. This results in an increased occurrence of SFs in the alloy during deformation, leading to additional strengthening through the suppression of cross slip-mediated deforma- Table I).…”

Section: Ni-based Binary Alloysmentioning

confidence: 99%

“…On the other hand, at higher concentrations, both Fe and Ni stabilize the FCC phase, which is retained to room temperature. [34] Table I). Values of SSH coefficients k, which are the slopes of linear fits, are presented.…”

Section: Co-based Binary Alloysmentioning

confidence: 99%

Evaluation of Solid-Solution Hardening in Several Binary Alloy Systems Using Diffusion Couples Combined with Nanoindentation

Kadambi

Divya

Ramamurty

2017

Metall Mater Trans A

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Analysis of solid-solution hardening (SSH) in alloys requires the synthesis of large composition libraries and the measurement of strength or hardness from these compositions. Conventional methods of synthesis and testing, however, are not efficient and high-throughput approaches have been developed in the past. In the present study, we use a high-throughput combinatorial approach to examine SSH at large concentrations in binary alloys of Fe-Ni, Fe-Co, Pt-Ni, Pt-Co, Ni-Co, Ni-Mo, and Co-Mo. The diffusion couple (DC) method is used to generate concentration (c) gradients and the nanoindentation (NI) technique to measure the hardness (H) along these gradients. The obtained H-c profiles are analyzed within the framework of the Labusch model of SSH, and the c 2=3 dependence of H predicted by the model is found to be generally applicable. The SSH behavior obtained using the combinatorial method is found to be largely consistent with that observed in the literature using conventional and DC-NI methods. This study evaluates SSH in Fe-, Ni-, Co-, and Pt-based binary alloys and confirms the applicability of the DC-NI approach for rapidly screening various solute elements for their SSH ability.

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“…Moreover, It has been shown that Co-Cr-Mo alloy has a rather low value of the Intrinsic stacking fault energy which facilitates the formation of high density of stacking faults and promotes strain-induced martensitic transformation. It also has been shown that In Co-base alloys, the Intrinsic stacking fault energy was strongly dependent upon composition (35), as in some other alloy systems (36).…”

Section: Introductionmentioning

confidence: 94%