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Mechanical Properties of Nickel Base Metastable Solid Solutions with Large Size Mismatch

Published online by Cambridge University Press:  21 February 2011

C.L. Tsai  and
B.C. Giessen
C.L. Tsai
Affiliation:
Materials Science Division, Barnett Institute of Chemical Analysis & Materials Science, Northeastern University, Boston, MA 02115
B.C. Giessen
Affiliation:
Materials Science Division, Barnett Institute of Chemical Analysis & Materials Science, Northeastern University, Boston, MA 02115
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Abstract

Ni-based stable and metastable solid solutions with T3 and T4 transition metals have been prepared by rapid liquid quenching. The microhardnesses of these alloys show a substantial increase (by a factor of 4 to 5) that scales with their size mismatch as well as the solute concentration. It was found that the microhardness increase, ΔH, can be fitted well to the theoretical equation: ΔHv = K μ (cη)4/v3 where μ is the solvent shear modulus, c is the solute concentration and η is the size mismatch. The constant K for Ni base solid solutions is ~85.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 28: Symposium F – Rapidly Solidified Metastable Materials , 1983 , 413
Copyright
Copyright © Materials Research Society 1984

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References

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