1. Viscoplastic alloys

1.1 Problem position

Scientists were quick to point out that the hardness of a metal alloy at high temperature decreases as the duration t of application of force P increases, and obtained empirical relationships of the type [47] :

lg H = M – m _app lg t if P = Cte ^( 1 )

The coefficients M and m _app depend on temperature and test conditions; the factor m _app , which we'll call apparent viscosity index, is a priori...

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Viscoplastic alloys

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page Hardness of bodies - Analysis of other behaviors

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References

(1) - TABOR (D.) - The hardness of solids. - Proc. of the Institute of Physics F- Physics in Technology, 1, 145-179 (1970).
(2) - O'NEILL (H.) - Hardness measurements of metals and alloys. - Chapman and Hall, p. 238 (1967).

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