Tableau 2

Valeurs de relaxation ε pour la profondeur de forage maximale et contrainte résiduelle correspondante σ pour les revêtements nickel-bore sans (brut) et avec (TT) traitement thermique.

Relaxation values ε at maximum drilling depth and corresponding residual stress σ for nickel-bore coatings without (pristine) and with (TT) heat treatment.

NiB brut    NiB TT   

Test ε (×104) σ (MPa) Test ε (×104) σ (MPa)
T1 4,5 −122 T1 4,8 −176
T2 0,4 −11 T2 1,5 −55
T3 −5,2 141

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