Obtainment of a NiCrNbC Alloy by Mechanical Alloying

Alisson K. da Silva; Osvaldo Mitsuyuki Cintho; José D.T. Capocchi

doi:10.4028/www.scientific.net/MSF.802.35

Paper Titles

Phase Transformation in Mechanically Alloyed and Hot-Pressed Nb-4Si-8B and Nb-8Si-16B Alloys
p.14

High-Energy Ball Milling and Sintering of Ti-2Ta-22Si-11B and Ti-6Ta-22Si-11B Powders Mixtures
p.20

Effect of Mechanical Alloying on Characteristic of Powders of Amnoia Hepatamolybdate, Copper and MoCu Sintered
p.25

High-Energy Ball Milling and Hot Pressing of the Ni-48Ti-2Sn and Ni-45Ti-5Sn Powder Mixtures
p.29

Obtainment of a NiCrNbC Alloy by Mechanical Alloying
p.35

Comparative Study of Mechanical Activation Improved by High Energy Ball Mills in Chromium Oxide Reduction
p.41

Syntesis of Niobium Nitride Using Cryogenic Milling
p.46

Microstructural Characterization of 66%Co-28%Cr-6%Mo Dental Alloy Powder Obtained by High-Energy Ball Milling
p.51

Effect of Ball-Powder Ratio in the High-Energy Milling of 66%Co-28%Cr-6%Mo Dental Alloy
p.56

HomeMaterials Science ForumMaterials Science Forum Vol. 802Obtainment of a NiCrNbC Alloy by Mechanical...

Obtainment of a NiCrNbC Alloy by Mechanical Alloying

Abstract:

The present work investigate the possibility of obtainment by mechanical alloying of Ni superalloys based on the Ni-Cr-Nb-C system strengthened by γ”(Ni3Nb), since γ”(Ni3Nb) as γ’ (Ni3Al) are typical coherent phase strengthening mechanisms in nickel superalloys. In order to evaluate this possibility, a composition with 71,65wt%Ni, 7,90wt%Cr, 20,00wt%Nb and 0,45wt%C was processed in a SPEX mill by 8 hours, consolidated and sintered at different temperatures (1200oC, 1250oC and 1300oC). The powder processed by MA and the sintered products were characterized by x-ray diffraction, SEM and EDS.