Efecto de la adición de un 10 % en volumen de cromo en el comportamiento a tracción de aleaciones pulvimetalúrgicas NiAlCr

Translated title of the contribution: Effect of the addition of 10 % (volume fraction) of chromium on the mechanical properties of NiAlCr processed by powder metallurgy

J. García-Barriocanal, G. Garcés, P. Pérez, P. Adeva

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The mechanical properties of Ni3Al-Cr reinforced with 10% in volume fraction of chromium particles produced by powder metallurgy have been studied. For this purpose, milled powders with composition of Ni-20.9Al-8Cr-0.49B (% at.) with and without the addition of 10% in volume fraction of chromium particles have been produced. Both alloys were consolidated by hot isostatic pressing (HIP). After HIP, heat treatment was applied to homogenize the microstructure. The chromium reinforcement has an important effect in the yield strength and ultimate strength increase. The reinforced alloy presents a yield strength of 1300 MPa at room temperature with respect to 800 MPa for the un-reinforced material. After heat treatment, the yield strength of both alloys does not change significantly. However, a decrease in ductility and ultimate tensile strength have been observed.

Translated title of the contributionEffect of the addition of 10 % (volume fraction) of chromium on the mechanical properties of NiAlCr processed by powder metallurgy
Original languageSpanish
Pages (from-to)286-291
Number of pages6
JournalRevista de Metalurgia (Madrid)
Volume41
Issue number4
DOIs
StatePublished - 2005

Keywords

  • Mechanical properties
  • Microstructure
  • Powder metallurgy

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