Creep behavior of plasma carburized Ti-6Al-4V alloy

Creep behavior of plasma carburized Ti-6Al-4V alloy

This paper aims to evaluate the effect of plasma carburizing on the Ti-6Al-4V alloy submitted to creep tests. The results showed that the alloy Ti-6Al-4V had a hardness of 334 plus or minus 18 HV. After treatment thermochemical by plasma, was observed the formation of a layer of average thickness of...

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Veröffentlicht in:Tecnologia em Metalurgia, Materiais e Mineracao Materiais e Mineracao, 2010-01, Vol.20100726, p.3678-3687
Hauptverfasser: De Oliveira, Veronica Mara Cortez Alves, Barboza, Miguel Justino Ribeiro, Da Silva, Mariane Capellari Leite, Pinto, Catia Gisele, Suzuki, Paulo Atsushi, Reis, Danieli Aparecida Pereira, Machado, Joao Paulo B, Neto, Francisco Piorino
Format: Artikel
Sprache:eng
Schlagworte:
Carburizing
Creep (materials)
Creep tests
Diffraction
Federations
Hardness
Titanium base alloys
X-rays
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Zusammenfassung:This paper aims to evaluate the effect of plasma carburizing on the Ti-6Al-4V alloy submitted to creep tests. The results showed that the alloy Ti-6Al-4V had a hardness of 334 plus or minus 18 HV. After treatment thermochemical by plasma, was observed the formation of a layer of average thickness of 1,5 mu m and hardness of 809 plus or minus 79 HV due to the presence of TiC phase identified by X-ray diffraction. The treatment increased the values of average roughness of 1,28 to 2,02 mu m. The creep properties of carburized specimens were improved in comparison with those of the uncarburized Ti-6Al-4V alloy.
ISSN:2176-1515