Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
INFLUENCE OF LASER TREATMENT ON THE CREEP TEST OF THE Ti-6Al-4V ALLOY
Year:2011
Research Areas
  • Engineering
Information
Abstract
Titanium and its alloys are excellent materials for structural applications in components submitted to high temperatures because of their high strength, weight ratio, good corrosion resistance, and microstructural stability. However, the affinity to oxygen is one of the main factors that limit their application as structural materials at high temperatures. The objective of this work was to estimate the influence of laser treatment on the creep of a Ti-6Al-4V alloy. Constant load creep tests were conducted at 873 K (600 ?C) in a standard creep machine at a stress of 125 to 319 MPa. Samples with a gage length of 18.5 mm and a diameter of 3.0 mm were used for all tests. It was observed that the effect of the oxidation was smaller and the behavior of the creep curves showed that the life time in laser treated samples was better than in the received samples. An increase of ductility of final strain and in the lifetime for the lasertreated material was observed. The decrease of the steady-state creep occurred in conjunction with the oxidation process reduction, showing that for the Ti-6Al-4V alloy, the lifetime is affected strongly by the laser treatment with an increase in this superficial protection
International
Si
JCR
Si
Title
Metallurgical And Materials Transactions a-Physical Metallurgy And Materials Science
ISBN
1073-5623
Impact factor JCR
1,712
Impact info
Volume
42A
10.1007/s11661-011-0843-5
Journal number
From page
3031
To page
3035
Month
SIN MES
Ranking
Participants
  • Autor: Javier Oñoro Lopez (UPM)
  • Autor: A.G. REIS
  • Autor: D.A.P. REIS
  • Autor: C. MOURA NIETO
  • Autor: M.J.R. BARBOZA
  • Autor: C.R.M. SILVA
  • Autor: F. PIORINO NIETO
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Ingeniería y Ciencia de los Materiales
  • Centro o Instituto I+D+i: Centro Laser
  • Departamento: Ingeniería y Ciencia de los Materiales
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)