Microstructure, microhardness and corrosion resistance of remelted TiG2 and Ti6Al4V by a high power diode laser
- 1. Laboratorio de Corrosión y Protección, Universidad de Cádiz, Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Avda. República Saharaui s/n, 11510 Puerto Real, Cádiz (Spain)
- 2. Departamento de Física Aplicada, CASEM, Avda. República Saharaui s/n, 11510-Puerto Real, Cádiz (Spain)
- 3. Titania, Ensayos y Proyectos Industriales S.L., Ctra Sanlúcar A-2001 Km 7,5, Parque Tecnológico TecnoBahía-Edif. RETSE Nave 4, 11500 El Puerto de Santa María, Cádiz (Spain)
Description
Highlights: ► Laser remelting of TiG2 and Ti6Al4V is performed with argon shielded diode laser. ► Microstructure, microhardness and corrosion of remelted samples are deeply analysed. ► Microstructural changes of laser remelted TiG2 lead to microhardness increase. ► Remelted Ti6Al4V presents microhardness increase and corrosion improvement. ► Martensite depth in remelted Ti6Al4V is linearly proportional to laser fluence. - Abstract: The high strength, low density and superior corrosion resistance allow titanium alloys to be widely employed in different industrial applications. The properties of these alloys can be modulated by different heat treatments, including laser processing. In the present paper, laser remelting treatments, performed with a high power diode laser, were applied to samples of two titanium alloys (TiG2 and Ti6Al4V). The influence of the applied laser fluence on microstructure, microhardness and corrosion resistance is investigated. Results show that laser remelting treatments with appropriate fluences provoke microstructural changes leading to microhardness increase and corrosion resistance improvement.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.corsci.2011.11.006Additional details
Identifiers
- DOI
- 10.1016/j.corsci.2011.11.006;
- PII
- S0010-938X(11)00610-X;
Publishing Information
- Journal Title
- Corrosion Science
- Journal Volume
- 56
- Journal Page Range
- p. 36-48
- ISSN
- 0010-938X
- CODEN
- CRRSAA
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43073257
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ARGON; CORROSION; CORROSION RESISTANCE; DENSITY; HARDENING; HEAT TREATMENTS; LASERS; MARTENSITE; MICROHARDNESS; MICROSTRUCTURE; POLARIZATION; TITANIUM ALLOYS; X-RAY DIFFRACTION
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; FLUIDS; GASES; HARDNESS; IRON ALLOYS; MECHANICAL PROPERTIES; NONMETALS; PHYSICAL PROPERTIES; RARE GASES; SCATTERING; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.