TY - JOUR

T1 - Laser induced surface nano-structuring of Ti-6Al-4V for adhesive bonding

AU - Kurtovic, A.

AU - Brandl, E.

AU - Mertens, T.

AU - Maier, H. J.

N1 - Funding information: This research and development project is funded by the German Federal Ministry of Education and Research (BMBF) within the Framework Concept “Research for Tomorrow's Production” (funding number 02PJ2090-2095 ) and managed by the Project Management Agency Karlsruhe (PTKA). The authors are responsible for the contents of this publication.

PY - 2013/5/13

Y1 - 2013/5/13

N2 - In this paper, the effect of pulsed laser irradiation (Nd:YVO4, 1064 nm) on the surface morphology and adhesion behaviour of Ti-6Al-4V was investigated. The surfaces were inspected by scanning electron microscopy (SEM), the chemical composition was obtained using X-ray photoelectron spectroscopy (XPS) and the adhesive properties were evaluated by means of wedge tests and floating roller peeling tests. The experiments revealed a homogeneous morphology consisting of a nano-structured oxide layer obtained within a particular set of laser parameters. The chemical investigation showed a considerable decrease of the contamination level on the surface compared to alkaline etching. The wedge test and floating roller peeling test showed that the nano-structured oxide layer formed after the laser process leads to a long-term stable adhesion behaviour. Using the laser pre-treatment the adhesion properties on titanium can be improved as compared to wet chemical pre-treatment processes like alkaline etching (Turco 5578) or anodising (NaTESi).

AB - In this paper, the effect of pulsed laser irradiation (Nd:YVO4, 1064 nm) on the surface morphology and adhesion behaviour of Ti-6Al-4V was investigated. The surfaces were inspected by scanning electron microscopy (SEM), the chemical composition was obtained using X-ray photoelectron spectroscopy (XPS) and the adhesive properties were evaluated by means of wedge tests and floating roller peeling tests. The experiments revealed a homogeneous morphology consisting of a nano-structured oxide layer obtained within a particular set of laser parameters. The chemical investigation showed a considerable decrease of the contamination level on the surface compared to alkaline etching. The wedge test and floating roller peeling test showed that the nano-structured oxide layer formed after the laser process leads to a long-term stable adhesion behaviour. Using the laser pre-treatment the adhesion properties on titanium can be improved as compared to wet chemical pre-treatment processes like alkaline etching (Turco 5578) or anodising (NaTESi).

KW - Laser pre-treatment

KW - Surface morphology

KW - Titanium and alloys

KW - Wedge tests

UR - http://www.scopus.com/inward/record.url?scp=84878775522&partnerID=8YFLogxK

U2 - 10.1016/j.ijadhadh.2013.05.004

DO - 10.1016/j.ijadhadh.2013.05.004

M3 - Article

AN - SCOPUS:84878775522

VL - 45

SP - 112

EP - 117

JO - International Journal of Adhesion and Adhesives

JF - International Journal of Adhesion and Adhesives

SN - 0143-7496

ER -