TY - JOUR
T1 - Effect of surface morphology on the Ti–Ti adhesive bond performance of Ti6Al4V parts fabricated by selective laser melting
AU - Ardila-Rodríguez, Laura Angélica
AU - Rans, Calvin
AU - Poulis, Johannes A.
PY - 2021
Y1 - 2021
N2 - Surface morphology of adherends is an important factor to take into consideration when studying and improving the performance of an adhesive bonded joint. In this study, the adhesion performance three different surface morphologies of Selective Laser Melted (SLM) Ti6Al4V was studied. The three surface morphologies were created by manufacturing the adherends with different build directions (0, 45 and 90°). Scanning electron microscopy and laser confocal microscopy were used to assess the obtained morphology and roughness of the printed surface areas to be bonded. Those surfaces were subjected to 40 min of UV/Ozone treatment to remove organic contamination traces on the surface which lead to a reduced apparent contact angle and improved adhesive strength. The samples printed at 45°, which showed the highest surface roughness, presented the best adhesive performance during the tensile tests. The addition of sol-gel AC-120 and corrosion inhibition water-based primer BR 6747-1 showed an effective improvement in aging behaviour after 6 weeks of salt spray exposure.
AB - Surface morphology of adherends is an important factor to take into consideration when studying and improving the performance of an adhesive bonded joint. In this study, the adhesion performance three different surface morphologies of Selective Laser Melted (SLM) Ti6Al4V was studied. The three surface morphologies were created by manufacturing the adherends with different build directions (0, 45 and 90°). Scanning electron microscopy and laser confocal microscopy were used to assess the obtained morphology and roughness of the printed surface areas to be bonded. Those surfaces were subjected to 40 min of UV/Ozone treatment to remove organic contamination traces on the surface which lead to a reduced apparent contact angle and improved adhesive strength. The samples printed at 45°, which showed the highest surface roughness, presented the best adhesive performance during the tensile tests. The addition of sol-gel AC-120 and corrosion inhibition water-based primer BR 6747-1 showed an effective improvement in aging behaviour after 6 weeks of salt spray exposure.
KW - Adhesive bonding
KW - Salt spray
KW - Selective laser melting
KW - Surface morphology
KW - UV/Ozone treatment
UR - http://www.scopus.com/inward/record.url?scp=85107631252&partnerID=8YFLogxK
U2 - 10.1016/j.ijadhadh.2021.102918
DO - 10.1016/j.ijadhadh.2021.102918
M3 - Article
VL - 110
JO - International Journal of Adhesion and Adhesives
JF - International Journal of Adhesion and Adhesives
SN - 0143-7496
M1 - 102918
ER -