Details
| Original language | English |
|---|---|
| Article number | 103439 |
| Journal | International Journal of Adhesion and Adhesives |
| Volume | 125 |
| Early online date | 30 Jun 2023 |
| Publication status | Published - Jul 2023 |
Abstract
Developing a bonded prestressed solution for strengthening structures utilizing an iron-based shape memory alloy (Fe-SMA), is of significant interest. This study is the first systematic investigation of adhesively-bonded Fe-SMA joints to achieve complete cohesive failure, which is an essential prerequisite for bond integrity. The Fe-SMA surface was prepared by combining UV/ozone exposure (UV), sol–gel (SG), and primers (PC, PNC), and the failure mode of the joint was investigated using the floating-roller peel test. Furthermore, the joint durability was studied through artificial aging using a salt spray cabinet. Cohesive failure was obtained for all investigated adhesives, and the effect of every surface preparation step was described. The application of sol–gel was found to be a crucial step in obtaining complete adhesive failure.
Keywords
- Durability, Iron-based shape memory alloy, Primers and coupling agents, Surface treatment
ASJC Scopus subject areas
- Materials Science(all)
- Biomaterials
- Chemical Engineering(all)
- Materials Science(all)
- Polymers and Plastics
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In: International Journal of Adhesion and Adhesives, Vol. 125, 103439, 07.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Surface preparations and durability of iron-based shape memory alloy adhesively-bonded joints
AU - Pichler, Niels
AU - Wang, Wandong
AU - Poulis, Johannes A.
AU - Ghafoori, Elyas
N1 - Funding Information: The authors would like to acknowledge the financial support of the Swiss National Foundation, SNSF, Switzerland (Grant No. 200021_192238 ), as well as Huntsmann Advanced Materials (Switzerland) GmbH, re-fer AG and Sika for providing material used for this work. Special thanks to Dr. Sofia Teixeira de Freitas, the staff of the Delft Aerospace Structures and Materials Laboratory and the DEMO University workshop for their kind support.
PY - 2023/7
Y1 - 2023/7
N2 - Developing a bonded prestressed solution for strengthening structures utilizing an iron-based shape memory alloy (Fe-SMA), is of significant interest. This study is the first systematic investigation of adhesively-bonded Fe-SMA joints to achieve complete cohesive failure, which is an essential prerequisite for bond integrity. The Fe-SMA surface was prepared by combining UV/ozone exposure (UV), sol–gel (SG), and primers (PC, PNC), and the failure mode of the joint was investigated using the floating-roller peel test. Furthermore, the joint durability was studied through artificial aging using a salt spray cabinet. Cohesive failure was obtained for all investigated adhesives, and the effect of every surface preparation step was described. The application of sol–gel was found to be a crucial step in obtaining complete adhesive failure.
AB - Developing a bonded prestressed solution for strengthening structures utilizing an iron-based shape memory alloy (Fe-SMA), is of significant interest. This study is the first systematic investigation of adhesively-bonded Fe-SMA joints to achieve complete cohesive failure, which is an essential prerequisite for bond integrity. The Fe-SMA surface was prepared by combining UV/ozone exposure (UV), sol–gel (SG), and primers (PC, PNC), and the failure mode of the joint was investigated using the floating-roller peel test. Furthermore, the joint durability was studied through artificial aging using a salt spray cabinet. Cohesive failure was obtained for all investigated adhesives, and the effect of every surface preparation step was described. The application of sol–gel was found to be a crucial step in obtaining complete adhesive failure.
KW - Durability
KW - Iron-based shape memory alloy
KW - Primers and coupling agents
KW - Surface treatment
UR - http://www.scopus.com/inward/record.url?scp=85164276295&partnerID=8YFLogxK
U2 - 10.1016/j.ijadhadh.2023.103439
DO - 10.1016/j.ijadhadh.2023.103439
M3 - Article
AN - SCOPUS:85164276295
VL - 125
JO - International Journal of Adhesion and Adhesives
JF - International Journal of Adhesion and Adhesives
SN - 0143-7496
M1 - 103439
ER -