scholarly journals Effect of Post-Deposition Solution Treatment and Ageing on Improving Interfacial Adhesion Strength of Cold Sprayed Ti6Al4V Coatings

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2038
Author(s):  
Dibakor Boruah ◽  
Xiang Zhang
Keyword(s):  
Tensile Strength ◽  
Adhesion Strength ◽  
Interfacial Adhesion ◽  
Substrate Surface ◽  
Solution Treatment ◽  
Test Solution ◽  
Porosity Level ◽  
Lathe Machine ◽  
Interfacial Adhesion Strength ◽  
Post Deposition

This study aims at investigating the effect of post-deposition solution treatment and ageing (STA) on improving the interfacial adhesion strength in cold spray (CS) Ti6Al4V coatings deposited on Ti6Al4V substrates, measured by the adhesive-free collar-pin pull-off (CPP) test. Solution treatment was performed at 940 °C for 1 h and ageing was carried out at 480 °C for 8 h. Investigations were carried out for specimens with three different pre-treatments of the substrate surface, namely grit-blasted, as-machined (faced on lathe machine), and ground. Additionally, the effect of post-deposition STA was studied in terms of phase analysis, microstructure, and porosity level. It was observed that STA led to complete interfacial mixing resulting in significantly improved adhesion strength (by more than 520%) with the maximum measured value of greater than 766 MPa for ground substrates, reaching 81% of the ultimate tensile strength of mill annealed Ti6Al4V.

Characteristics of the Transfer Film and Tribological Properties of Oxide/PTFE Composites

2013 ◽  
Vol 631-632 ◽  
pp. 172-175 ◽  
Author(s):  
Ting Xie ◽  
Zheng Hua Zhou ◽  
Zhen Xing Xu ◽  
Jian Wei Yu ◽  
Ming Hua Jiao
Keyword(s):  
Adhesion Strength ◽  
Tribological Properties ◽  
Interfacial Adhesion ◽  
Measured Data ◽  
Transfer Film ◽  
Micro Hardness ◽  
Transfer Films ◽  
Ptfe Composites ◽  
Interfacial Adhesion Strength ◽  
Better Than

The formed transfer film on the counterpart surface and tribological properties of PTFE composites filled with Al2O3 or SiO2 were investigated in this paper. The results indicated that under the same friction conditions, the friction coefficients of SiO2/PTFE and Al2O3/PTFE are very close to each other, but the wear resistance of SiO2/PTFE is superior to that of Al2O3/PTFE. According to the measured data, the micro-hardness and elastic modulus of the transfer film for SiO2/PTFE are much better than those of Al2O3/PTFE. In addition, the interfacial adhesion strength between the transfer film of SiO2/PTFE and the counterface is higher. It can be proved that the mechanical properties of transfer films for PTFE composites vary with different fillers and the friction transfer film with better adhesion strength and mechanical property is useful to improve the tribological properties of the composite.

Three-Dimensional Mechanical Modeling of Magnet-Controlled Transfer Printing

2019 ◽  
Vol 11 (05) ◽  
pp. 1950042 ◽  
Author(s):  
Xiaofei Zhang ◽  
Changhong Linghu ◽  
Jizhou Song
Keyword(s):  
Adhesion Strength ◽  
Interfacial Adhesion ◽  
Scaling Law ◽  
Three Dimensional ◽  
Magnetic Pressure ◽  
Work Of Adhesion ◽  
Engineering Systems ◽  
Transfer Printing ◽  
Dimensional Parameters ◽  
Interfacial Adhesion Strength

The recently developed magnet-controlled transfer printing is valuable to develop advanced engineering systems due to its ability to tune the interfacial adhesion strength continuously and rapidly. A three-dimensional analytical model based on the energy method is developed for the magnet-controlled transfer printing. The predicted interfacial adhesion strengths agree well with experiments. A scaling law is established for the normalized interfacial adhesion strength, which depends on only four non-dimensional parameters: the normalized stamp size, the normalized stamp height, the normalized work of adhesion, and the normalized magnetic pressure. The influences of the non-dimensional parameters on the adhesion strength are fully investigated. This study provides a theory to guide the design of stamp and selection of the magnetic pressure to enable a successful magnet-controlled transfer printing.

UV-Irradiation Effects on Interfacial Strength between Thin Ceramic Film and Polymer Substrate

2005 ◽  
Vol 297-300 ◽  
pp. 2284-2289 ◽  
Author(s):  
Masaki Omiya ◽  
Hirotsugu Inoue ◽  
Kikuo Kishimoto ◽  
Masaaki Yanaka ◽  
Noritaka Ihashi
Keyword(s):  
Adhesion Strength ◽  
Uv Irradiation ◽  
Interfacial Adhesion ◽  
Interfacial Strength ◽  
Ultra Violet ◽  
Peel Test ◽  
Polymeric Materials ◽  
Polymer Substrate ◽  
Ceramic Films ◽  
Interfacial Adhesion Strength

This aim of this study is to investigate the effect of UV (Ultra Violet ray) irradiation on the interfacial adhesion strength between thin ceramic films and polymer substrate. Electric conductive films based on polymer substrates have attracted attention for use in flexible optoelectronic devices. It is well known that the mechanical properties of polymeric materials are degraded by UV irradiation. Therefore, it is considered that the UV irradiation also affects the interfacial adhesion strength between ceramic coating and polymer substrate. The interfacial adhesion strength was measured by Multi-stages peel test. The results show that the interfacial strength decreases with UV irradiation. However, if a filter layer is installed between ceramic and polymer substrate, the degradation ratio becomes small.

Evaluation of Interfacial Adhesion Strength of Composite Plate Using Laser Ultrasonic Waves

2016 ◽  
Vol 2016 (0) ◽  
pp. OS12-20
Author(s):  
Atsuki HIRAKU ◽  
Daisuke SUGIURA ◽  
Masaomi NISHIMURA ◽  
Keita GOTO ◽  
Masahiro ARAI ◽  
...  
Keyword(s):  
Adhesion Strength ◽  
Composite Plate ◽  
Interfacial Adhesion ◽  
Ultrasonic Waves ◽  
Laser Ultrasonic ◽  
Interfacial Adhesion Strength
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