Role of surface roughness on corrosion and fretting corrosion behaviour of commercially pure titanium in Ringer’s solution for bio-implant application

2017 ◽  
Vol 401 ◽  
pp. 385-398 ◽  
Author(s):  
Bose Sivakumar ◽  
Lokesh Chandra Pathak ◽  
Raghuvir Singh
Keyword(s):  
Surface Roughness ◽  
Corrosion Behaviour ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Fretting Corrosion ◽  
Ringer’S Solution ◽  
Commercially Pure

The Influence of Laser Irradiation Parameters on Tribological Behaviour of Commercially Pure Titanium for Dental Prostheses

2016 ◽  
Author(s):  
Karibeeran Shanmuga Sundaram ◽  
Gurusami Kiliyappan ◽  
Senthil Kumaran Selvadurai
Keyword(s):  
Surface Roughness ◽  
Wear Resistance ◽  
Pure Titanium ◽  
Laser Surface ◽  
Commercially Pure Titanium ◽  
Laser Shock ◽  
Micro Hardness ◽  
Dental Prostheses ◽  
Commercially Pure ◽  
Cp Ti

Laser shock peening (LSP) is one of the innovative technique that produces a compressive residual stress on the surface of metallic materials, thereby significantly increasing its fatigue life in applications where failure is caused by surface-initiated cracks. The specimens were treated with laser shock waves with different processing parameters, and characterization studies were made on treated specimens. The purpose of the present study was to investigate the influence of Nd:YAG laser on commercially pure titanium (CP-Ti) used in prosthetic dental restorations. The treatment influenced change in microstructure, micro hardness, surface roughness, and wear resistance characteristics. Though CP-Ti is considered as an excellent material for dental applications due to its outstanding biocompatibility, it is not suitable when high mastication forces are applied. In the present study, pulsed Nd:YAG laser surface treatment technique was adopted to improve the wear resistance of CP-Ti. The wear test pin specimens of CP-Ti were investment cast with centrifugal titanium casting machine. The wear properties of specimens were evaluated after LSP on a “pin-on-disc” wear testing tribometer, as per ASTM G99-05 standards. The results of the wear experiment showed that the treated laser surface has higher wear resistance, micro hardness, and surface roughness compared to as-cast samples. The improvement of wear resistance may be attributed due to grain refinement imparted by LSP processes. The microstructure, wear surfaces, wear debris, and morphology of the specimen were analyzed by using optical electron microscope, scanning electron microscope, and X-ray diffraction (XRD). The data were compared using ANOVA and post-hoc Tukey tests. The characteristic change resulted in increase in wear resistance and decrease in wear rate. Hence, it is evident that the more reliable and removable partial denture metal frameworks for dental prostheses may find its applications.

Wettability and osteoblastic cell adhesion on ultrapolished commercially pure titanium surfaces: the role of the oxidation and pollution states

2014 ◽  
Vol 28 (12) ◽  
pp. 1207-1218 ◽  
Author(s):  
Miguel A. Fernández-Rodríguez ◽  
Alda Y. Sánchez-Treviño ◽  
Elvira De Luna-Bertos ◽  
Javier Ramos-Torrecillas ◽  
Olga García-Martínez ◽  
...  
Keyword(s):  
Cell Adhesion ◽  
Pure Titanium ◽  
Osteoblastic Cell ◽  
Commercially Pure Titanium ◽  
Commercially Pure ◽  
Titanium Surfaces

The role of phase transformation mechanism on the grain boundary network in a commercially pure titanium

2020 ◽  
Vol 169 ◽  
pp. 110640
Author(s):  
Ehsan Farabi ◽  
Vahid Tari ◽  
Peter D. Hodgson ◽  
Gregory S. Rohrer ◽  
Hossein Beladi
Keyword(s):  
Phase Transformation ◽  
Grain Boundary ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Transformation Mechanism ◽  
Commercially Pure

EBSD Investigation of Cold Rolled and Recrystallized Titanium

2013 ◽  
Vol 753 ◽  
pp. 289-292
Author(s):  
Mariusz Jedrychowski ◽  
Jacek Tarasiuk ◽  
Brigitte Bacroix
Keyword(s):  
Thermomechanical Treatment ◽  
Microstructure Evolution ◽  
Texture Evolution ◽  
Pure Titanium ◽  
Commercially Pure Titanium ◽  
Topological Maps ◽  
Air Atmosphere ◽  
Commercially Pure ◽  
Cold Rolled

EBSD investigation of texture and microstructure evolution during a complete thermomechanical treatment of commercially pure titanium (HCP-Ti) is presented. Titanium was cold rolled to reach various degrees of thickness reduction: 20%, 40% and 60%. Next, annealing in air atmosphere was conducted at different conditions to achieve the recrystallized state. EBSD topological maps were measured on RD-TD and RD-ND surface of each sample. Strong heterogeneity of deformed titanium microstructures is described with focus on the important role of twinning mechanisms. Texture evolution in investigated titanium appears to be limited, especially in recrystallized state. However some subtle mechanisms are discussed.

Regularities of the formation and the role of secondary structures in the improvement of the wear resistance of commercially pure titanium VT1-0

2012 ◽  
Vol 33 (3) ◽  
pp. 184-189 ◽  
Author(s):  
B. P. Gritsenko ◽  
Yu. F. Ivanov ◽  
N. N. Koval’ ◽  
K. V. Krukovskii ◽  
N. V. Girsova ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Pure Titanium ◽  
Secondary Structures ◽  
Commercially Pure Titanium ◽  
Commercially Pure

Underwater Laser Turning of Commercially-Pure Titanium

2020 ◽  
Vol 861 ◽  
pp. 23-27
Author(s):  
Wisan Charee ◽  
Viboon Tangwarodomnukun
Keyword(s):  
Surface Roughness ◽  
Laser Ablation ◽  
Laser Power ◽  
Pure Titanium ◽  
Ambient Air ◽  
Machining Process ◽  
Commercially Pure Titanium ◽  
Turning Process ◽  
Commercially Pure ◽  
Underwater Laser

Underwater laser machining process is a material removal technique that can minimize thermal damage and offer a higher machining rate than the laser ablation in ambient air. This study applied the underwater method associated with a nanosecond pulse laser for turning a commercially pure titanium rod. The effects of laser power, surface speed and number of laser passes on machined depth and surface roughness were investigated in this work. The results revealed that a deeper cut depth and smoother machined surface than those obtained from the laser ablation in ambient air were achievable when the underwater laser turning process was applied. The machined depth and surface roughness were found to significantly increase with the laser power and number of laser passes. The findings of this study can disclose the insight as well as potential of the underwater laser turning process for titanium and other similar metals.

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