A comparative study of corrosion resistance of biocompatible coating on titanium alloy and stainless steel

2019 ◽  
Vol 238 ◽  
pp. 121923 ◽  
Author(s):  
Shalinder Kaur ◽  
Sangeeta Sharma ◽  
Niraj Bala
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Comparative Study ◽  
Biocompatible Coating

Characteristics of Dental Microsurgery Instruments for a Database System

2015 ◽  
Vol 760 ◽  
pp. 51-56
Author(s):  
Diana Irinel Băilă ◽  
Oana Catalina Mocioiu ◽  
Marian Gheorghe
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Database System ◽  
Good Corrosion Resistance ◽  
Dental Instruments ◽  
Aging Resistance ◽  
Diamond Powders ◽  
High Degree ◽  
Cobalt Chrome

In dental microsurgery, different dental instruments are used for teeth microsurgery and related diseases. The dental instruments materials are very different, e.g., plastics, stainless steel, titanium alloy, cobalt chrome alloys, diamond powders. The dental instruments materials must be nontoxic for the human body, with good corrosion resistance, mechanical strength and aging resistance, as well a high degree of cleanliness to allow sterilization in good conditions. Few representative dental microsurgery instruments, as well as relevant characteristics of some specific materials are presented.

Tribological performance of titanium nitride coatings: A comparative study on TiN-coated stainless steel and titanium alloy

Wear ◽  
2019 ◽  
Vol 422-423 ◽  
pp. 68-80 ◽  
Author(s):  
Magdalena Łępicka ◽  
Małgorzata Grądzka-Dahlke ◽  
Daniel Pieniak ◽  
Kamil Pasierbiewicz ◽  
Kamila Kryńska ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Titanium Alloy ◽  
Comparative Study ◽  
Titanium Nitride ◽  
Tribological Performance ◽  
Nitride Coatings

A Comparative Study on the Oxidation of Fe-25Cr-7Ni-4Mo and Fe-25Cr-7Ni-2Mo-4W Steels

2014 ◽  
Vol 620 ◽  
pp. 453-456
Author(s):  
Shun Myung Shin ◽  
Jei Pil Wang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Comparative Study ◽  
Oxide Layer ◽  
Alloy Composition ◽  
Ion Diffusion ◽  
Wide Range ◽  
Steel Grades ◽  
Corrosive Environments

Stainless steel materials (FeCr and FeCrNi-based alloys) are employed in a wide range of modern applications due to their ability to withstand corrosive environments while maintaining good mechanical properties. Their corrosion resistance originates from Cr-rich oxide layer which serves as a barrier against ion diffusion between the alloy and the ambient phase. Custom steel grades can be designed for specific applications by optimizing their properties throughout alloy composition [1].

scholarly journals Corrosion and Micromorphological Analysis of Temporary Stainless Steel and Titanium Alloy Anchorage Devices

2020 ◽  
Author(s):  
Carolina Assis do Nascimento
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Electrochemical Impedance ◽  
Corrosion Current ◽  
Open Circuit ◽  
X Ray ◽  
Potentiodynamic Polarization Curves ◽  
Surface Micromorphology ◽  
Micromorphological Analysis

The aim of this study was to compare the surface micromorphology and corrosion resistance of diferent temporary anchoragedevices (TADs) composed of titanium alloy (SIN®) and stainless steel (DAT Steel® and Bio Ray®). Ten samples of eachTAD were submitted to qualitative analyses using energy-dispersive and scanning electronic microscopy before and afterimmersion in artifcial saliva (1500 ppm of fuoride) for 30 days. The chemical analysis was done by X-ray fuorescence,and the corrosion tests were performed by electrochemical means (open circuit potential—OCP, potentiostat, and electrochemical impedance spectroscopy—EIS, using anodic potentiodynamic polarization curves). Passive flm resistance (PFR)and corrosion current were established. The corrosion rate was determined by the mass loss test. Greater smoothness andfewer machining defects were observed for the stainless steel TAD before artifcial saliva immersion. Comparatively, highercorrosion resistance was found for titanium alloy TAD after immersion in saliva. There was no release of ions into the TADwhen immersed in artifcial saliva. ANOVA and Tukey tests showed that OCP (V) was signifcantly lower for the titaniumalloy TAD (p=0.030) than the stainless steel brands. Epite (V) and Epite−OCP (V) were signifcantly higher for the titaniumalloy TAD (p=0.0009 and p=0.0005, respectively). Stainless steel TADs presented lower roughness surface than titaniumalloy TAD, although the latter presented higher corrosion resistance than the former

Comparative Study on the Corrosion Resistance of Fe-Based Amorphous Metal, Borated Stainless Steel and Ni-Cr-Mo-Gd Alloy

2006 ◽  
Vol 985 ◽  
Author(s):  
Tiangan Lian ◽  
Daniel Day ◽  
Phillip Hailey ◽  
Jor-Shan Choi ◽  
Joseph Farmer
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Amorphous Alloy ◽  
Comparative Study ◽  
Amorphous Metal ◽  
Melt Spun ◽  
Iron Based ◽  
Borated Stainless Steel

ABSTRACTIron-based amorphous alloy Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4 was compared to borated stainless steel and Ni-Cr-Mo-Gd alloy on their corrosion resistance in various high-[Cl-] solutions. The melt-spun ribbon of this iron-based amorphous alloy have demonstrated a better corrosion resistance than the bulk borated stainless steel and the bulk Ni-Cr-Mo-Gd alloy, in high-[Cl-] brines at temperatures 90ºC or higher.

Prominent Achievements of Laser Surface Treatment of Martensitic Stainless Steel and Alpha-Beta 6/4 Titanium Alloy

2018 ◽  
Vol 786 ◽  
pp. 87-97 ◽  
Author(s):  
A.A. Hussein ◽  
Samar Reda Al-Sayed ◽  
Salah I. Hassab Elnaby ◽  
Adel A. Nofal ◽  
Haytham Elgazzar
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Surface Treatment ◽  
Heat Input ◽  
Surface Engineering ◽  
Martensitic Stainless Steel ◽  
Laser Surface ◽  
Laser Surface Engineering

Conventional surface treatment processes are known to suffer from several limitations. Among them are energy consumption, complex heat treatment schedules and non-controllable heat affected zones. On the other side, when a high powered laser beam is used as a source of heat for surface treatment it will obviate most of these limitations. Laser surface engineering is one of these advanced surfacing technologies that receive growing interest to improve the surface properties of metals such as hardness, wear and corrosion resistance. Such treatments may be divided into two main categories: (i) those which only involve microstructural modification e.g. laser hardening and laser melting and (ii) other processes which lead to dual changes in microstructure and surface chemistry such as laser alloying and laser cladding. This paper comprises the experimental findings of two significant examples for laser surface engineering. The first study is concerned with surface hardening of AISI 416 martensitic stainless steel whereas the second study involves laser surface cladding of Ti-6Al-4V alloy. The outcome of the first work is a notable improvement of toughness at the same level of hardness and wear resistance as compared to the conventional hardening treatment. Additionally, the optimum condition for combined wear resistance, impact toughness and corrosion resistance was recorded at a laser heat input value of 21 J•mm-2. The second study is concerned with laser surface cladding of the titanium alloy with a powder blend composed of 60 wt% of WC and 40 wt% NiCrBSi alloy, by means of a high power Nd:YAG 2.2 kW laser. The best clad layers were obtained at a specific heat input of 60 J•mm-2. More than three-fold enhancement of the microhardness of the clad layers was achieved combined with a remarkable improvement of the alloy wear resistance.

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