Nickel alloying of carbon steel is used to enhance strength and toughness. the weld metal via solid wire presents several difficulties as highlighted previously, such work hardening in manufacturing feeding through SAW mechanism, expensive time consuming multiple formulations. The application nickel aluminium powders unconstrained format, meaning not fluxed cored or wire, simplify alloying. Al ...

  Objective: Orthodontic wires should have high resistance against corrosion in the oral environment. Since the effect of pH on corrosion has been well recognized, this study sought to assess and compare the electrochemical corrosion of orthodontic brackets and wires of different brands in acidic artificial saliva.   Methods: This in vitro experimental study was conducted on 24 mandibular centr...

The aim of this clinical and confocal laser scanning microscopic study was to compare the effects of two frequently used archwires on tooth movement and root resorption. A total of 84 premolars in 27 individuals (10 boys, 17 girls, with a mean age of 12.5 years) was moved buccally with an experimental fixed orthodontic appliance. In a split mouth experimental design the premolar on one side was...

AIM The aim of the study is to investigate the galvanic corrosion potential of metal injection molding (MIM) brackets to that of conventional brackets under similar in vitro conditions with nickel-titanium and copper nickel-titanium archwires. MATERIALS AND METHODS Twenty-five maxillary premolar MIM stainless steel brackets and 25 conventional stainless steel brackets and archwires, 0.16 inch...

In recent years, stainless steel cladding applications have increased in industrial environments due to this process allows anti-corrosive surfaces be produced from low cost materials, such as carbon steel or low alloy steels. However, to ensure the final quality of the claddings, it is important to know the welding parameters’ effects on the process outputs. This contributes to an appropriate ...

recently, bulk nano-structured materials produced by severe plastic deformation (spd) have attracted scientists attention.  materials produced by spd are of great importance because of (1) non-porous structure, (2) great mechanical properties such as high strength and toughness and (3) proper dimension for mechanical and physical testing.  several methods have been introduced for imposing the s...

A stainless-steel mesh loaded with nickel catalyst was produced and used for the pyrolysis-catalysis of waste high-density polyethylene with the aim of producing high-value carbon products, including carbon nanotubes (CNTs). The catalysis temperature and plastic-to-catalyst ratio were investigated to determine the influence on the formation of different types of carbon deposited on the nickel-s...

The evolution of microstructure and texture during wire drawing of pearlitic steel was studied using scanning electron microscopy and X-ray diffraction. Wire drawing induces elongation of ferrite grains with the development of <110> fibre texture. The cementite lamellae also have a tendency to reorient themselves along the wire axis with increasing strain. Viscoplastic self-consistent simulatio...