BACKGROUND The orthodontist seeks an archwire-bracket combination that has both good biocompatibility and low friction. Hence, the aim of this multicenter in vitro study was to evaluate and compare the frictional resistance generated between titanium (Ti), stainless steel (SS), ceramic and ceramic with metal insert (CMI) brackets with SS wires of varying dimensions in a specially designed appar...

Minor elements significantly influence the properties of stainless steel. In this study, a laser-induced breakdown spectroscopy (LIBS) technique combined with back-propagation artificial intelligence network (BP-ANN) was used to detect nickel (Ni), chromium (Cr), and titanium (Ti) in For data pre-processing, cubic spline interpolation wavelet threshold transform algorithms were perform baseline...

The structure of the oxide as a nucleus for intragranular ferrite formation in low O weld metal and mechanism Mn depleted zone (MDZ) at oxide/matrix interface were studied using liquid-tin quenched specimens high-temperature conditions during laser welding carbon Ti added steel. At high temperature 1720 K, MDZ is formed around complex oxides (Ti,Mn)3O5, (Ti,Mn)2O3, liquid phase (containing Si, ...

Enclosure 2 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completene...

low carbon steel samples were both shot into and inoculated with titanium in order to improve mechanical properties such as strength and toughness. sem observations and x-ray analyses revealed that titanium nitride and titanium carbonitride precipitates being scattered in the ferrite substrate reduce the grain size in all as-cast, heat-treated and as-rolled cases. the growth of the grains at hi...

Abstract The influence of commercial low carbon ferrochromium (LCFeCr) additions on the inclusion characteristics in Ti-containing ferritic stainless steel was studied by laboratory experiment this work. inclusions before and after FeCr alloy were investigated through systematic samplings microscopy investigations liquid steel. Different types detected evolution ( e.g. , composition, size, morp...

This software fits a multivariate proportional hazards model to interval censored event data by a Bayesian approach. Right and interval censored data and a lognormal or gamma frailty term can be fitted. An example is studied and the output analysed. 1 The basic model The data, based on a sample of size n, consists of the triple (ti, δi,xi), i = 1, . . . , n where ti is the time on study for sub...

Large (Ti, V) carbonitrides with size even up to tens of microns in autoparts steel 38MnVS6 are studied this work. A great number micron-sized found continuous casting billet, and the atomic ratios V/Ti mainly distributed range 0.130–0.200 an average value 0.171. The large have irregular morphologies, some obviously extending shape along dendrite boundary. 3D morphologies carbonitride after bei...

environmental degradation and economic growth are two important proofs in sustainable developmentwhich are followed by steel industry. in this case, energy and environmental damages as sustainabilitypatterns of environment have been investigated in three different dust collectors to select the mostenvironmentally suitable dust collector for electric furnace. in this article, the consumption amo...