Advanced high-performance filler metals for wire arc additive manufacturing (WAAM) exist on the market already. Nevertheless, these high-strength steels are not yet widely used in industrial applications due to limited knowledge of cold-cracking susceptibility, welding residual stresses, and therefore sufficient safety terms operation. High stresses promote risk, especially steels, as result a ...

NOT AVAILABLE 11:00 AM RAPID PREDICTION OF TIME-TEMPERATURE-TRANSFORMATION DIAGRAMS OF LOW AND MEDIUM CARBON MULTICOMPONENT ALLOY STEELS BY A COMPUTER EXPERT SYSTEM: Zhenbo Zhao1; Derek O. Northwood2; Cheng Liu3; Yunxu Liu3; Qihui Zhu3; 1University of Windsor, Mech. & Mats. Eng., 401 Sunset Ave., Windsor, Ontario N9B 3P4 Canada; 2Ryerson Polytechnic University, Eng. & Applied Sci., 350 Victoria...

The thermal expansion of the CaCu3Ti4O12 ceramics has been measured over a wide temperature range 120–1200 K. The high quality of the samples under study has been confirmed by good agreement of the results of measurements of the heat capacity in the range 2–300 K and in the vicinity of the phase transi tion of magnetic nature at 25 K with the data for the single crystal. No anomalies in the the...

Silicon-based electrodes are promising candidates to enable the next generation of Lithium-ion batteries with high energy densities on cell level beyond 350 Wh kg −1 [1, 2]. Nevertheless, commercialization silicon-based is still hindered due large volume expansion during cycling up 300% [3]. This upon repeated (de-)lithiation silicon particles worsens electrode integrity by causing isolation ac...

Carbides, borides and nitrides of high melting transition metals were synthesized by high energy ball milling of elemental powder mixtures. The obtained hard material phases show a nanocrystalline structure with a saturation value of the crystal sizes between 7-8 nm. The kinetics of the reaction were investigated, and the nanocrystalline powders were densified by HIP. Introduction The formation...

In any repair of a tooth with permanent restorative materials, the interface is always a sensitive region. The appearance of adhesive materials was a great step forward in dealing with the problems of this region and improving the overall performance of the restorations. However, contemporary adhesive materials do have a major disadvantage, namely that their durability is limited, a limitation ...

THE first recorded citation of the word ‘‘bainite’’ is in an article published 12 years after Davenport and Bain introduced isothermal transformation as a technique to study the progressive evolution of phases as a function of time and temperature. This long interval is a reflection of the fact that although the phase was named in 1934, it was not used even by Bain and his coworkers in articles...