When subjected to extended exposure to intermediate service temperatures, Cr–Mo steels, Ni–Cr steels, and 5% Ni steels can become embrittled, with an associated decrease in fracture toughness and a shift in the ductile-to-brittle transition temperature to higher temperatures. Two methods for the investigation of temper embrittlement phenomena are isothermal aging or the use of a step cooling ag...

Meltless recycling technique has been utilized to overcome the lack of primary resources, focusing on reducing the usage of energy and materials. Hot press was proposed as a novel direct recycling technique which results in astoundingly low energy usage in contrast with conventional recycling. The aim of this study is to prove the technical feasibility of this approach by characterizing the rec...

It remains challenging to achieve attractive mechanical strength and ductility in commercial 7xxx alloys fabricated by wire-arc additive manufacturing (WAAM). Here, we combine WAAM processing with solution artificial aging treatments functionalise their inherent age-hardening capabilities via microstructure controlling. The as-deposit 7055 alloy shows a heterogeneous bimodal grain size distribu...

High-strength aluminum alloys, such as the AA7075 alloy, offer great potential for lightweight construction thanks to their high specific strength. However, strength and low ductility are a challenge processing these materials. In our study, three different process routes (T6, W-Temper, O) roll forming of hat profile investigated experimentally in an FE-simulation. Since targeted production is ...

BACKGROUND One in three young people use cannabis in Canada. Cannabis use can be associated with a variety of health problems which occur primarily among intensive/frequent users. Availability and effectiveness of conventional treatment for cannabis use is limited. While Brief Interventions (BIs) have been shown to result in short-term reductions of cannabis use risks or problems, few studies h...

Background: Toys enable nursing care qualification and extension because they provide a range of possibilities that can temper children’s coping with several different situations, by which means they can express feelings and establish confidence ties with the professionals that care for them. However, there is evidence in the literature that toys are vehicles of microorganism transmission and a...