Results 31 to 40 of about 285,399 (235)

Development of Warm Forging Method for Magnesium Alloy

MATERIALS TRANSACTIONS, 2004
A new warm forging method for magnesium alloys is proposed by taking their material properties into consideration. Since the ductility of Mg alloys is low at room temperature, the forging operation is conducted in the temperature range of 200-400°C. In the warm forging of Mg alloys, the billet is easily cooled down in the die cavity before the onset of
Matsumoto, Ryo, Osakada, Kozo
openaire   +2 more sources

AA7050 Al Alloy Hot-Forging Process for Improved Fracture Toughness Properties

Metals, 2019
The conventional heat-treatment standard for the industrial post hot-forging cycle of AA7050 is regulated by the AMS4333 and AMS2770N standards. An innovative method that aimed to improve toughness behavior in Al alloys has been developed and reported ...
Giuliano Angella, Andrea Di Schino, Riccardo Donnini, Maria Richetta, Claudio Testani, Alessandra Varone   +5 more
doaj   +1 more source

Aza‐Büchner–Curtius–Schlotterbeck Reaction Enables Selective Construction of Quaternary Carbon Centers

Angewandte Chemie International Edition, EarlyView.
We introduce the Aza‐Büchner–Curtius–Schlotterbeck (ABCS) reaction: A mild, catalyst‐free method for homologating aryl imines. Diverging from the traditional BCS mechanism, the diazo intermediate undergoes selective C─C insertion to form an all‐carbon quaternary center.
Simon O. Angerer, Vincent George, Aryaman Pattanik, Gaia Carpentiero, Tereza Morcinková, Julia Rehbein, Burkhard König   +6 more
wiley   +1 more source

Influence of deformation on the kinetics of phase transformation in a forging steel during warm working

Materials Research, 2004
Dilatometric techniques were used to determine the start and finish transformation heating temperatures for a carbon steel (0.30% C - 1.5% Mn). The mechanical behavior of the steel was measured by torsion testing in the temperature range of 700 to 820 °C
Mauro Aparecido Ferreira de Oliveira, Alberto Moreira Jorge Jr, Oscar Balancin   +2 more
doaj   +1 more source

The situated professional: Preservice teachers' profiling of globally competent teachers and visions of their ‘possible professional self’

British Educational Research Journal, EarlyView.
Abstract In response to globalisation, teacher education programmes worldwide are tasked with preparing globally competent teachers (GCTs). Prevailing conceptions of global competence are largely derived from Western‐centric humanistic, neoliberal and transformative narratives, creating a complex landscape for teacher identity formation.
Ji Ying
wiley   +1 more source

New digitalization approaches in forging technology

, 2022
Forming technology has a high potential for digitalization in the course of Industry 4.0. In particular for bulk metal forming, new approaches to digital process monitoring, process control and workpiece tracking can make a major contribution to ...
Deliktas, Tahsin, Schott, Anna, Liewald, Mathias, Jakobs, Julia, Karadogan, Celalettin, Amann, Tobias   +5 more
core   +1 more source

Beyond Conventional Cost–Benefit Analysis to Integrated Sustainability Assessment in Additive Manufacturing

Business Strategy and the Environment, EarlyView.
ABSTRACT Additive manufacturing (AM) adoption provides numerous benefits, including decentralised production, design flexibility, mass customisation, reduced material waste and lightweight designs. However, AM investment decisions are complex and challenging for manufacturers, and limited knowledge exists about the holistic assessment of relevant costs
Dilupa Nakandala, Premaratne Samaranayake, Muhammad Salman Asif, Richard Yang, Pauline Ross, Abdul Babar   +5 more
wiley   +1 more source

Nucleophilic Reactions of Cyclobutenones and the Related 4,4‐Dichlorocyclobutenone Derivatives

European Journal of Organic Chemistry, EarlyView.
Cyclobutenone derivates and their 4,4‐dichloro counterparts have an uninterrupted attention as useful synthons in the synthesis of complex organic molecules. Their nucleophilic reactions remain underexplored. This review brings attention to these reactions, whose outcome is not straightforward.
Sarah J. Wright, Muhluri H. Mthombeni, Songeziwe Ntsimango   +2 more
wiley   +1 more source

Thermal exchange effects on steel thixoforming processes [PDF]

, 2010
Steel thixoforging is an innovative semi-solid forming process. It allows the manufacturing of complex parts and minimises the forming load. This work aims to identify and characterise the main feature zones of a thixoforging part.
LANGLOIS, Laurent, BECKER, Eric, BIGOT, Régis   +2 more
core   +1 more source

Prevalence of insulin dysregulation in a sport horse population as determined by traditional and stall‐side testing

Equine Veterinary Journal, EarlyView.
Abstract Background The prevalence of insulin dysregulation (ID) has not been investigated in sport horses. Stall‐side insulin assays offer convenience but need further validation. Objectives To determine the prevalence of and risk factors for ID in a sport horse population using an oral sugar test (OST) and assess agreement between stall‐side and ...
Kimberly L. Hallowell, Caitlyn R. Horne, Cary S. Miller, Sara R. Tufts, Katarzyna Dembek, Kim R. Love, Andrew W. van Eps, Lauren V. Schnabel   +7 more
wiley   +1 more source