Results 21 to 30 of about 51,053 (234)
Thermo-micro-mechanical simulation of bulk metal forming processes
, 2019 The newly proposed microstructural constitutive model for polycrystal viscoplasticity in cold and warm regimes (Motaman and Prahl, 2019), is implemented as a microstructural solver via user-defined material subroutine in a finite element (FE) software ...
Haase, Christian +3 more
core +1 more source
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 +5 more
doaj +1 more source
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 +2 more
doaj +1 more source
Sustainable Materials Design With Multi‐Modal Artificial Intelligence
Advanced Science, EarlyView.Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu +8 more
wiley +1 more source
An influence of grain refinement method on grain size and internal inerface energy distributions of steel 12GBA [PDF]
, 2016 Grain-subgrain structure sizes and internal interface energy of steel 12 GBA were estimated in three structural states: coarse grained, after multi-axes isothermal forging and warm rolling using scanning tunnel microscopy.
Кузнецов, Павел Викторович +2 more
core
Ultrafine grain evolution in a Cu-Cr-Zr alloy during warm multidirectional forging [PDF]
, 2014 The microstructure evolution and the deformation behavior of a Cu-0.3%Cr-0.5%Zr alloy subjected to multidirectional forging at a temperature of 673 K under a strain rate of about 10-³ s-¹ were studied. Following a rapid increase in the flow stress during
Belyakov, A. +3 more
core +1 more source
‘Let's talk about the weather’: The activist curriculum and global climate change education
British Educational Research Journal, EarlyView.Abstract Activist movements have garnered significant global attention on a range of sustainability issues, often involving collectives of citizens coming together. Invoked is the idea of citizens informed to act, emerging not from a common‐sense understanding of everyday life, but rather from a deep political understanding of the world—one that is ...
Richard Pountney
wiley +1 more source
Izkovki iz magnezijevih zlitin za avtomobilsko industrijo [PDF]
, 2015 The paper presents an investigation of the effect of process variables and material condition on the forgeability of magnesium wrought alloys of the Mg-Al-Zn group.
Greger, Miroslav +2 more
core
Carbon Energy, EarlyView.Dual‐nickel atom catalysts (Ni‐DACs) are developed to stabilize unsaturated Ni─N3 atomic sites by constructing N3Ni─NiN3 dual‐atom structures from coal. Benefiting from the modulated electronic structure that optimizes intermediate adsorption, Ni‐DACs outperform Ni‐SACs in CO2 electroreduction, achieving a max FECO of 98.6% at −0.8 V vs RHE and a TOF ...
Jiabao Niu +8 more
wiley +1 more source
Effect of Surface Treatment on Warm Forging Die
DENKI-SEIKO[ELECTRIC FURNACE STEEL], 2007 Recently, a warm forging process is remarkable from the points of view in near net shaping and abolishment of additional heat treatment by micro-structural controlling. In generally, a die life in forging decreases accompany with the increase of forging temperature. The die life in hot forging is only about 1/10∼1/100 compared with that in cold forging,
Takuma Okajima +2 more
openaire +2 more sources