Results 21 to 30 of about 808,635 (307)
Where are the missing cosmic metals ? [PDF]
, 2005 The majority of the heavy elements produced by stars 2 billion years after the Big Bang (redshift z~3) are presently undetected at those epochs. We propose a solution to this cosmic `missing metals' problem in which such elements are stored in gaseous ...
A +5 more
core +2 more sources
Metals, 2022 AA6010 in the F temper was investigated using a Gleeble 3800 test rig across a range of temperatures (350–550 °C) and strain rates (1 × 10−1 s−1 1 × 101 s−1) to identify optimal forming conditions.
Scott Taylor +3 more
doaj +1 more source
Finite Element Analysis on Experimental Stretch Forming Process of AA2014 Alloy at 423 to 623K Temperatures [PDF]
E3S Web of Conferences, 2023 Sheet metal forming processes are extremely important in the production of many different items. However, the issue of plastic instability, which frequently results in damaged goods, still exists in this industry. To solve this problem during production,
Lade Jayahari +6 more
doaj +1 more source
Effect of initial blank temperature in hot press forming towards 22MnB5 springback failure
Journal of Mechanical Engineering and Sciences, 2019 The springback failure of ultra-high strength boron steel (22MnB5) in hot press forming (HPF) process was characterized under bending and membrane conditions.
C. H. Ng +5 more
doaj +1 more source
Numerical and Experimental Study on Hot Forming by Partition Cooling of 38MnB5Nb
Metals, 2022 Tailored properties hot forming of 38MnB5Nb by partition cooling can be configured on-demand. A gradient distribution microstructural characteristic can be generated by undertaking an appropriate cooling-tempering process for the regions with different ...
Xiao Liang +11 more
doaj +1 more source
Microstructure and plastic properties of mg-Li alloys smelted in vacuum induction furnaces after hot working [PDF]
, 2017 The paper analyses the characteristics of plasticity and microstructure of magnesium alloys with lithium meant for hot plastic working with different lithium content. The alloys were prepared in conditions of vacuum smelting. Achieved ingots were subject
Hadasik, Eugeniusz +3 more
core +1 more source
A Review of Microstructural Evolution and Modelling of Aluminium Alloys under Hot Forming Conditions
Metals, 2020 Microstructural evolution during hot forming of aluminium alloys plays a critical role in both the material flow behaviour during the deformation and the post-form mechanical properties in service.
Jiaxin Lv +4 more
doaj +1 more source
Sensors, 2021 A design study of automatic line-to-production of a new generation of car body structures compliant with the Industry 4.0 concept is described in this paper.
Ireneusz Wrobel, Marcin Sidzina
doaj +1 more source
Metals, 2021 Residual stresses resulting from hot-forming processes represent an important aspect of a component’s performance and service life. Considering the whole process chain of hot forming, the integrated heat treatment provided by a defined temperature ...
Bernd-Arno Behrens +5 more
doaj +1 more source
How Do Galaxies Get Their Gas? [PDF]
, 2004 We examine the temperature history of gas accreted by forming galaxies in SPH simulations. About half the gas shock heats to roughly the virial temperature of the galaxy potential well before cooling, condensing, and forming stars, but the other half ...
Dave, Romeel +3 more
core +3 more sources