Results 31 to 40 of about 687,052 (308)

Strain-rate sensitivity of high-entropy alloys and its significance in deformation

open access: yesMaterials Research Letters, 2019
Strain-rate dependence in face centered cubic high entropy alloys still remains controversial despite extensive efforts on this topic. Strain-rate sensitivity reflects underlying thermally-activated deformation and the controversy boils down to the ...
Jongun Moon   +5 more
doaj   +1 more source

Semisolid processing characteristics of AM series Mg alloys by rheo-diecasting [PDF]

open access: yes, 2006
The official published version of this Article can be found at the link below - Copyright @ 2006 ASM InternationalAn investigation has been made into the solidification behavior and microstructural evolution of AM50, AM70, and AM90 alloys during rheo ...
A. Das   +22 more
core   +1 more source

Cryogenic strength improvement by utilizing room-temperature deformation twinning in a partially recrystallized VCrMnFeCoNi high-entropy alloy

open access: yesNature Communications, 2017
CrMnFeCoNi high entropy alloys have high fracture toughness at cryogenic temperatures due to deformation twinning but twinning is not active in this alloy at room temperature. Here authors optimize composition and thermomechanical treatments to introduce
Y. H. Jo   +7 more
doaj   +1 more source

Two-phase coexistence in Fe–Ni alloys synthesized by ball milling [PDF]

open access: yes, 1996
We used mechanical alloying with a Spex 8000 mixer/mill to synthesize a series of Fe100–xNix alloys from x=0 to x=49. The Spex mill was modified so that it could also operate at a reduced milling intensity, and we compared the alloys synthesized after ...
Fultz, B., Hong, L. B.
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Mechanistic origin of high retained strength in refractory BCC high entropy alloys up to 1900K

open access: yes, 2019
The body centered cubic (BCC) high entropy alloys MoNbTaW and MoNbTaVW show exceptional strength retention up to 1900K. The mechanistic origin of the retained strength is unknown yet is crucial for finding the best alloys across the immense space of BCC ...
Curtin, William A., Maresca, Francesco
core   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

Japanese irogane alloys and patination – a study of production and application [PDF]

open access: yes, 2009
Japanese metalworkers use a wide range of irogane alloys (shakudo, shibuichi), which are colored with a single patination solution (niiro). This approach allows different alloys to be combined in one piece and patinated, producing a multi-colored piece ...
Jones, Alan Hywel, O'Dubhghaill, Coilin
core  

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Hot deformation behaviors and microstructure evolution of Mg–Si–Sr alloy

open access: yesMaterials Research Express, 2020
The hot deformation behavior and microstructural evolution of as-extruded Mg-0.55 wt.%Si-0.75 wt.%Sr alloys at 250 °C with the compressive strain rate of 1 s ^−1 , 0.1 s ^−1 , 0.01 s ^−1 and 0.001 s ^−1 were investigated via electron backscatter ...
Lei Zhang   +4 more
doaj   +1 more source

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