Results 51 to 60 of about 18,616 (264)

Strain hardenability of a gradient metallic alloy under high-strain-rate compressive loading

Materials & Design, 2019
Subjected to an impact loading, metallic alloys usually display strain softening due to the highly localized shear deformation accompanied by temperature rise, which causes the decrease of resistance to an applied loading and even catastrophic failure ...
Jitang Fan, Minqiang Jiang
doaj   +1 more source

Some aspects on geometric and matrix work-hardening characteristics of sintered cold forged copper alloy preforms [PDF]

Materials Research, 2013
Powder metallurgy (P/M) material subjected to plastic deformation results into densification, however the extended deformation would not only enhance the densification also supplements the strain hardening.
A Rajeshkannan, Devi S Rengamani, Alok Sharma   +2 more
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Study of the tensile behavior of AISI type 316 stainless steel using acoustic emission and infrared thermography techniques

Journal of Materials Research and Technology, 2015
Acoustic emission (AE) and infrared thermography technique (IRT) have been used to study the tensile behavior of AISI type 316 stainless steel. Strain rates of tensile testing were varied from 1.4 × 10−3 s−1 to 1.4 × 10−2 s−1. AE root mean square voltage
Thodamrakandy Haneef, Barid Baran Lahiri, Subramaniam Bagavathiappan, Chandan Kumar Mukhopadhyay, John Philip, Bhagi Purna Chandra Rao, Tamanna Jayakumar   +6 more
doaj   +1 more source

Loss of AMBRA1 activates MAPK and angiogenesis signaling pathways in melanoma cells

FEBS Open Bio, EarlyView.
Loss of AMBRA1 in melanoma cells activates multiple oncogenic pathways associated with tumor progression. Transcriptomic and protein network analyses revealed that AMBRA1 depletion enhances MAPK/ERK signaling, angiogenesis, TGF‐β/EMT signaling, and Wnt/axon guidance pathways.
Milad Ibrahim, Marco Corazzari, Iman Osman, Jane Armstrong, Noel Carter   +4 more
wiley   +1 more source

Strain hardening behaviors and strain rate sensitivity of gradient-grained Fe under compression over a wide range of strain rates [PDF]

Mechanics of Materials, 2016
In the present work, gradient-grained Fe was synthesized by means of surface mechanical grinding treatment, and then the compression behaviors of the coarse-grained Fe and the gradient-grained Fe were investigated under both quasi-static and dynamic loading conditions over a wide range of strain rates (from 5 x 10(-4) to 10(4) s(-1)).
Fuping Yuan, Ping Chen, Yanpeng Feng, Ping Jiang, Xiaolei Wu   +4 more
openaire   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

FEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana, Avigail Yariv, Tal Oppenheim, Hadar Amartely, Dana Reichmann, Oded Livnah   +5 more
wiley   +1 more source

Deformation Behaviors in Single BCC‐Phase Refractory Multi‐Principal Element Alloys under Dynamic Conditions

Advanced Science
The mechanical behavior and microstructural evolution of a BCC‐phase NbTaTiV refractory multi‐principal element alloy (RMPEA) is studied over a wide range of strain rates (10−3 to 103 s−1) and temperatures (room temperature to 850 °C).
Chanho Lee, Deva Prasaad Neelakandan, Dongyue Xie, Juntan Li, Chia‐Yi Wu, Aomin Huang, Leeseung Kang, Shuozhi Xu, Barton C. Prorok, Dong‐Joo Kim, Marc A. Meyers, Haixuan Xu, Peter K. Liaw, Yi‐Chia Chou, Ke An, George T. Gray III, Nan Li, Gian Song, Saryu J. Fensin   +18 more
doaj   +1 more source

Precipitate aspect ratio governs deformation pathway and strain hardening in lightweight austenitic steel

Materials Research Letters
B2 precipitates strengthen lightweight steels, but their morphology has been treated only descriptively. Here, we show that the B2 aspect ratio, tuned by annealing time, dictates the deformation pathway and strain-hardening rate.
Saikat Shyamal, Cheenepalli Nagarjuna, Wenjun Lu, Binbin He   +3 more
doaj   +1 more source

Kinematic and isotropic strain hardening in copper with highly aligned nanoscale twins

Materials Research Letters, 2018
The kinematic and isotropic strain hardening was investigated in columnar-grained copper with preferentially oriented nanoscale twins deformed at two different strain rates of 5 × 10−5 and 5 × 10−3 s−1.
Hao Wang, Zesheng You, Lei Lu
doaj   +1 more source