Results 41 to 50 of about 166,459,501 (210)

High temperature rise dominated cracking mechanisms in ultra-ductile and tough titanium alloy

Nature Communications, 2020
Specific titanium alloys combine transformation-induced plasticity and twinning-induced plasticity for improved work hardening. Here, the authors show that these alloys also have an ultra-large fracture resistance and an unexpected fracture mechanism via
L. Choisez, L. Ding, M. Marteleur, H. Idrissi, T. Pardoen, P. J. Jacques   +5 more
doaj   +1 more source

Integration of macro- and microdamage mechanics for the performance evaluation of composite materials

, 2012
When subjected to mechanical loads, composite materials can generate complex configurations of multiple cracks that collectively change the average material response and thereby the performance, e.g., the fatigue life. Over many years, various approaches
Talreja, Ramesh,, Varna, Janis,
core   +1 more source

Mechanics of size-dependent materials [PDF]

, 2023
The main driving force in modern technology is to make systems of smaller dimensions and novel materials. This poses enormous technological challenges to manufacturing procedures, both at structural and microstructural levels.Onthe other hand, the ...
Trovalusci, Patrizia, Ghavanloo, Esmaeal, Fazelzadeh, S. Ahmad   +2 more
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Multimodal Microstructure and Mechanical Properties of AZ91 Mg Alloy Prepared by Equal Channel Angular Pressing plus Aging

Metals, 2018
Developing cost-effective magnesium alloys with high strength and good ductility is a long-standing challenge for lightweight metals. Here we present a multimodal grain structured AZ91 Mg alloy with both high strength and good ductility, prepared through
Zhenquan Yang, Aibin Ma, Huan Liu, Jiapeng Sun, Dan Song, Ce Wang, Yuchun Yuan, Jinghua Jiang   +7 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Improving Strength and Ductility of a Mg-3.7Al-1.8Ca-0.4Mn Alloy with Refined and Dispersed Al₂Ca Particles by Industrial-Scale ECAP Processing

Metals, 2019
Tailoring the morphology and distribution of the Al2Ca second phase is important for improving mechanical properties of Al2Ca-containing Mg-Al-Ca based alloys.
Ce Wang, Aibin Ma, Jiapeng Sun, Xiaoru Zhuo, He Huang, Huan Liu, Zhenquan Yang, Jinghua Jiang   +7 more
doaj   +1 more source

Synchronous improvement in mechanical properties and corrosion resistance of Mg-Gd-Ag-Zr alloy through nanoprecipitates

Journal of Materials Research and Technology, 2023
It is still challenging to synchronously improve mechanical properties and corrosion resistance through one strategy during developing Mg alloys. Introducing high-density precipitates is an effective and popular approach to strengthen Mg alloys, while ...
Bangjun Li, Jiapeng Sun, An Xu, Bingqian Xu, Lingling Wang, Jie Yuan, Guosong Wu   +6 more
doaj   +1 more source

Constitutive equations for thermo-elasto-plastic metallic materials undergoing large temperature variations [PDF]

, 2023
In the present work, a framework for the development of constitutive models for metallic materials in a thermomechanical context is proposed. Such a framework provides some guidelines to deal with processes involving large temperature variations, which ...
Charles Mareau, MAREAU, Charles
core   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source