Results 91 to 100 of about 87,366,173 (252)

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High‐Entropy Alloys

Advanced Science, EarlyView.
A high‐strength lightweight refractory high‐entropy alloy achieves extraordinary ductility owing to the introduction of coherent chemically gradient ordered nanodomains (CGONs). The CGONs not only serve as effective barriers to dislocation motion (strengthening) but also significantly promote dislocation nucleation and multiplication (ductilizing) upon
Wei Zhang, Dingshun Yan, Yong Zhang, Zhiming Li   +3 more
wiley   +1 more source

Brittle-ductile transition in vanadium [PDF]

, 1958
Mechanical tests have been made on two grades of vanadium over a range of temperatures below 25°C to establish the existence of a brittle-ductile transition and the temperature range over which it occurs. Also, the effect of small amounts of metallic and
Loomis, Benny, Carlson, O.
core  

The ductile to brittle transition behavior in a Zr-based bulk metallic glass

, 2015
The ductile to brittle transition (DBT) of crystalline metals and alloys has been extensively studied in scientific and engineering fields. However, the DBT of non-crystalline metals and alloys such as bulk metallic glasses (BMGs) remains poorly ...
Li G, Jiang F, Jiang MQ(蒋敏强), He L, Sun J, Jiang, F (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.   +5 more
core   +1 more source

Diastereomeric Monomers Enable Anion‐Exchange Membranes With Controlled Local Polymer Backbone Flexibility and High Conductivity

Advanced Science, EarlyView.
Stereochemistry enables control of ion‐exchange membrane properties via local backbone flexibility without altering the polymer composition. Syn‐enriched membranes show higher water uptake and improved water‐electrolysis performance, whereas anti‐enriched membranes exhibit higher hydration efficiency and improved mechanical properties.
Si Chen, Xuchen Lyu, Triet Nguyen Dai Luong, Patric Jannasch   +3 more
wiley   +1 more source

A Sustainable Bio‐Based Epoxy Thermoset as a High‐Performance Alternative to BPA‐Based Resins

Advanced Science, EarlyView.
A rigid–flexible bio‐based epoxy network integrates soybean oil, lignin, and maleic anhydride to overcome the strength–toughness–sustainability trade‐off of conventional BPA epoxy. The thermoset delivers excellent performance as both a structural adhesive and a matrix for glass‐fabric composites, while enabling pH‐responsive degradation, environmental ...
Jiyun Qi, Xinyi Hui, Xipeng Zhang, Jia‐Long Wen, Tong‐Qi Yuan   +4 more
wiley   +1 more source

Ductile-to-brittle transition behavior and determination method in X80 pipeline girth welds utilizing the master curve method

Hanjie xuebao
The fracture toughness distribution of X80 high-strength pipeline steel girth welds in the ductile-to-brittle transition region was systematically studied using the master curve method. According to ASTM E1921-97 Standard Test Method for Determination of
Baoming GONG, Chenyan ZHAO, Haiwei ZHAO, Zifeng ZHAO, Lianshuang DAI, Caiyan Deng   +5 more
doaj   +1 more source

Temperature-dependent properties of single crystal diamond nanopillars

Materials & Design
Diamonds possess significant hardness and durability; however, any attempt to deform them typically leads to brittle fracture. In this study, we comprehensively characterize nanoscale diamond at elevated temperatures, using a combination of experimental ...
Manish Jain, Rajaprakash Ramachandramoorthy, Hangman Chen, Marcell Kiss, Niels Quack, Laszlo Pethö, Amit Sharma, Penghui Cao, Gerhard Dehm, Johann Michler   +9 more
doaj   +1 more source

Ductile B2 Intermetallics‐Driven Strength‐Ductility Synergy in Heterolaminated Multi‐Principal Element Alloys

Advanced Science, EarlyView.
Intrinsic phase toughening transforms a brittle B2 intermetallic into a plastically deformable, load‐bearing phase, while a heterogeneous laminated architecture suppresses strain localization and interface cracking. The synergy between ductile intermetallics and mesoscale heterogeneity establishes a general design strategy for breaking the long ...
Lu Yang, Feilong Jiang, Qiming Zhuang, Dingshan Liang, Jiasi Luo, Kangjie Chu, Junhua Luan, Zengbao Jiao, Robert O. Ritchie, Fuzeng Ren   +9 more
wiley   +1 more source

Self‐Assembly of Organic–Inorganic Copolymers Toward Bio‐Inspired Cementitious Composites

Advanced Science, EarlyView.
Organic–inorganic copolymerization of calcium silicate hydrate and thioctic acid produces a self‐organized nanocomposite inspired by the disordered collagen–mineral architecture of trabecular bone. The resulting material combines a compressive strength above 300 MPa with intrinsic physical reprocessibility, retaining over 80% of its strength and energy
Zonglin Xie, Suning Li, Fuwen Zhong, Gongkun Xiang, Mustapha Jamaa Garba, Yi Tian, Jun Wu, Zhiwu Yu, Qiang Yuan   +8 more
wiley   +1 more source

The slip-rate, state-, temperature-, and normal-stress-dependence of fault frictionKey points

Earthquake Science
The mechanics of slow-slip events and earthquakes is controlled by the constitutive behavior of rocks in active fault zones, which is sensitive to many factors encompassing lithology, temperature, confining and pore-fluid pressure, and slip-rate, among ...
Sylvain Barbot
doaj   +1 more source