Results 51 to 60 of about 5,352 (232)

Geometric model for the critical-value problem of nucleation phenomena containing the size effect of nucleating agent [PDF]

, 2005
Nucleation is of great concern in many cases—for example, the production of artificial rainfall and the synthesis of advanced amorphous alloys. Although exact solutions have been well known to both homogeneous nucleation and heterogeneous nucleation ...
Johnson, W. L., Xu, Donghua
core   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Effect of microalloying on hydrogen embrittlement resistance of 125ksi grade petroleum pipe

Journal of Materials Research and Technology
In this study, the influence of incorporating equimolar proportions of vanadium, titanium, and niobium microalloying elements into C110 steel on the hydrogen embrittlement susceptibility of oil casing steel was investigated at a strength level of 125 ksi.
Chao Wang, Zihan Wu, Yunkai Wang, Jiaxin Li, Hua Duan, Xin Wang, Jian Kang, Yunjie Li, Guo Yuan   +8 more
doaj   +1 more source

Hot ductility of TiNb IF steel slab after hot torsion testing [PDF]

, 2019
The aim of the work was to evaluate the hot ductility loss in TiNb stabilized IF steel directly from the continuously-cast slab using hot torsion testing (plastometry) in the temperature range 600-1250 degrees C according to the basic programme, and also
Bořuta, Aleš, Dobrovská, Jana, Fujda, Martin, Girman, Vladimír, Jonšta, Petr, Jonšta, Zdeněk, Konrádyová, Jana, Longauer, Svätoboj, Longauerová, Margita, Matvija, Miloš, Vojtko, Marek   +10 more
core   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Effect of V–Ti multi-microalloying on enhancing hydrogen embrittlement resistance in hot-stamping steel

Journal of Materials Research and Technology
Hydrogen embrittlement (HE) has become a significant concern that limits the usage of ultra-high strength hot-stamping steel. In this work, the utilization of a novel approach employing V–Ti multi-microalloying has yielded substantial improvements in the
Mengjie Gao, Zhuo Cheng, Linshuo Dong, Shuize Wang, Yuhe Huang, Xinping Mao   +5 more
doaj   +1 more source

The bi-layered precipitate phase zeta in the Al-Ag alloy system

, 2017
The Al-Ag system is thought to be a well-understood model system used to study diffusional phase transformations in alloys. Here we report the existence of a new precipitate phase, zeta, in this classical system using scanning transmission electron ...
Bourgeois, Laure, Medhekar, Nikhil V., Rosalie, Julian M., Zhang, Zezhong   +3 more
core   +1 more source

Sustainable Materials Design With Multi‐Modal Artificial Intelligence

Advanced Science, EarlyView.
Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu, Tianshuo Wei, Yan Ge, Bo Peng, Yue Li, Maolin Wang, Peng Wen, Chao Yang, Ye Wei   +8 more
wiley   +1 more source

Casting Fe-Al-based intermetallics microalloyed with Li and Ag [PDF]

, 2016
The effect on the mechanical properties at room temperature of Li and Ag additions to the Fe–Al (40 at.%)-based alloy produced by conventional casting were evaluated in this work.
Bedolla Jacuinde, A., Carbajal G. Carbajal-De la Torre, G., Espinosa Medina, M.A., González Rojas, Hernan Alberto, Romo Castañeda, J.C., Villagomez Galindo, Miguel   +5 more
core   +2 more sources

Mixing Behavior of Natural Gas and Hydrogen in a High‐Efficiency Vane (HEV) Static Mixer

Energy Science &Engineering, EarlyView.
Static mixers play a crucial role in the safe transport of hydrogen‐blended natural gas. Computational fluid dynamics (CFD) was employed to investigate the effects of structural parameters of the HEV static mixer on the mixing behavior and homogeneity of natural gas and hydrogen. The modeling approach was well validated against experimental data.
Xiang Zhou, Jun Zheng, Weiqing Xu, Dewen Kong, Yan Shi, Maolin Cai   +5 more
wiley   +1 more source