Results 31 to 40 of about 13,933 (129)

The role of phase interface energy in martensitic transformations: a lattice Monte-Carlo simulation

, 2014
To study martensitic phase transformation we use a micromechanical model based on statistical mechanics. Employing lattice Monte-Carlo simulations and realistic material properties for shape-memory alloys (SMA), we investigate the combined influence of ...
Antretter, Thomas, Cailletaud, Georges, Fischlschweiger, Michael, Yastrebov, Vladislav A.   +3 more
core   +3 more sources

Acoustic emission characterization of sliding wear under condition of direct and inverse transformations in low-temperature degradation aged Y-TZP and Y-TZP-AL2O3

Friction, 2018
In this research, results of the investigation of the sliding friction and wear of yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) and Y-TZP-Al2O3 samples preliminarily subjected to low-temperature degradation are reported.
Nikolai L. Savchenko, Andrey V. Filippov, Sergei Yu Tarasov, Andrey I. Dmitriev, Evgeny V. Shilko, Aleksandr S. Grigoriev   +5 more
doaj   +1 more source

Direct Observation of Martensitic Phase-Transformation Dynamics in Iron by 4D Single-Pulse Electron Microscopy [PDF]

, 2009
The in situ martensitic phase transformation of iron, a complex solid-state transition involving collective atomic displacement and interface movement, is studied in real time by means of four-dimensional (4D) electron microscopy.
Andrault D., Bain E. C., Balandin V. Y., Barwick B., Belonoshko A. B., Bhattacharya K., Bolm C., Bos C., Bos C., Boyes E. D., Christian J. W., Darken L. S., Darken L. S., Denton A. R., Entel P., Gray D. E., Hartland G. V., Hase M., Headley T. J., Kadau K., Kalantar D. H., Kohlhaas R., Krasko G. L., Kwon O.-H., LaGrange T., Laio A., Lide D. R., Massalski T. B., Nishiyama Z., Olson G. B., Osetsky Y. N., Porter D. A., Saxena S. K., Shorokhov D., Sinclair C. W., Tateyama S., Teodorescu V. S., Teodorescu V. S., Thomas J. M., Yaakobi B., Zhang J.-m   +40 more
core   +1 more source

Ti6Al4V‐Bioglass‐Copper Composites for Load‐Bearing Implants

Advanced Healthcare Materials, EarlyView.
We have designed and manufactured a novel Ti64‐based composite by adding 45S5 bioglass (BG) and copper (Cu). Adding BG on titanium improves wear resistance and biocompatibility, whereas Cu addition improves mechanical strength while providing inherent lifelong bacterial resistance.
Lochan Upadhayay, Bryson White, Susmita Bose, Amit Bandyopadhyay   +3 more
wiley   +1 more source

The Effect of Thermal Treatment on Microstructure and Thermal-Induced Martensitic Transformations in Ni₄₄Fe₁₉Ga₂₇Co₁₀ Single Crystals

Metals, 2022
Heat treatments of single crystals of Ni44Fe19Ga27Co10 (at.%) shape memory alloys cause various microstructures of the high-temperature phase. The nanodomain structure, consisting of regions of the L21- and B2-phases, and nanosized particles are the main
Ekaterina E. Timofeeva, Elena Yu. Panchenko, Maria V. Zherdeva, Aida B. Tokhmetova, Nikita Yu. Surikov, Yuriy I. Chumlyakov, Ibrahim Karaman   +6 more
doaj   +1 more source

Vacancy-tuned paramagnetic/ferromagnetic martensitic transformation in Mn-poor Mn_{1-x}CoGe alloys

, 2010
It is shown that a temperature window between the Curie temperatures of martensite and austenite phases around the room temperature can be obtained by a vacancy-tuning strategy in Mn-poor Mn1-xCoGe alloys (0
Chen, J. L., Feng, L., Li, Y. X., Liu, E. K., Liu, H. Y., Luo, H. Z., Meng, F. B., Wang, W. H., Wu, G. H., Zhu, W.   +9 more
core   +1 more source

Shape Memory Alloy Nanostructures With Coupled Dynamic Thermo-Mechanical Effects [PDF]

, 2014
Employing the Ginzburg-Landau phase-field theory, a new coupled dynamic thermo-mechanical 3D model has been proposed for modeling the cubic-to-tetragonal martensitic transformations in shape memory alloy (SMA) nanostructures.
Dhote, R., Gomez, H., Melnik, R., Zu, J.
core   +2 more sources

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

Advanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz, Elangovan Hemaprabha, Rajesh Mandal, Pravin Kavle, Jamil Tanus, Maya Barzilay, Ching‐Che Lin, David Spirito, Semën Gorfman, Bo Wang, Ignacio J. Villar‐García, Neus Domingo, Long‐Qing Chen, Lane W. Martin, Yachin Ivry   +14 more
wiley   +1 more source

Electrochemical characterization of 13Cr low-carbon martensitic stainless steel - corrosion study with a mini-cell setup

Journal of Materials Research and Technology, 2022
13Cr low-carbon martensitic stainless steels also known as supermartensitic stainless steels (SMSS) have superior properties than conventional martensitic stainless steels. The SMSS have better weldability and corrosion resistance.
José Wilmar Calderón-Hernández, Mario Fernando González-Ramírez, Jorge Mauricio Sepulveda-Castaño, Juan David Santos-Martines, Janeth Marlene Quispe-Avilés, Rodrigo Magnabosco, Helio Goldenstein   +6 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source