Results 21 to 30 of about 2,369,387 (292)

Effect of High Pressure Heat Treatment on the Phase Transformation Dynamics of α+γ2→ß in Cu-Al Alloy [PDF]

Materials Research, 2020
In this paper, high pressure heat treatment for Cu-Al alloy is carried out at the pressure of 5GPa and the heating temperature of 700°C for 15 minutes. The phase transformation temperature and time of α+γ2→ß in Cu-Al alloy are measured before and after ...
Dong Cao
doaj   +2 more sources

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
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Research progress of dynamic phase transformation behavior of titanium alloy under thermo-mechanical coupling process

Journal of Aeronautical Materials, 2020
Deformation and phase transformation are two major topics in the study of titanium alloy materials. Titanium alloys usually require a series of complex thermo-mechanical treatments to obtain a microstructure corresponding to service performance.
FAN Jiangkun, LAI Minjie, TANG Bin, KOU Hongchao, LI Jinshan   +4 more
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Isochronal Phase Transformation in Bimodal Ti-55531

Metals, 2019
Bimodal microstructures where globular α and acicular α phases are embedded in the β matrix are commonly used in industry-relevant Ti-55531.
Fuwen Chen, Guanglong Xu, Kechao Zhou, Hui Chang   +3 more
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Microstructure evolution and phase transformation mechanism of Ti–46Al–8Nb–2.5V alloy based on phase transformation geometric models

Journal of Materials Research and Technology, 2023
The microstructure of conventionally solidified and rapidly solidified Ti–46Al–8Nb-2.5V alloys was analyzed with phase transformation geometric models, revealing the phase transformation mechanisms. The β→α→γ phase transformation processes follow Burgers
Shouzhen Cao, Jianchao Han, Hongfeng Wang, Shulong Xiao, Yuyong Chen, Yi Jia   +5 more
doaj   +1 more source

Quadrature-dependent Bogoliubov transformations and multiphoton squeezed states [PDF]

, 2001
We introduce a linear, canonical transformation of the fundamental single--mode field operators $a$ and $a^{\dagger}$ that generalizes the linear Bogoliubov transformation familiar in the construction of the harmonic oscillator squeezed states.
Antonio Di Lisi, Fabrizio Illuminati, G.S. Agarwal, G.S. Prakash, H. Weinfurter, H.P. Yuen, J.-W. Pan, J.A. Bergou, K. Wodkiewicz, M.M. Nieto, M.M. Nieto, P. Marian, P. Marian, P. Nozieres, R.A. Fisher, R.L. de Matos Filho, S. Wallentowitz, Silvio De Siena, V.V. Dodonov, W. Schleich, W. Schleich, Z.Y. Ou   +21 more
core   +2 more sources

Thermal annealing study of swift heavy-ion irradiated zirconia [PDF]

, 2006
Sintered samples of monoclinic zirconia (alpha-ZrO2) have been irradiated at room temperature with 6.0-GeV Pb ions in the electronic slowing down regime.
Andrée Kahn-Harari, Benson S. W., Damask A. C., François Beuneu, François Couvreur, Jean-Marc Costantini, Maier J., Simeone D.   +7 more
core   +4 more sources

High-pressure neutron study of the morphotropic PZT: phase transitions in a two-phase system [PDF]

, 2012
In piezoelectric ceramics the changes in the phase stabilities versus stress and temperature in the vicinity of the phase boundary play a central role. The present study was dedicated to the classical piezoelectric, lead-zirconate-titanate (PZT) ceramic ...
A. M. Asiri, A. Y. Obaid, I. A. Mkhalid, J. Frantti, J. Zhang, Jaffe B., Larson A. C., Newnham R. E., R. M. Nieminen, S. C. Vogel, S. Wang, Y. Fujioka, Y. Zhao   +12 more
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Enhancing resolution with the extended image restoration method: strain field energy and correlation length analysis in Bragg coherent X-ray diffraction imaging

Journal of Synchrotron Radiation
Understanding atomic-level imperfections is crucial in various technological applications. Bragg coherent X-ray diffraction imaging (BCDI) enables non-destructive, three-dimensional imaging of those materials under in situ and operando conditions but has
Kyuseok Yun, Sungwook Choi, Hyunjung Kim
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Effects of Heating Rate and Strain Rate on Phase Transformation in Micro-Grinding [PDF]

EPJ Web of Conferences, 2019
The phase transformation in the grinding process could have a significant impact on the processing performance of the products. Although grinding process can lead to high heating and strain rates, the current studies on the phase transformation typically
Sun Gaoxiang, Ding Zishan
doaj   +1 more source