Searched for: subject:"synchrotron"
(1 - 13 of 13)
document
You, X. (author)
The magnetocaloric effect (MCE) is a magneto-thermodynamic phenomenon in which a temperature change of a material is caused by exposing the material to a changing magnetic field under adiabatic conditions. There are two main applications based on the MCE. One application is magnetic refrigeration, which can expel heat in a magnetic field cycle....
doctoral thesis 2020
document
Fang, H. (author)
Solid-state phase transformations in steels cover a broad range of aspects. The underlying physics behind these phase transformations usually include nucleation, diffusion, lattice reconstruction and interactions between solutes and grain boundaries and interfaces. These features and the fact that the events take place at high temperatures, in...
doctoral thesis 2019
document
Fang, H. (author), Szymanski, N. (author), Versteylen, C. D. (author), Cloetens, P. (author), Kwakernaak, C. (author), Sloof, W.G. (author), Tichelaar, F.D. (author), Balachandran, S. (author), Herbig, M. (author), Brück, E.H. (author), van der Zwaag, S. (author), van Dijk, N.H. (author)
When metals are mechanically loaded at elevated temperatures for extended periods of time, creep damage will occur in the form of cavities at grain boundaries. In the present experiments it is demonstrated that in binary iron-tungsten alloys creep damage can be self healed by selective precipitation of a W-rich phase inside these cavities. Using...
journal article 2019
document
Hidalgo Garcia, J. (author), Huizenga, R.M. (author), Findley, K.O. (author), Santofimia, Maria Jesus (author)
By means of high-energy synchrotron X-ray diffraction, the interplay between martensite and retained austenite phases in steel during the application of stress has been analyzed. Martensite properties were varied through controlled reheating heat treatments in a low carbon Quenched and Partitioned (Q&P) steel consisting of retained...
journal article 2019
document
Zhang, X. (author)
Chemical energy storage in Li-ion batteries is a key technology for the future renewable society. Their energy and power density is largely determined by electrode materials that are able to host lithium in their crystal structure. Aiming at faster and more efficient energy storage, one of the key objectives in Li-ion batteries is to improve the...
doctoral thesis 2015
document
Gao, H. (author)
Allseas Engineering bv is an engineering center of the Allseas group, a major player in the offshore pipe lay market and recently expanding the activities to the offshore heavy lift sector. Because of the necessity to design and build lifting structures and equipment of a tremendously high capacity, the demand for high-strength steels usage has...
doctoral thesis 2014
document
Blondé, R.J.P. (author), Jimenez-Melero, E. (author), Huizenga, R.M. (author), Zhao, L. (author), Wright, J. (author), Brück, E.H. (author), Van der Zwaag, S. (author), Van Dijk, N.H. (author)
The martensitic transformation behaviour of the metastable austenite phase in low-alloyed transformation-induced plasticity (TRIP) steels has been studied in situ using high-energy X-ray diffraction during deformation. The austenite stability during tensile deformation has been evaluated at different length scales. A powder diffraction analysis...
journal article 2014
document
Blondé, R.J.P. (author), Jimenez-Melero, E. (author), Anusuya Ponnusami, S. (author), Zhao, L. (author), Schell, N. (author), Brück, E.H. (author), Van der Zwaag, S. (author), Van Dijk, N.H. (author)
While earlier studies on transformation-induced-plasticity (TRIP) steels focused on the determination of the austenite-to-martensite decomposition in uniform deformation or thermal fields, the current research focuses on the determination of the local retained austenite-to-martensite transformation behaviour in an inhomogeneous yet carefully...
journal article 2014
document
Blondé, R. (author)
TRIP steel is a material providing great mechanical properties. Such steels show a good balance between high-strength and ductility, not only as a result of the fine microstructure, but also because of the well-known TRIP effect. The Transformation Induced-Plasticity (TRIP) phenomenon is the transformation of the soft metastable austenite phase...
doctoral thesis 2014
document
Sharma, H. (author)
The research described in this thesis encompasses fields of 3DXRD, phase transformations and grain coarsening in iron alloys.
doctoral thesis 2012
document
Mookhoek, S.D. (author), Fischer, H.R. (author), Van der Zwaag, S. (author), Ludwig, W. (author)
conference paper 2011
document
Savran, V.I. (author)
The production process of almost all modern steels involves austenitization formation of the austenite phase upon continuous heating. Many of the microstructural features and properties that are obtained upon subsequent cooling are to a large extend determined by the evolution of the microstructure and chemical inhomogeneities during...
doctoral thesis 2009
document
Van der Aa, E.M. (author)
One of the major problems during welding of thin plate structures is the occurrence of buckling distortion. This type of distortion is caused by the formation of compressive welding stresses; when these stresses exceed a certain critical stress level, the structure will buckle. Most methods for eliminating the welding induced buckling distortion...
doctoral thesis 2007
Searched for: subject:"synchrotron"
(1 - 13 of 13)