Results 61 to 70 of about 26,088 (258)

Phase diagram of Fe-doped Ni-Mn-Ga ferromagnetic shape-memory alloys [PDF]

, 2008
We have studied the effect of Fe addition on the structural and magnetic transitions in the magnetic shape memory alloy Ni-Mn-Ga by substituting systematically each atomic species by Fe.
Antoni Planes, Daniel Soto, Francisco Alvarado Hernández, Horacio Flores-Zúñiga, Lluís Mañosa, M. Ohtsuka, Mehmet Acet, O. Söderberg, Seda Aksoy, Thorsten Krenke, Xavier Moya   +10 more
core   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Phase diagram of FeNiCoAlTaB ferrous shape memory alloy on aging time

AIP Advances, 2017
Ferrous shape memory alloy, Fe41Ni28Co17Al11.5Ta2.5B0.05, has shown large superelastic strain and strength in previous study. In the fabrication of this alloy, aging process is crucial for the formation of shape memory effect/superelasticity.
Zhijian Zhou, Jian Cui, Xiaobing Ren
doaj   +1 more source

Microstructure Formation of Low-Carbon Ferritic Stainless Steel during High Temperature Plastic Deformation

Metals, 2019
In this paper, the effects of the deformation temperature, the deformation reduction and the deformation rate on the microstructural formation, ferritic and martensitic phase transformation, stress–strain behaviors and micro-hardness in low-carbon ...
Yi Shao, Xiaohua Li, Junjie Ma, Chenxi Liu, Zesheng Yan   +4 more
doaj   +1 more source

Lavrentiev Phenomenon in Microstructure Theory [PDF]

, 1996
A variational problem arising as a model in martensitic phase transformation including surface energy is studied. It explains the complex, multi-dimensional pattern of twin branching which is often observed in a martensitic phase near the austenite ...
Winter, M
core   +2 more sources

Magnetostructural Transformation and Magnetoresponsive Properties of MnNiGe1-xSnx Alloys

, 2011
The martensitic and magnetic phase transformations in MnNiGe1-xSnx (0 \leq x \leq 0.200) alloys were investigated using X-ray diffraction (XRD), differential thermal analysis (DTA) and magnetization measurements.
Chen, Jinglan, Du, Yin, Liu, Enke, Wang, Wenhong, Wu, Guangheng, Zhang, Hongwei   +5 more
core   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Influence of intermartensitic transitions on transport properties of Ni2.16Mn0.84Ga alloy

, 2004
Magnetic, transport, and x-ray diffraction measurements of ferromagnetic shape memory alloy Ni$_{2.16}$Mn$_{0.84}$Ga revealed that this alloy undergoes an intermartensitic transition upon cooling, whereas no such a transition is observed upon subsequent ...
Andrianov A, Brown P J, C Wedel, Chernenko V A, Chernenko V A, Fawcett E, Gonzàlez-Comas A, Inoue K, K Oikawa, K Sugiyama, Khovailo V V, Kokorin V V, Kokorin V V, Lu X, Martynov V V, Murayama S, Otsuka K, T Abe, T Takagi, Takagi T, V V Khovailo, Vasil?ev A N, Vasil?ev A N, Webster P J, Wedel C, Zhao G-L, Zheludev A, Zuo F   +27 more
core   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Anomalous phonon behavior in the high temperature shape memory alloy: TiPd:Cr [PDF]

, 2007
Ti50 Pd50-xCrx is a high temperature shape memory alloy with a martensitic transformation temperature strongly dependent on the Cr composition. Prior to the transformation a premartensitic phase is present with an incommensurate modulated cubic lattice ...
A. J. Schwartz, B. L. Winn, D. L. Schlagel, D. Schryvers, Guangyong Xu, H. Hosoda, K. Enami, K. Otsuka, N. M. Mateeva, R. Erwin, S. M. Shapiro, T. Lograsso, W. Cochran, Z. Fisk   +13 more
core   +4 more sources