Results 11 to 20 of about 27,569 (205)

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

FE calculations on a three stage metal forming process of Sandvik Nanoflex [PDF]

, 2004
Sandvik NanoflexTM combines good corrosion resistance with high strength. This steel has good deformability in\ud austenitic conditions. It belongs to the group of metastable austenites, which means that during deformation a strain-induced\ud ...
Huetink, J., Post, J., Sluis, O. van der, Voncken, R.M.J.   +3 more
core   +3 more sources

Modulated structure in the martensite phase of Ni1.8Pt0.2MnGa: a neutron diffraction study

, 2012
7M orthorhombic modulated structure in the martensite phase of Ni1.8Pt0.2MnGa is reported by powder neutron diffraction study, which indicates that it is likely to exhibit magnetic field induced strain. The change in the unit cell volume is less than 0.5%
Awasthi, A. M., Barman, S. R., Bhardwaj, S., Rajput, P., Singh, Sanjay, Suard, E., Ziebeck, K. R. A.   +6 more
core   +1 more source

Crystal symmetry and the reversibility of martensitic transformations [PDF]

Nature, 2004
Martensitic transformations are diffusionless, solid-to-solid phase transitions, and have been observed in metals, alloys, ceramics and proteins. They are characterized by a rapid change of crystal structure, accompanied by the development of a rich microstructure.
BHATTACHARYA K., CONTI S., ZANZOTTO, GIOVANNI, ZIMMER J.   +3 more
openaire   +4 more sources

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

Simulating the Effects of Substrate Pre-Heating on the Final Structure of Steel Parts Built by Laser Powder Deposition [PDF]

, 2004
Tool steel parts built by laser powder deposition often present a heterogeneous distribution of properties caused by the complex structural transformations that occur during the deposition process.
Costa, L., Réti, T., Vilar, R.
core   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, Volume 28, Issue 11, 3 June 2026.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

NiTi shape-memory transformations: minimum-energy pathways between austenite, martensites, and kinetically-limited intermediate states [PDF]

, 2014
NiTi is the most used shape-memory alloy, nonetheless, a lack of understanding remains regarding the associated structures and transitions, including their barriers.
Johnson, Duane, Johnson, Duane, Zarkevich, Nikolai, Zarkevich, Nikolai   +3 more
core   +4 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Effect of lattice mismatch-induced strains on coupled diffusive and displacive phase transformations

, 2006
Materials which can undergo slow diffusive transformations as well as fast displacive transformations are studied using the phase-field method. The model captures the essential features of the time-temperature-transformation (TTT) diagrams, continuous ...
J. D. Gunton, J. Pons, J. W. Christian, K. Bhattacharya, L. D. Landau, Mathieu Bouville, Rajeev Ahluwalia   +6 more
core   +1 more source