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Phase diagram of NiTi, with a highlighted composition interval delimited by...
Published Online: September 12, 2022
Fig. 1 Phase diagram of NiTi, with a highlighted composition interval delimited by the red isopleths, where most of the NiTi alloys under study lie. Taken from Ref. [ 10 ] and modified. Reprinted with permission from Zhang et al. [ 10 ]. Copyright 2013 by Elsevier. More
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Diagram showing the major deformation mechanisms for SMAs, in terms of stre...
Published Online: September 12, 2022
Fig. 2 Diagram showing the major deformation mechanisms for SMAs, in terms of stress, strain, and temperature. Images were taken and modified from Ref. [ 13 ], top, and Ref. [ 14 ], bottom. The top image corresponds to an open access article, whereas the bottom image corresponds to the referenced ... More
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Remnant martensite variants, along different directions, on a FeNiCoAlTi Fe...
Published Online: September 12, 2022
Fig. 3 Remnant martensite variants, along different directions, on a FeNiCoAlTi Fe-based SMA specimen. SEM micrograph was taken from Ref. [ 19 ]. Reprinted with permission from Abuzaid and Sehitoglu [ 19 ]. Copyright 2018 by Elsevier. More
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SLM NiTi specimens. Examples of unit cell topology configurations. Isolated...
Published Online: September 12, 2022
Fig. 4 SLM NiTi specimens. Examples of unit cell topology configurations. Isolated unit cells are shown at the top. ( a ) octahedron, ( b ) TPMS cellular gyroid, and ( c ) TPMS sheet gyroid. Taken from Ref. [ 27 ]. Reprinted with permission from Speirs et al. [ 27 ]. Copyright 2017 by Elsevier. More
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AM NiTi tubes, with peripheral defects visible with an optical microscope. ...
Published Online: September 12, 2022
Fig. 5 AM NiTi tubes, with peripheral defects visible with an optical microscope. Taken from Ref. [ 35 ]. Reprinted with permission from Safaei et al. [ 35 ]. Copyright 2021 by Elsevier. More
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Schematic representation of the SLM process. Taken from Ref. [ 10 ]. Reprin...
Published Online: September 12, 2022
Fig. 6 Schematic representation of the SLM process. Taken from Ref. [ 10 ]. Reprinted with permission from Zhang et al. [ 10 ]. Copyright 2013 by Elsevier. More
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Critical stress trends for the martensitic transformation. Top, as reported...
Published Online: September 12, 2022
Fig. 7 Critical stress trends for the martensitic transformation. Top, as reported in Ref. [ 46 ], apparent linear trend with the scanning speed, for AM NiTi. Reprinted with permission from Yang et al. [ 46 ]. Copyright 2019 by Elsevier. Bottom, as reported in ref. [ 49 ], according to the solid l... More
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( a ) Subsurface defect in a poorly melted region of an AM NiTi specimen. (...
Published Online: September 12, 2022
Fig. 8 ( a ) Subsurface defect in a poorly melted region of an AM NiTi specimen. ( b ) Surface void, in an AM NiTi specimen. Taken from Ref. [ 52 ]. Reprinted with permission from Bagheri et al. [ 52 ]. Copyright by Elsevier. More
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Dependence of the enthalpy of transformation between martensite and austeni...
Published Online: September 12, 2022
Fig. 9 Dependence of the enthalpy of transformation between martensite and austenite with the scanning velocity, corresponding to AM NiTi. Taken from Ref. [ 10 ]. Reprinted with permission from Zhang et al. [ 10 ]. Copyright 2013 by Elsevier. More
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Crack propagation curves for two NiTi alloys, top, and bottom, respectively...
Published Online: September 12, 2022
Fig. 10 Crack propagation curves for two NiTi alloys, top, and bottom, respectively. They have been obtained from three different approaches, namely, a correlation/DIC regression model, an analytical model, and ASTM E647. Taken from Ref. [ 83 ]. The images correspond to an open access article. More
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EBSD image of a tensile sample made of FeMnAlNi SMA. ( a ) Shows the distin...
Published Online: September 12, 2022
Fig. 11 EBSD image of a tensile sample made of FeMnAlNi SMA. ( a ) Shows the distinct grains, together with the crystallographic orientation mapping. ( b ) Shows the 〈 001 〉 inverse pole figure of the grains. Taken from Ref. [ 106 ] and modified. This image corresponds to an open access ... More
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EBSD image of a wire sample made of FeNiCoAlTaB SMA. Left: phase map of the...
Published Online: September 12, 2022
Fig. 12 EBSD image of a wire sample made of FeNiCoAlTaB SMA. Left: phase map of the sample, showing one single phase, and distribution of the crystallographic orientations. Right, orientation mapping and inverse pole figure of thegrains. Taken from Ref. [ 110 ] and modified. Reprinted withpermissi... More
Journal Articles
Journal Articles
Journal Articles
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Hierarchical organization of bone (see images and cartoons, respectively), ...
Published Online: August 16, 2022
Fig. 1 Hierarchical organization of bone (see images and cartoons, respectively), and the corresponding micromechanical representation (elliptic cross sections through the three-dimensional RVEs), with indication of the respective characteristic lengths; the micromechanical representation follows ... More
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Concept of matrix-inhomogeneity-problem-based homogenization (also called “...
Published Online: August 16, 2022
Fig. 2 Concept of matrix-inhomogeneity-problem-based homogenization (also called “mean-field-homogenization” or “homogenization of media with random microstructures”): several such problems are subjected to the same fictitious far-field strains, and then “superimposed” into an RVE, by means of the... More
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Stiffness homogenization over an RVE, based on the constitutive and concent...
Published Online: August 16, 2022
Fig. 3 Stiffness homogenization over an RVE, based on the constitutive and concentration relations of Fig. 2 ; with application to the six RVEs depicted in Fig. 1 ; explicit expressions for the matrix inclusion problem-related concentration tensors can be found in Refs. [ 35 , 47 ] More