iron based shape memory alloys mechanical and structural properties

... and T Kanomata Chapter Iron Based Shape Memory Alloys: Mechanical and Structural Properties 115 Fabiana Cristina Nascimento Borges Section Mechanical Behavior 129 Chapter Mechanics of Shape Memory ... Li, Qingbin Li and Fan Zhang Chapter 10 NiTi Shape Memory Alloys, Promising Materials in Orthopedic Applications 261 Marjan Bahraminasab and Barkawi Bin Sahari Preface Shape memory alloys have ... the link between micro and macromechanical behavior and its relation with the structural details Iron based SMA are becoming very attractive engineering materials and their structural characterization...

Ngày tải lên: 30/03/2014, 23:20

... shape- memory alloys Shape- memory alloys (SMAs), a relatively new type of metallic alloys, have fascinating material characteristics and a promising future They are usually called shape- memory alloys ... vii List of Figures 1.1 (a) Shape- memory based actuation device (Grant, D and Hayward, V., 1995) (b) NiTi shape memory alloy thin film based microgripper (Huang, W.M and Tan, J.P., 2002) (c) ChromoFlextm ... (a) (b) (c) Figure 1.1: (a) Shape- memory based actuation device (Grant, D and Hayward, V., 1995) (b) NiTi shape memory alloy thin film based micro-gripper (Huang, W.M and Tan, J.P., 2002) (c) ChromoFlextm...

Ngày tải lên: 12/09/2015, 08:19

... for shape memory alloy wires Materials Science and Engineering A, v 524, n 1–2, p 108–111 40 Shape Memory Alloys Bending Deformation and Fatigue Properties of Precision-Casting TiNi Shape Memory ... the shape memory behaviour • It explains and characterizes the temperature memory effect in TiNi and CU -based alloys including wires, slabs and films by electronic resistance, elongation and ... Simulation of Shape- memory Behavior 1 Molecular Dynamics Simulation of Shape- memory Behavior Takuya Uehara Yamagata Univ Japan Introduction Mechanical properties of shape- memory alloys (SMAs)...

Ngày tải lên: 29/06/2014, 14:20

... chuyển đổi lực học thành điện ngược lại.(Piezo-electric materials) • Shape memory: trở hình dạng ban đầu sau bị biến dạng (Shape memory) • Thermochromic: thay đổi màu sắc đáp ứng với thay đổi nhiệt ... Shape memory alloy (SMA) Lịch Sử hình thành • Lịch sử SMA năm 1961 William J Buehler, nhà nghiên cứu...

Ngày tải lên: 08/08/2015, 22:33

... their kindness and for providing a wonderful and friendly environment A very special word of thanks goes to my parents Soundarapandian and Poonkodi and my sister Viji, for their support and encouragement ... loading and unloading cycle Hysteresis is observed during the pseudoelastic cycle 2.6.2.2 Shape memory effect We now study the detwinning and shape memory effect in the chain by loading and unloading ... crystallographic structural changes in a material due to applied mechanical and/ or thermal loads These phase transitions result in rich microstructure and concomitant change in the mechanical response Structural...

Ngày tải lên: 14/09/2015, 14:08

... axis on the mechanical and piezoelectric properties of short-period BTO/PTO superlattice We show the mechanical properties by calculating the ideal tensile strength, elastic constants and valence ... axis and then conduct structural optimization for the lattice vectors perpendicular to the c axis, and all the internal atomic positions until the two components of stress tensor (i.e., r11 and ... on the properties of BTO and PTO, respectively [12–15] Results and Discussion Figure 2a shows the uniaxial tensile stress r33 as a function of strain g3 The relation between strains g1 and g3...

Ngày tải lên: 22/06/2014, 00:20

... SBR matrix and SBS gels were mixed with NR at a given concentration, to investigate their effect on the morphology, mechanical, dynamic mechanical and thermal properties of raw SBR and NR Morphology ... NS3 and SBS3 gels have been shown as representative systems The particle diameters in Fig Particle size distribution by DLS method for a SBR and SBS gels and b NR and NS gels Table Various properties ... Designations Control natural rubber latex and styrene butadiene rubber latex were designated as NR and SBR, respectively Individual NR and SBR gels were expressed as NSa and SBSa, respectively, where ‘a’...

Ngày tải lên: 22/06/2014, 01:20

... volume and, mineral admixtures Mechanical Properties Deformational Properties Air-void system and their effect on mechanical properties (experimental and numerical study) Autogenous shrinkage and ... understand the mechanical and deformational properties are important Therefore, this study was undertaken to comprehensively understand the mechanical and deformation properties, and shrinkage ... are capable of withstanding both the mechanical and environmental loadings Accurate testing and evaluation procedures must also be developed, based on a fundamental understanding of the material...

Ngày tải lên: 11/09/2015, 09:07

... mechanical properties of solder joints is presented following this 10 1.2 Solder alloys and solder joints 1.2.1 Solder alloys and rate-dependent mechanical properties (1) Types of solder alloys and ... BACKGROUND AND LITERATURE REVIEW 1.1 Advanced IC packages and issues of reliability 1.2 Solder alloys and solder joints 11 1.2.1 Solder alloys and rate-dependent mechanical properties ... isotropic material properties) 239 Fig.5-16 Comparison of load and strain FEM results based on orthotropic and isotropic material properties (3D solid model, 1mm mesh size and element layers...

Ngày tải lên: 11/09/2015, 09:58

... the cell edges (struts) and walls (membranes), cell structure and properties of fluid inside the cells • Mechanical properties of the solid material – The mechanical properties of solid foams, ... proposed and analysed both analytically and numerically to find generic relationships between the overall mechanical properties of solid foam and its microstructural characteristics, such as cell shape ... this study focuses on the tensile mechanical properties of rigid polyurethane foam and establishment of an appropriate cell model The mechanical and structural properties of rigid polyurethane...

Ngày tải lên: 14/09/2015, 12:24

... fraction (%) (thousands) 2S 15.0 18-33 7S 34.0 11S 15S pI The 11S and 7S fraction contents have been found to vary with soybean variety and environment (Cai and Chang, 1999) Cai and Chang (1999) ... developed understanding of the various interaction processes, physicochemical and structural/ functional properties of the soy protein fractions (2S, 7S and 11S) The protein-protein and the protein-coagulant ... protein to improve the nutritional and functional properties of the major protein fraction was mapped out Finally, the functional and structural properties of the 11S and 7S were contrasted with those...

Ngày tải lên: 16/09/2015, 08:30

... chains A and B of vaspin (DDBJ/EMBL/GenBank accession no.s AJ459806 and AJ459807, respectively) [13], chains A and B of vipoxin (Gi numbers: 16974941 and 16974940) from V am meridionalis [16] and ... (vp0016B10VAZ and vp0016C06VAZ, DDBJ/EMBL/GenBank accession no.s AY243574 and AY243577, respectively) and V a aspis (vp0015F11VAN and vp0015C10VAN, DDBJ/EMBL/GenBank accesion no.s AY243575 and AY243576, ... deletions and insertions (Fig 1) Two microsatellite regions of tandem CA and TCCC repeats were particularly prone to insertion and deletion (Fig 1), as reported in previous studies on T flavoviridis and...

Ngày tải lên: 17/03/2014, 03:20

... L Diamandescu et al / Materials Chemistry and Physics 112 (2008) 146–153 Experimental Results and discussion 2.1 Hydrothermal synthesis 147 3.1 X-ray diffraction Fe3+ - and Eu3+ -doped and -codoped ... EXAFS (a) and corresponding Fourier transforms (b) for the sample TFE and cubic Eu2 O3 Ti K-edge EXAFS of anatase and its FT are also shown L Diamandescu et al / Materials Chemistry and Physics ... monochromator and a pre-focusing Au mirror EXAFS spectra have been measured in transmission mode, at Fe K- and Eu L2 -edges for the doped photocatalysts, ␣-Fe2 O3 and Eu2 O3 standards The TiO2...

Ngày tải lên: 20/03/2014, 13:08

... nd, and was superior to the at model for Query 4, 5, and However, our model was inferior to the at model for Query 14 and 15 Comparing our models, the number of relevant results using sc and ... of a query and the size of documents (Clarke et al., 1995) A Ranking Model for Structured Queries and Texts This section describes the denition of the relevance between a document and a structured ... C(A op B) C(A) + C(B) and when the operator op is Ê or Ă, the structure coefcient of the query A op B is: scAopB = C(A) C(A op B) C(A) where A and B are the queries and C(A) is the number of...

Ngày tải lên: 31/03/2014, 03:20

... WTC and WTC under design, service, and abnormal loads, and aircraft impact damage on the structural, fire protection, and egress systems Determine and analyze the mechanical and metallurgical properties ... systems, and determine the most probable structural collapse sequence for WTC 1, 2, and Analyze the behavior and fate of occupants and responders, both those who survived and those who did not, and ... structural steel available from WTC 1, 2, and to determine the metallurgical and mechanical properties and quality of the metal, weldments, and connections, and provide these data to other parts...

Ngày tải lên: 01/04/2014, 00:20

... A Samal, and D Marx, “How effective are landmarks and their geometry for face recognition?” Computer Vision and Image Understanding, vol 102, no 2, pp 117–133, 2006 [18] C Kim, J Y Oh, and C.-H ... framework for combining statistical and structural information of patterns for database retrieval is proposed The framework is based on combining statistical and structural aspects of feature distributions ... recognition,” Image and Vision Computing, vol 23, no 5, pp 469–477, 2005 [6] D Ramasubramanian and Y V Venkatesh, “Encoding and recognition of faces based on the human visual model and DCT,” Pattern...

Ngày tải lên: 21/06/2014, 22:20

... the sequence properties On the other hand recent machine learning method, BayesmiRNAfind uses detailed structural and thermodynamics features with sequence elements for prediction and employs ... were created and evaluated by random sampling Models were analysed for sensitivity and specificity, where: Sensitivity = 100 * True positives /( True positives + False Negatives) and Specificity ... hairpins) and the negative set (pseudo microRNA hairpins) to derive the frequently occurring and infrequently occurring sets of features 20 most frequent and infrequent features are plotted in Fig and...

Ngày tải lên: 12/08/2014, 04:20

... tables and graphics in these pages summarize all known modifications from different experiments, along with relevant literature and information about the number and type of sequence and structural ... source The database is publicly available online, and experimentalists are encouraged to submit their data for storage and display Results Handling and storage of phosphosite data The mtcPTM database ... structures (see Materials and methods, below) The NR set comprised 324 structural models, representing a wide range of Pfam domains, and contained 264 modified serine/threonine and 219 tyrosine residues...

Ngày tải lên: 14/08/2014, 07:21

... scaffold -based bone TE an ideal scaffold should be mechanically stable; that is the mechanical properties of the scaffold must be sufficient to withstand in vivo stress and loading [13] and the ... composite by fabricating extrusion -based AM scaffolds in terms of mechanical properties and biocompatibility Improve the proliferative and osteoconductive properties of the developed scaffolds ... stable; that is the mechanical properties of the scaffold must be sufficient to withstand in vivo stress and loading [13] and the choice of material should have a degradation and resorption rate...

Ngày tải lên: 10/09/2015, 15:51

... the thermal, mechanical and shape- memory properties of SMPs is examined The characterization of polymers structure, thermal, and mechanical properties, and the investigation of shapememory behavior ... influenced the thermal, mechanical and shape- memory properties of the networks Tm and mechanical properties of the network increased with Mn of PCL precursor The best shape- memory properties were shown ... at a higher temperature.6 Such shape- memory effect was observed in many alloys, such as Ni-Ti, Cu-Zn-Al, Cu-Al-Ni and iron- based alloys etc.5, 7, Shape- memory alloys (SMAs) have advantages of...

Ngày tải lên: 11/09/2015, 09:58