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Meanwhile, some detrimental effects, thermal residual stresses, and heterogeneous microstructure could be associated with the dissimilar metal joints owing to the variations in melting point temperatures, different chemistry, different mechanical strength, and physical properties, such as thermal conductivity, and coefficient of thermal expansion [12].
This phase structure has undergone a significant promotion upon HT.
A typical martensite lath structure is revealed in the FZ.
The welds exhibit a full martensite structure with LCS dilution ≥ 30%.
Interestingly, the predicted weld structure is predominantly martensite, as shown in Fig. 2(d).

Green Chemistry for the Production of Biodegradable Polymers as Solid Substrate and the Formation of Sustainable Biofilm Archana Tiwari1, Alejandro Manzano Ramirez2, Roopesh Jain1, Anushri Saxena1 1School of Biotechnology, Rajiv Gandhi Proudyogiki Vishwavidyalaya, Air port by pass road, Bhopal- 462033 (M.P.)
The structure, physio-chemical properties, monomer composition and the number and size of the granules vary depending on the organism (Anderson and Dawes, 1990; Ha and Cho, 2002).

The overall morphologies and core-shell structures of the nanofibers were examined using SEM and TEM.
The core-shell structure and encapsulation of nanofibers were inspected using TEM photographs.
Internal structure and encapsulation ability of CS/PCL core-shell electrospun nanofibers.
Acknowledgments This research was supported by The Development Program of Basic Science in the Fields of Chemistry, Life Sciences, Earth Sciences, and Marine Sciences, Vietnam Ministry of Science and Technology, under Grant ĐTĐL.CN-111/21.
Ajji, Core-Shell Structured PEO-Chitosan Nanofibers by Coaxial Electrospinning, Biomacromolecules, 13 (2012) 412-421

Portable water-filled road barriers (PWFB) are roadside structures placed on temporary construction zones to separate work site from traffic.
The structure of PWFB consists of two main parts defined as the main body and the joint mechanism.
The weakest sections in most structures are often the joints.
Joints represent a discontinuity in the road safety structure.
In general, a PWFB consists of a hollow rectangular polymeric structure that can be filled with water.

A structure of the composite material is considered.
Conductive properties of each layer have been measured as well as their mechanical properties and structure.
Also, the features of the joints between layers in terms of structure and properties were defined.
The photograph (Fig. 3a) shows the structure of the electrically insulating modified layer.
Technology of sulfur, Chemistry, Moscow, 1985

However, network structure of MgH2 and MgCu2 formed by the hydrogenation of Mg2Cu cannot be seen.
From the experiments of Mg-Cu diffusion couples [13, 14], it is expected that core-shell like structures can be formed during heating process [8, 11].
Constituent phase of the core-shell like structures are Cu, MgCu2, Mg2Cu, and Mg in the order from the core to the shell.
In case I, Mg2Cu is hydrogenated following the reaction of peak 6 and forms a network structure of MgH2 + MgCu2 as fig. 5(a) [11].
Kikuchi, The effect of initial structures of Mg/Cu super-laminates on hydrogen absorption/desorption properties, J.

Currently, the aircraft fuselage is a riveted structure, made mainly of duraluminium alloys such as: D16, 1163 and AA2524.
A negative factor is also the poor weldability of duraluminium alloys, which prevents the manufacture of welded structures.
Replacing riveted fuselage structures with lighter welded ones will result in a weight gain of 20–30 %.
The structure of the alloy was studied using metallographic microscope (Carl Zeiss, Germany).
Images of the Al alloy structure obtained using metallographic microscope.

The structure of the obtained polymer can be represented as follows: where R= м-NO2.
According to laser measurements, the polymer obtained in a doped form had a loose globular structure with various sizes.
It is shown that the polymer synthesized under the found optimal conditions has a globular structure, the size of which is 70-150 microns.
Tager, Physical chemistry of polymers, Scientific world, Moscow, 2007, pp. 76-150
Synthesis methods, polymer structure, Polimer Sci.

Effect of Cooling Rate, Tungsten Fiber Addition and Annealing on Deformation and Mechanical Properties of Zr-Based Bulk Metallic Glasses Under a Nanoindenter SI Yi 1,a * 1Department of Applied Chemistry, Liaoning Petrochemical Vocational and Technology College, China asiyi9555@126.com Keywords: Zr–based bulk metallic glasses; nanoindention; deformation and mechanical properties; cooling rate effect ;annealing effect; tungsten fiber addition effect; plasticity and mechanism Abstract.
The structure of samples detected by X-ray diffraction pattern (XRD) using Cu Kα all consisted of amorphous structure.
There is no grain size or grain boundary in amorphous structure in which the atoms arrange in a random manner and compact packing as possible resulting in the form of compact random packing structure.
The mechanical properties of BGMs depend on the compactedness of the structure to a large extent, which is determined by the components and cooling rate (V) of the samples of BMGs during quenched.
(4) The contactedness of interior atomic-arranging, average freedom volumes and ordered structure of Zr-based BMG are the nature factors affecting their deformation and mechanical properties under a nanoindenter.

The thermal and chemical stability of these bonds are hypothesized to be determined by the nanostructure and molecular structure within the gel phase [1, 5].
As a result, the crystal structures appeared in XRD pattern with high intensity among background of amorphous phases in the ash-based geopolymer material.
Microstructures of the geopolymer-based material (sample of MixGeo6) had changed with appearance of new structure dissolved in background as shown in Figure 4.
The porous structures of alumino-silicate have existed with high concentration.
Davidovits, Geopolymer chemistry and application, 3rd editon, Institute Geopolymer, France, 2011