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NiTi superelasticity and performances relies on precise control of the phase transformation temperatures (TTs), which are sensibly affected by several factors, such as chemical composition, precipitation of secondary phases, heat treatments or defects [1, 2].
This change after heat treatments can be attributed to several factors.
Additionally, metallurgical recovery and recrystallization may take place, leading to defect rearrangement and a decrease in defect density, affecting thermal properties [6, 15].
Ren, Factors affecting the Ms temperature and its control in shape-memory alloys, Mater.
Pelton, The effects of cold work and heat treatment on the properties of Nitinol wire, in: Proc.

An attempt is made to model the mechanical properties through response surface methodology (RSM).
A study on mechanical properties of chicken feather composites [1] was carried by Jeffrey W.Kock.
Hence, RSM model can be used for prediction of mechanical properties of emu feather fiber epoxy composite material.
The figures 7 to 10 shows comparison between experimental values and RSM predicted values of mechanical properties.
Kock, Physical and mechanical properties of chicken feather materials

Dynamical mechanical analysis indicates that the loss factor of composite was impaired by the incorporation of acid treated MWCNT.
Polymer/CNT composites possess excellent mechanical properties, thermal stability and electrical conductivity.
The enhancement of these properties mainly derives from the nanometer scale and high aspect ratio of CNT [1].
Damping properties were carried out on a Pyris 7e dynamic mechanical analyzer (PerkinElmer, USA) over a temperature range of 20-160°C at a heating of 5°C / min at 1HZ.
Dynamic mechanical analysis reveals the incorporation of acid treated MWCNT reduced the damping properties of composite.

The results show that 22MnB5 has good mechanical properties, but the toughness decreases obviously under certain thermal cycles, showing cold crack sensitivity of 22MnB5.
Introduction With the continuous development of auto industry, manufacturers all over the world pay more attentions to environmental protection, energy saving, emission reduction of fuel and auto safety factors.
The hot forming technology is one of the most successful in producing complex components with superior mechanical properties.
Experimental Procedure Weld heat affected zone (HAZ) is the weakest zone of the whole welding joints, and the most important influencing factors are Tp and t8/5 of the thermal cycle.
Influence of peak temperature and cooling rates on mechanical properties Fig.4 shows hardness distribution of samples at different TP and t8/5.

(a) (b) (c) (d) Interconnected Closed pore Open pore Fig. 2 SEM micrograph for sintered silica foam with 55 wt% of silica at temperature (a) 1100 °C, (b) 1200 °C, (c) 1300 °C and (d) 1400 °C Porosity is the dominant factor affecting the performance of ceramic materials such as thermal and mechanical properties [11].
It was observed that the properties of silica foam are greatly influenced by the porosity.
Schweigstillova, Preparation of finely macroporous SiOC foams with high mechanical properties and with hierarchical porosity via pyrolysis of a siloxane/epoxide composite, J.
Fukushima, Macro-porous ceramics: processing and properties, Int.
Yacob, Effect of thermal treatment on properties and microstructure of porous alumina, Sol.

Overview of the investigations Samples were taken out from the leaking pipeline system, and following characteristics were determined: · long term corrosion potential, corrosion rate, electrochemical impedance, pitting potential (provoked by chloride ions and ferric chloride), · bulk and local chemical composition (EDX, LA-ICP-MS), deposit composition, · mechanical properties, · microstructures (OM, SEM, EBSD), · microbiological effect (fluorescence microscopy).
Results of the chemical composition and mechanical properties determination The chemical composition values, the mechanical properties determined by tensile tests, the features of non-metallic inclusions (content and composition), the phases simulated by JMatPro as well as by Calphad with special regard to δ-ferrite content were all in compliance with the standard values.
Results of the microstructure investigations The microstructure investigations were focused on the influencing factors of pitting corrosion on austenitic stainless steels.
The complexity of the problem is demonstrated by the fact that some welds with heat tint did not show damage which suggests that not only the presence of an oxide layer, but other most likely operating factors (stagnation of medium) are necessary for initiating corrosion.
Description of the precise degradation mechanism requires knowledge and consideration of all influencing factors and their relationship.

Mechanical Properties of AS21 Magnesium alloy Based Composites Zuzanka Trojanová 1,a, Zoltán Száraz1,b 1 Department of Metal Physics, Charles University, Prague, Ke Karlovu 5, CZ-121 126 Praha 2, Czech Republic a ZTROJAN@MET.MFF.CUNI.CZ, bSZARAZ@KARLOV.MFF.CUNI.CZ Keywords: Magnesium alloys, Composites, Mechanical properties, Hardening, Softening Abstract.
Introduction The mechanical properties of Mg based composites have been the object of detailed studies during recent years.
Considerable improvement of the mechanical properties can also be achieved by the reinforcement with ceramic fibres.
Investigation of their mechanical and physical properties is important not only for applications but also for better understanding of the processes responsible for their behaviour.
Composites are really inhomogeneous in both elastic as well as plastic properties.

Clay as pottery’s raw material is a major factor that is affecting the quality and reliability of any pottery product.
The clay source areas need to be well determined their geochemical properties in order to control the end properties of clay product.
The new location must be studied and compared their clay properties with establish location in order to understand the end product properties [10].
However, Ahmed et al. [14] stated that both compound were undesired compound that should be removed to improve the mechanical properties and improvised by proper grading of clay particles.
Jalloh, Effect of grain size on selected physico-chemical properties of clay, Am.

Its mechanical properties under different heat treatment conditions were determined by tensile tests.
Composition analyses for the original sheet and T4 samples Mechanical properties of the alloy after heat treatment.
(3) The main factors affecting the alloy performance is the re-dissolution rate of the deformation precipitation and the matrix grain size of heat treatment.
Effect of Gd content on microstructure and mechanical properties of Mg-Y-RE-Zr alloys[J].
[7] WANG J, MENG J, ZHANG D P, TANG D X, Effect of Y for enhanced age hardening response and mechanical properties of Mg-Gd-Y-Zr alloys[J].

Artificial cementation is a technique commonly used to improve the mechanical properties of soils for use in geotechnical engineering works, because it often provides economic and environmental advantages.
Cementation between soil particles is known to improve its mechanical properties, notably its compressive and tensile strengths.
Understanding the mechanical behavior of cemented soils is of major importance for geotechnical engineering, since the properties of this material directly affects the performance of current engineering projects.
Conclusions A poorly graded sand from Natal dunes has been artificially cemented with high early strength Portland cement in order to assess the mechanical properties of this material.
V. da. (2009) Strength Properties of Sandy Soil-Cement Admixtures.