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Firstly the changes in microstructure that will affect the mechanical properties of the nano-scale ceramic materials are investigated as the nano-ceramic tools are compared with the monolithic ceramic tools.
Secondly the effect of microstructure on the mechanical properties is discussed.
Introduction It is well known that ceramic materials exhibit outstanding mechanical and thermodynamic properties and these properties are highly relevant to the microstructure.
It is necessary to design and improve the microstructure of composite according to the requirements in mechanical properties.
Effect of Microstructure on Mechanical Properties of Nanocomposite Compared with the monoclinic ceramic material, the mechanical properties of nano-composite have been improved remarkably due to a change in microstructure, which also induces a new toughening and strengthening mechanism of intragranular structure.

Also, the loss in mechanical properties as compared to the base material is very significant.
These factors make the joining of these alloys by conventional welding processes unattractive.
Both of these factors influence the temperature increase within and around the stirred zone.
Serindag: ꞌMechanical properties of frition stir butt-welded Al5086-H32 plate”, J.
Zibary: ꞌMetallurgical and mechanical properties of some friction welded aluminum alloysꞌ, Ph.D.

Orthogonal test finds that the pecking order of the influencing factors to physical properties is: fiber content > fiber length > hydroxyapatite content.
ω (f (PLA))=1% Fig. 3 SEM images of f (PLA)–HA/CS composites in the fracture surface Mechanical Properties Analysis.
As a result, neither the fiber is much too long nor short is favorable to the mechanical properties enhancement.
Fig. 6 Effect of fiber length on physical Properties of the f (PLA)-HA/CS composites Fig. 5 Effect of fiber content on physical properties of the f (PLA)-HA/CS composites Fig. 4 Effect of HA content on physical properties of the f (PLA)-HA/CS composites Influence Factor Analysis.
The pecking order of influence factors to the compositive physical properties summarized from the orthogonal experimental is: fiber quality > fiber length > hydroxyapatite quality.

Zhang Xiaogang et al studied the influence of process parameters on the dimensional accuracy of SLM pure copper powder forming parts; Jiang Xianfeng et al. used 316L stainless steel powder for SLM forming, and studied the influence of different forming angles on the mechanical properties of the parts; Lu Jianbin et al. analyzed the factors affecting the quality of SLM forming overhanging surface.
[7] Noriko Read,Wei Wang,Khamis Essa,et al．Selective laser melting of AlSi10Mg alloy：Process optimisation and mechanical properties development [J].
[11] Jiang Xianfeng,Xiong Zhiyue,Wang Tonghe,et al．Microstructure,Investigation on the mechanical properties of 316L metal powders by SLM [J],2017,45(5): 510-515
[12] Lu Jianbin,Yang Yongqiang,Wang Di,et al．Analysis of affecting factors of overhanging surface quality by selective laser melting[J]．Laser Technology,2011,35(2): 148-151
[13] Zhu Xiaogang,Sun Jing,Wang Lianfeng,et al．Microstructure,Properties and Inclined Plane Forning Quality of Aluminum Alloy by Selective Laser Melting[J],2017,41(2): 77-80

They represent powerful analysis instruments to perform parametric studies, aiming at detecting the main factors affecting the seismic behavior of MRFs, thus leading towards appropriate design criteria.
The set up MRF model is in fact an advanced computational tool for performing parametric analyses necessary for catching the influence of any geometric and mechanical factor.
In Figure 1 the mechanical properties of the material and the displacement histories applied for the cyclic tests are also depicted.
The MRF specimen; Testing protocol for cyclic tests; Mechanical properties [mm] [16] where sy is the yield stress, su is the tensile strength, eu is the maximum strain, ey is the strain at yield stress, E is the modulus of elasticity, est is the strain at the onset of strain hardening, Est is the strain hardening modulus Behavior under monotonic loads.
“Quantification of building seismic performance factors”.

The results prove that the presence of oxirane rings and/or chlorine atoms on the ENR and CENR molecules prominently affects on overall studied properties of the vulcanized rubbers.
Crosslink agents also play significant role on Mooney viscosity, curing and tensile properties of the vulcanized rubbers, however, they are less influence on dynamic mechanical and thermal properties.
This rubber provides good properties combining between excellent properties of the ENR and the CNR.
The tested properties were Mooney viscosity (ASTM D 1646), curing characteristics (ASTM D2084), tensile property (ASTM D412), dynamic mechanical and thermal properties measured by DMA and TGA technique, respectively.
Tensile properties: Tensile properties of the rubber vulcanizates are summarized in Table 3.

In addition, to design Ti alloys with best balance of creep and fatigue properties, prior b grain size which affects fatigue properties and lamellar microstructure which affects creep properties were controlled by heat treatment.
Therefore, to apply Ti alloys in the compressor components, improvement of both superior oxidation resistance and mechanical properties at high temperature are required above 600 ℃.
Then, relation between microstructure and mechanical properties of the Ti-Al-Nb-Zr alloys have been investigated at 24 ˚C-600 ˚C [2-11].
Since mechanical properties are governed by microstructure, a microstructure evolution through various processing and heat-treatment conditions was investigated in Ti-7.5Al-4Nb-4Zr alloy [8, 9].
To apply Ti alloys in the compressor components, fatigue properties are also important in addition with creep properties.

Introduction To describe a forging process with the aim of linking fatigue life approach to microstructure, numerous process influence factors must be considered through the whole hot-forging process.
For hot-forged superalloy 718 components, especially at elevated temperatures, the derivation of dynamic fatigue strength based on static properties is in common not possible.
Main output of this step is a table containing geometric shape properties of each detected particle.
A selected number of independent geometric particle properties are used for further processing [6].
The strain fatigue life was calculated for each element as achieved by the Deform®-output of the user-defined microstructural element properties.

Mechanical performance of nanocomposites is strongly dependent on the interaction properties between the matrix and the reinforcement.
For discontinuous reinforcement polymer composites, the superior mechanical properties of the reinforcement need to be efficiently transferred to the matrix.
Therefore, the mechanical performance of nanocomposites is significantly influenced by the interaction properties of the reinforcement and the matrix [2-4].
Velasco-Santos, et al., Improvement of Thermal and Mechanical Properties of Carbon Nanotube Composites through Chemical Functionalization, Chemistry of Materials, 15 (23) (2003) 4470
Coleman, et al., Improving the mechanical properties of single-walled carbon nanotube sheets by intercalation of polymeric adhesives, Applied Physics Letters, 82 (11) (2003) 1682

Carbonation performance of RAC, as a main factor affecting structural durability, should be paid more attention while few research is found and its mechanical properties are the focus at the present.
According to available research [1-4], mix proportions of recycled aggregate have assignable effects on its mechanical properties and durability.
Their physical properties are shown in Table 1.
(3) RA content has different effects on carbonation properties of RAC when W/C is varying.
Influence of the amount of recycled coarse aggregate in concrete design and durability properties.