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The ECAP deformation occurs in a matrix that contains two channels of the same cross-sectional area and form an angle of Φ = 90° and Φ = 120°, the process can be repeated many times allowing to control the microstructure and properties of the materials.
As the cross-section of the sample remains approximately constant, the process can be repeated many times allowing control the microstructure and thus the final properties of the materials [4,5].
However, surface cracks will oxidize during reheating and, with the conformation, these oxides will settle into the resulting product, thus affecting the mechanical properties.
The primary globule size (GLS) and the roundness shape factor (SF) was measured using the ImageJ software on 14 micrographs.
The value of the shape factor (SF) indicates the globular structure.

The physical properties, chemical properties of coal gangue and raw materials and compression rebound modulus of the coal gangue were studied in this paper.
Some physical properties and chemical properties of the coal gangue are shown in the Tab.1: Tab.1 The physical and chemical properties of gangue ignition loss [%] crushed value [%] water absorption [%] liquid limit[%] plastic limit [%] free expansion rate [%] 13.61 29.69 3.40 31.06 23.62 25 As table 1 shown, the ignition loss of the coal gangue and water absorption are relatively small; it is non-expansive soil according to the liquid limit and the free expansion rate is less than 40%;the crushed value is 29.96%, which is less than 30% , meeting the requirements of highway projects on the aggregate crushing value.
The coal gangue mixture adopt datum proportion, which let coal gangue: fly ash: lime powder：cement = 1: x1: x2: x3, namely fly ash, lime powder, cement relative to the quality of the Gangue content as the factors, and the 8 level ,8 level, 4 level is selected to make the mixed-level design respectively.
(During the curing period, the lime plays continuous excitation to the fly ash or coal gangue and the mechanical property of the coal gangue mixture is increasing.
Conclusions (1)Through the laboratory experiments, the basic physical properties and chemical properties of the coal gangue are studied.

Ag doping could improve the photocatalytic properties of TiO2, and could make better use of antimicrobial silver[4-6].
Antimicrobial properties test.
The sample was washed 10 times, and then testing the appropriate properties.
From the economic efficiency and the performance of fabric, the more antibacterial agent, the more silver content, it not only wasteful, but also make the fabric discoloration, affecting the whiteness and washability [12-15].
Mechanical behavior of farbic.

Finally, the resin is examined for its properties on the basis of GB methods.
Methods to get the properties of liquefied factory-sawdust resin.
Optimum resinification of liquefied sawdust processing parameters In order to achieve the most suitable processing parameters of the resinification of liquefied factory-sawdust in phenol, it needs to take various factors which affect the reactions into account.
The orthogonal experimental factors and levels, and results are shown in table1.
Synthesis o f wood-based epoxy resins and their mechanical and adhesive properties.

They present numerous advantages from a metallurgical point of view to high properties.
Two factors affected the hardness: δ-ferrite content and the carbides formed in the weld.
Chih – Chun Hsieh, Dong – Yih Lin, Ming – Che Chen, Weite Wu, Microstructure, recrystallization, and mechanical property evolutions in the heat – affected and fusion zones of the dissimilar stainless steels, Mater.
Olson, Prediction of Austenitic weld metal microstructure and properties, Weld.
Tae-Hoon Nam el.al., effect of post weld heat treatment on the microstructure and mechanical properties of a submerged – arc – welded 304 stainless steel, Metal, Vol.8 No.26 (2018), p.1 – 13

Factors influencing calcium phosphate deposition on three dimensional printed hydroxyapatite (3D printed HA) by biomimetic process including soaking times (2, 4 and 6 hrs), solution temperatures (23, 37 and 50 °C) and solution refreshment (refreshed and non-refreshed) were studied.
In this study, the factors influencing biomimetic deposition of calcium phosphate crystals on 3D printed HA including soaking times (2, 4 and 6 hrs), solution temperatures (23, 37 and 50 °C) and solution refreshment (refreshed and non-refreshed) on phase composition, deposition content and microstructure were investigated.
The differences in properties amongst samples were analyzed using an analysis of variance (ANOVA) and Tukey post hoc testing.
The refreshment of ACS solution was needed to maintain high rate of deposition especially at high temperature where the dissolution of 3D printed HA was pronounced without affecting the phase and microstructure compared to using non-refreshed solution.
Layrolle, Proteins incorporated into biomimetically prepared calcium phosphate coating module their mechanical strength and dissolution rate, Biomaterials, 24 (2003) 65-70

., mechanical overload), or an abnormality of the underlying subchondral bone [5, 6] are the main detailed factors to produce articular cartilage lesions.
Scaffolds can be used either alone or as delivery vehicles for cells, mitogens or growth factors
It contains key components such as type II collagen, proteoglycans, and additional cartilaginous growth factors.
Moreover, such materials should be able to support cell growth and proliferation, incorporate growth factor and present appropriate mechanical properties during all the tissue regeneration process.
Khademhosseini, The mechanical properties and cytotoxicity of cell-laden double-network hydrogels based on photocrosslinkable gelatin and gellan gum biomacromolecules, Biomaterials 33 (2012) 3143-3152

So damage factor calculation formula: .
Therefore, under the premise of without affecting calculation accuracy and convergence rates, the viscous coefficient must be as small as possible.
The parameters in plastic damage model can affect the calculation results in different degree.
Investigation into static properties of damaged plasticity model for concrete in ABAQUS [J].Journal of PLA University of Science and Technology, 2007, 8(3):255-260
Experimental Research of Mechanical Behavior on Reinforced Concrete Slab-Column Connections[D].Southeast University of Thesis for Master Degree. 2002

Experimental Evaluation of Rheological Properties of Water-Based Drilling Fluid with Fly Ash Additive Dr.
Throughout the drilling process, it is necessary to precisely monitor, manage, and maintain parameters including density, flow properties or rheology, filtration, solid content, as well as chemical properties, at their pre-selected level.
The yield point factor is due to gelling.
b) Study the effect of temperature variation on rheological properties of drilling fluid.
The rheological properties of 10% of fly ash in a new base fluid hard the appropriate fluid properties that the plastic viscosity is approximately 1.897 Pa-sec, yield point 4.6 Pa at variable shear stress and 2.7 Pa at variable shear stress.

The creep specimens are taken from the extrados part of the elbow, the chemical composition shown in table 1 and mechanical properties under normal temperature accord with ASTM A335 [4].
Due to the difference in materials properties, in heat treatment and forging process, the extrapolated creep rupture strength may be different.
Damage factors are calculated according to eq.3. 0.0 0.2 0.4 0.6 0.8 1.0 0.00 0.04 0.08 0.12 0.16 D t/tr 225MPa 207MPa 190MPa 175MPa 0.0 0.2 0.4 0.6 0.8 1.0 0.00 0.04 0.08 0.12 0.16 D t/tr 190MPa 175MPa 160MPa 148MPa 141MPa (a) (b) Fig. 3 Damage factor vs. life fraction at (a) 595℃ and (b) 610℃ Owing to the lack of creep experiment data at 640℃ and 670℃, the creep damage factors are calculated only at 595℃ and 610℃.
Damage factors change with the life fraction rt t under various stresses, which is shown in Fig. 3(a) and (b).
The creep damage factors at 595℃ and 610℃ were calculated using θ function method and Norton creep damage formula.