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The most significant factors influencing the transmission gearbox synchronizer rings restoring process are: stamp deforming element thickness, plunging depth and distance to a recoverable surface.
The main reason for these parts failure is loss of performance as a result of mechanical wear.
Use of welding, weld cladding and metallization to restore this group of parts is difficult because it leads to residual stresses in an applied layer, zinc burnout and deterioration of operational properties.
The most significant factors affecting a plastic deformation zone size are: thickness of a stamp’s deforming element, plunging depth and distance to a restoring surface.
Mazur, Improving the structure and properties of heat and abrasion resistant cast irons by treating them with calcium strontium carbonate, Journal of Chemical Technology and Metallurgy. 53(5) (2018) 986-989.

Kurdyumov Institute for Metal Physics, Vernadsky blvd 36, 03680 Kiev 142, Ukraine e-mail: agavr@imp.kiev.ua, bshyva@imp.kiev.ua, cteus@imp.kiev.ua Keywords: Hydrogen embrittlement; Austenitic steel; Electronic structure; Dislocations; Mechanical properties.
The effect of alloying elements on the mechanical properties is studied and a concept for design of hydrogenresistant austenitic steels is proposed.
A reason for that is the hydrogen-enhanced metallic character of interatomic bonds, which should substantially affect properties of dislocations in hydrogen-charged austenitic steels.
Mechanical properties of hydrogen-charged steels The compositions of studied steels are presented in Table 2.
The hydrogen-induced εH-martensite can be another factor affecting hydrogen brittleness.

And in recent years, electrospun PET mat has been applied in various areas [5.6.7.8], due to its advantageous mechanical properties, low cost and biocompatibility.
Generally, the size of sample for mechanical testing was 3.18mm wide and 25.4mm length punched from the mat.
DSC thermograms of electrospun PET mats before/after thermal treatment Tensile properties According to theory, the more intersection point of fiber, the stronger tensile properties.
Tensile properties of electrospun PET mats before/after thermal treatment From the Table 2 and Fig. 3, it can be seen that the thermal treatment could improve the tensile properties of electrospun PET mats, if the suitable temperature was been chosen.
The connection between the fibers is the most important influencing factor on tensile properties of electrospun mats.

SCBT0.3 + Mn x wt% lead-free ceramics showed an extremely high mechanical quality factor (Qm) of more than 3000 in the (33) vibration mode under small-amplitude vibration.
Table I shows the piezoelectric properties under small-amplitude vibration for SCBT0.3-based ceramics poled at 200ºC.
Thus, piezoelectric properties at large-amplitude driving cannot be considered from those at small-amplitude driving.
Figure 5 and Table II show the P-E hysteresis loops and polarization properties of SCBT0.3 + Mn x wt% ceramics.
Table I Electrical and piezoelectric properties of SCBT0.3 + Mn x wt% ceramics under small- amplitude vibration.

Analysis on construction delay of suburban roads Yanting Ma1,a, Chunjie Ma2,b 1,2Institute of civil engineering, Zhejiang University, Hangzhou, China atina.margaret@163.com, b13905742430@139.com, Keywords: Suburban roads, Construction delay, Risk factors, Countermeasures Abstract.
It may cause the construction delay, property loss, and even leave serious quality problems if handled improperly.
This article analyzes the reason of suburban roads construction delay from the behaviors of the owner, construction units and the supervision units to find the factors affecting construction schedule, increasing cost and lowing efficiency, then puts forward the corresponding countermeasures to explore the path of sustainable development. 2.
On the other hand, when faced with the peak construction period, a common-use mechanical will be called back and forth on the working plane.
In such situations, some only involve in the procedure itself, without affecting the completion of other procedures, but some in key path will influence the progress of the whole suburban road, cause serious construction delay.

There are two typical seismic damage characteristics to the masonry building with frame shear wall structure at first two stories, and the lateral stiffness ratio of the third storey to the second storey is one of the key factors mostly affecting the seismic performance of this kind of building.
Also, the factors that considered in an experiment are limited.
So the lateral stiffness ratio of the third storey to the second storey (K3/K2) is one of the key factors mostly affecting the seismic performance of this kind of building.
For there are no damaged plasticity models for bricks, considering the brick and concrete are brittle materials and the two constitutive relation curves are similar, we can consider mechanical properties of the two materials are similar.
Modal properties.

Boron carbide-based ceramics will be probably the most promising materials during the next decades due to their excellent mechanical properties combined with its chemical stability and low-density.
Room-temperature mechanical properties of pure boron carbide have deserved considerable attention due to its remarkable hardness and resistance to shock-impact; however, its high-temperature plasticity with unusual ductility remains unexplored.
Chhowalla M, Boron carbide: structure, properties and stability under stress, J Am Ceram Soc, 94 (2011) 3605-3628
Zaretzky, Static and dynamic mechanical properties of boron carbide prepared by spark plasma sintering, J Eur Ceram Soc, 29 (2009) 3395-3400
Enhanced mechanical properties of nanocrystalline boron carbide by nanoporosity and interface phases.

The selection of the intermediate layer bases on such factors as bonding requirements, wear mode, contact type, and friction system during production operation.
The chemical composition and mechanical properties are shown in Table 1 and Table 2, respectively.
At the same me, the material has higher comprehensive mechanical properties, namely, it has higher strength, higher toughness, higher plasticity and higher hardness.
Graphite belongs to the mixed crystal, which not only has the properties of crystal, but also has the properties of molecular crystal.
Study on environmental tribological properties and electrochemical corrosion properties of diamond-like films [D].Southwest University, 2014

Therefore, extensive studies have been done on the crystallographic, physical and mechanical properties of Co3Ti compound to explore the best combination of properties.
It has detrimental effect on the mechanical properties.
Investigations have been done on the relationship between microstructure and mechanical properties in binary CoAl alloys.
When these factors have been minimized, improvement in ductility has been noticed in the alloy containing L12/B2/(Co,Ni) three phases.
An increase in the volume fraction of the γ-phase improves the mechanical properties.

It is shown that the deformation either by simple or pure shear mode to the same equivalent strain results in alike mechanical properties, both monotonic and cyclic.
High-cyclic fatigue properties of rolled and ECAPed Cu.
Summary Summarizing the experimental findings of the present work and the data available in the literature, we arrive at the following conclusions. 1) The deformation mode is not among the factors playing key roles in controlling the HCF properties: the specimens produced by rolling and by ECAP to the same stain demonstrate quite similar monotonic and cyclic properties. 2) Since the strengthening effect for both monotonic and cyclic strength is most pronounced on the early stages of straining, the judicious design of the first pressing operations is important to achieve the efficient low-cost monotonic and fatigue strengthening.
Finally, we should notice that materials purity strongly affecting the dislocation activity is among the factors which are of crucial importance for HCF performance [16].
Höppel, in: Structure and mechanical properties of nanophase materials-theory and computer simulation vs. experiment, edited by D.Farkas, H.Kung, M.Mayo, H. v.