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The surface of copper plate of the mold need to be reinforced to obtain the plating coatings with high hardness and corrosion resistant properties.
The effective factors on the property of coatings, bath temperature, cathode current density, the distance between two electrodes and the magnitude of Nano-ZrO2,were experimentally studied.
The layer with good properties can be obtained in this method.
Factor C and factor A link the third and the fourth effective factors on the property of the coatings.
Structure and Properties of Ni-WC Nano-Composite Coating by Electroplating.Sueface Technology[J]. 2008(10): 70~74.In chinese

Therefore, to compare and analyze their mechanical properties, physical properties, chemical properties and processing properties will provide the selection and design with the scientific basis.
The corrosion resistance of alloy in the atmosphere and seawater is better, and it has good comprehensive mechanical properties and machinability in the room temperature.
The titanium alloy has good comprehensive mechanical properties, and the maximum strength of titanium alloy can be up to 1400 MPa.
Those factors indicate that the manufacturing process must be designed respectively.
Mechanical Properties of Engineering Materials [M].

Data on the influence of various factors on balancing accuracy are presented.
It is because of lack of efficiency of liquid autobalancing devices due to the low density of such liquids, that the factors affecting the balancing accuracy have not been extensively analysed.
Hence, there appeared the necessity to investigate various factors affecting the accuracy of balancing.
Results Let us consider the effect of various factors on balancing accuracy since it is necessary for the explanation of the further research.
Cherdantsev, Properties and structural state of the surface layer in a zirconium alloy modified by a pulsed electron beam and saturated by hydrogen, Technical Physics.  57  (2012) 392 – 398 [10] V.E.

To carry out the purpose, FGM is an expected material that enables to improve the certain properties and affinities.
The FGM enables to change some kinds of properties and affinities in various ways.
Properties, conditions, and appearances of the ferrite powder are shown in Table 1 and Fig. 1.
Curing behavior, in particular to the change of temperature, is an important factor because the magnetism of the particles is affected by high temperature.
To carry out the purpose, FGM is an expected material that enables to change the certain properties and affinities.

CNTs have a large surface area and unique mechanical properties [4-6].
The introduction of nanotubes into the composite matrix significantly improves the mechanical properties of polymeric materials.
The mechanical properties of composites depend on the concentration of nanotubes in the polymer matrix.
The bending stress of composites increases by a factor of 1.28.
Karbushev, Rheological and mechanical properties of polymers filled with nanosized particles of detonation synthesis diamonds. diss.

Stress concentration factor can be obtained in formula (1)
(1) where ——bending stress ——crack length ——bending stress coefficient is determined by the shape and mechanical properties of parts Bending stress is shown as follows: (2) In formula (2),——bending moment, when the eccentricity is e, the bending moment is = R ×e (3) In formula (3), R——limiting force of hammer rod When formula (3) is inserted into formulae (1) and (2), K can be found by formula (4) (4) K is turned into the critical stress concentration factor Klc, namely K = Klc, crack
The minimum safety factor is set at 1.3.
The minimum safety factor is 1.94.
Mechanical workers.

Status and development trend about the fatigue properties of welded joints of magnesium alloy were reviewed.
Fatigue properties of welded joints of magnesium alloy can only reach about 60%~70% of base the metal [5].
The initiation, propagation and combining of micro fatigue crack might form one or more macro-cracks, which result in a decline in mechanical properties of magnesium alloy, and final fracture occurred by cyclic softening.
Secondly, Fatigue test is complicated because the fatigue of magnesium alloy is affected by environmental factor such as corrosive media, elevated temperature, and so on.
Trend of study on fatigue properties of welded joints of magnesium alloy There are a lot of factors influencing fatigue strength of welded structures, the main factors are including stress concentration, tensile residual stress, microstructure in the joint, weld defects and so on.

Effect of Laminate Configurations on Impact Properties of GFRP Composite in Seawater S.K.
These were investigated for the effect of seawater on its impact properties.
This would significantly degrade the mechanical properties of the laminated component [4].
It is also known that the mechanical properties of fibre reinforced composites materials degrade with hygrothermal (immersion in seawater) exposure [6, 7, 8].
The impregnation of the resin is a complex process and is greatly influenced by several factors, such as orientation of the fibrous preform, mould temperature, resin viscosity, and injection pressure [13, 14, 15].

This research thought that the key factor to bring about the conclusion is the large initial damage of HSC during notch formation.
This damage property and extent of HSC should be paid more attention since they affect directly the accurate fracture energy test of HSC and safety, adaptability and endurance of the structure[4].
Furthermore, cracking resistance properties of the aggregate itself is distinct [5].
Fracture toughness is also affected by the initial damage during notch formation and concrete flexure strength.
Tianjin City Construction College’s Academic Paper(1997) [3] Arthur H.Nilson, David Darwin:Design of Concrete Structures (WCB/McGraw-Hill,Inc, United States, 1997 ) [4] Yu Shouwen and etc: Damage mechanics (Tsing Hua University Publishing House, China 1997) (In Chinese) [5] Yu Xiaozhong and etc: Fracture mechanics of Rock and Concrete (Central South Industry University Publishing House, China 1991) (In Chinese) [6] S P Shah,SH Ahmad: High Performange Concrete: Properties and Applications (McGraw-Hill, Inc 1994) [7] J.K.Kim,C.

In realization of the heterogeneous welded joints, using different technology or technique of welding, one must take into account a number of factors such as [1]: the differences between the coefficients of thermal expansion of the two materials; the differences between the melting points of the materials; the degree of moistening for the surfaces of ceramic materials (non-metallic); the tendency to form intermetallic compounds or some distinct structural phases in the interface.
A brief description of the mechanical properties and chemical composition, corresponding to these two grades of steel, is presented in Table 1 and Table 2.
A brief description of the chemical composition and mechanical properties of the flux cored wire is presented in Table 3 based on the data in the quality certificate.
Mechanical properties of the basic materials Material Tensile Strength [MPa] Yield strength [MPa] Elongation [min,%] 316L 485 170 40 S235JR + AR 360 - 510 235 26 Table 2.
The chemical composition and mechanical properties of the filler material Filler material T 23 12 LPM 1/C1 Chemical composition [%] C Si Mn P S Cu Ni Cr Mo Nb N 0,04 0,65 0,600 0,019 0,009 0,133 12,540 22,85 0,162 0,025 0,0266 Mechanical properties Test temperature Yield strength ReL Tensile Strength Rm Elongation +20 [ºC] 460 [N/mm2] 610 [N/mm2] 31 [%] In order to execute the joint between the plates, a groove with the dimensions presented in Fig. 1 was made.