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Improving the Mechanical Properties of a Machine Component of A Fishing-net Weaving Machine by Duplex Coating Naphatara Intanon1,a, Charnnarong Saikaew2,b, Anurat Wisitsoraat3,c, and Parinya Srisattayakul4,d 1,2,4Department of Industrial Engineering, Khon Kaen University, Thailand 3National Electronics and Computer Technology Center, Thailand anaphatara.int@neu.ac.th, bcharn_sa@kku.ac.th, canurat.wisitsoraat@nectec.or.th, dparinya28@yahoo.com Keywords: Duplex coating, sputtering, electroplating, hardness, weaving machine Abstract.
In this study, the mechanical properties of a weaving machine component made of cast stainless steel are improved by the duplex coatings of electroplated hard-chrome and sputtered metal nitride layers.
In addition, the hardness of single-layer coating either with hard-chrome or metal nitride was only 2-3 times higher than uncoated ones whereas duplex coating with both layers synergistically increases the hardness by a factor of 7-8.
Non-plated samples were also sputtered at the same time as the plated ones in order to compare the effect of duplex coating on the surfaces and on the mechanical characteristics of the hooks.
The results indicate that the hardness of the underlying layer or material can substantially affect the hardness of the top surface layer.

It is well-known that the rheological properties of gum solution can significantly affect the processibility of vacant capsules.
Hence, the rheological properties of sodium alginate/agar/MMT solution had been measured and discussed in this paper.
And then, a stable suspension was obtained by mechanical agitation in the thermostated bath.
Conclusion In this paper, the rheological properties of SA/AR/MMT solutions were investigated using a rotational viscometer.
Rheological Properties and Sugar Composition of Locust Bean Gum from Different Carob Varieties (Ceratonia siliqua L.), J.

Introduction Recently, manganese oxide and derivative compounds have captivated more and more attention because of their special structural flexibility combined with novel chemical, physical, mechanical properties, which led them to many applications such as molecular sieves [1], catalysts [2], Li/MnO2 batteries [3-5].
In the other hand, with the development of one-dimensional (1D) materials, the morphology and the size of the nanomaterials are regarded as two importance factors favoring the unusual properties of the materials.
The prepared nanorods may have potential applications in catalysts, magnetism, lithium batteries and so on, due to their different physical properties.
In order to investigate the magnetic properties of Mn2O3 nanorods synthesized at different calcination temperature, the EPR technique is used here.
EPR parameters, g value, line width, line shape, etc., are largely affected not only by metallic transport properties but also the preparation methods and the purification process[27].

A computational algorithm, which takes into account two factors, has been suggested.
Firstly, the gradient of material properties resulting from the changes in the carbon content in the surface layer after the carburizing process.
The other is a process of quenching, which brings about significant changes in the material properties and in the geometry of a detail under treatment.
In the first step material issue lists with the properties mentioned above were entered.
A material with different properties was assigned to each of the sub-layers.

The airfoiles of wind turbine blade structure are more perfect and the mechanical properties of materials are significantly improved based on these researches.
Considering Xinjiang's geographical factors, it is obvious that climate change of four seasons and day-and-night temperature difference.
Based on the climatic conditions in Dabancheng, the effect of extreme temperature on the properties of wind turbine blade is studied.
Therefore, the impact of extreme temperatures on blade properties can not been ignored.
In the next 30 years, the temperature factors will become one of the considerations while designing optimization of wind turbine blade under the cold phase phenomena and the hot phase phenomena.

The chemical composition could affect the coating mechanical properties such as thermal expansion coefficient, creep and plastic.
The factors affecting the rumpling formation on the NiPtAl coating still need to be found out.
The mechanical properties, such as thermal expansion coefficient among the oxide, bond coatings and substrate layers were dynamically changed with increasing the exposure time.
The γ´-Ni3Al could induce local coating mechanical properties inhomogeneous besides changing the properties of the whole coating, which drastically changed the stress distribution and appeared to make some contribution for the rumpling after cyclic oxidation.
The γ´-Ni3Al formation changed the mechanical properties of local part for the coating and induced cracks formation within the ridges.

The load carrying capacity of columns is affected by their stability and cast-iron strength in compression and tension.
Introduction In the 19th and early 20th century cast iron was popular construction material for columns and beams (compressed part), utilising its favourable mechanical properties.
General framework of the uncertainty assessment for models of cast-iron columns with examples of influences affecting test and model results is given in Figure 1.
Properties of cast iron Cast iron is generally an alloy of iron, carbon and other elements.
Using Approach 1 [6], σc is obtained as: σc = χc × σ0.2 (3) where σ0.2 = nominal strength based on the stress-strain curve proposed in [7]; and χc = slenderness reduction factor obtained similarly as recommended in EN 1993-1-1:2006 [5] with considerations for specific properties of cast iron.

Low alloy TRIP steel is expected to be applied to automobile bodies because of its high strength, high ductility, and excellent impact properties and press formability.
Then, these results are discussed about the relationships between mechanical properties and microstructure of the TM steel.
This means that the amount of retained austenite used for transformation induced plasticity is small, and there is a possibility that martensitic transformation may occur due to factors such as the introduction of hydrogen embrittlement.
In this study, the retained austenite properties and their hydrogen embrittlement resistance properties of TM steels produced at various cooling rates below Ms temperature are investigated and discussed their relationships.
Dong, Microstructure and mechanical properties of Fe-0.2C-5Mn steel processed by ART-annealing, Mater.

It is well known that many mechanical and physical properties of structural ceramic materials depend critically on composition, manufacturing process, microstructure, density and environmental temperature mainly.
Therefore, obviously the effects of porosity, pore shape factor, grain size, elastic modulus and external environmental factors are extremely important for the fracture strength of porous ceramic materials.
This situation not only places a limit on fully exploiting the potential properties of the relevant materials, but also affects correct analyses of the related structural characteristics and damage during extreme thermo-mechanical coupling conditions.
If the magnitudes of increases of values of those factors are the same as that of decreases, the effects of decreases on strength are more significant than that of increases.
And the effects are more significant with the bigger magnitudes of decreases and with the smaller magnitudes of increases of values of those factors.

Based on a number of studies [3, 4] showing that spray flow (A), spray distance (B) of Oxygen/Propane (C) ratio are the main factors affecting coating quality.
The curves in the hierarchical chart represent the change in impact dynamic of factors affecting the porosity of the coating.
Results from Table 8 show that the degree of small error, they show that the factors affecting the study are the main factors affecting the porosity of the coating and they are statistically significant with It is highly reliable because the P value obtained is <0.05.
Calculating the percentage effect of factors based on Table 8, we have: Spray distance is the biggest factor affecting the porosity of coating with 69.4%, Oxygen / Propane ratio is 17.5%, spray flow is 12.9% and as it is illustrated in a chart in Fig. 4.
Baum, HVOF-Sprayed Alloy IN718 - The Influence of Process Parameters on the Microstructure and Mechanical Properties, in: Thermal Spray: A United Forum for Scientific and Technological Advances, C.