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No clear heat affected zone (HAZ) was observed.
The surface tension and vapor pressure are the key factors to stabilize the keyhole.
Pyzalla, Microstructure and mechanical properties of magnesium alloy AZ31B laser beam welds, Mater.
Barrallier, Texture evolution in Nd:YAG-laser welds of AZ31 magnesium alloy hot rolled sheets and its influence on mechanical properties, Mater.
Zhou, Microstructure and mechanical properties of fiber-laser-welded and diode-laser-welded AZ31 magnesium Alloy, Metall.

In the paper there are summarized results of diffusion properties of mortars.
Water vapour permeability represented by diffusion thicknesses and water vapour resistance factors are except mechanical properties the most important physical parameters of historic buildings.
Everything depends on a type of binder, a material of a structure itself and primarily on properties of mortar and plaster and finishing.
These properties were determined before tests of diffusion parameters.
How relative humidity affected water vapour resistance factor is possible to see in following Tab. 10.

This is the normal solidification sequence and causes a serious deleterious effect on certain mechanical properties of the weld.
Thus, a refined equiaxed structure is most desirable in fusion-welded materials in promoting good mechanical properties [16].
The more the colonies of small sized equiaxed grains the better the mechanical properties of the weld.
However, this work did not assess the mechanical properties of the weld in relation to those of the base steel.
The pulsed AC weld, however, exhibited better mechanical properties.

Introduction Metal plastic forming process has two major advantages of meeting shape requirement and improving mechanical properties, especially for forging process.
As is known to all, mechanical properties are related to the microstructure for a structure part.
Therefore, controlling microstructure of both gear surface and shaft part is as essential as their forming during forging a gear shaft for getting a gear shaft product with comprehensive mechanical properties.
The prediction of microstructure and properties of the gear shaft is useful for actual production.
Punch speed was also an important factor which directly affected the strain rate and the temperature field distribution, and further affected the recrystallization.

Composite with woven ramie as reinforcement is a combination of woven from hemp plant fibers with resin adhesive (matrix) which each has different characteristics, which with the combination will produce a new material with better properties.
Introduction Composites from fiber materials are continuously researched and developed to become alternative materials to replace metal materials, due to the superior properties of fiber composites.
Fig. 4 shows that the magnitude of the tensile stress on the ramie fiber composite is influenced by several factors, the spindle speed, feed rate, and the diameter of the drill bits used when grinding the ramie fiber composite.
Hariyanto, Analysis of Tensile and Impact Properties of Ramie Fiber Composites using Alkali Treatment Within 2,4,6 and 8 Hours with Polyester Matrix, Media Mesin: Majalah Teknik Mesin. 18 (2017) 64–75. doi: 10.23917/mesin.v18i2.5238.
Kalam, and N.R Nik Roselina, Open hole tensile properties of Kenaf composite and Kenaf/fibreglass hybrid composite laminates, Procedia Engineering. 68 (2013) 399–404. doi: 10.1016/j.proeng.2013.12.198

The float-sink properties in the water of feed are determined by pellet density, different float-sink properties of feed are proposed by different fish, so the feed density is different.
For example, tropical fish needs the floating feed; while predatory fish which lives in cold water needs the feed with properties of slow sinking [3].
There are many factors affect the feed pellet density, such as forming scheme and process parameters, structure parameters of forming equipment, and feed ingredients and recipes.
And the influence of extrusion speed, the depth of die hole and interaction of the two factors on feed pellet density was analyzed by experiment method.
Determination of feed physical properties [J].

The formation of intermetallic compounds in brazed joints between SUS304 and nickel-based filler metal is a major concern, since they considerably degrade the mechanical properties of joints.
The results showed that, the mechanical properties of brazing layer could be stabilized through increasing the brazing temperature over 100° C more than melting temperature of filler metal, and increasing the brazing time over 120min. long, and diffusing enough the intermetallic compounds formed in the brazing layer to the base metal.
In the present study, in order to obtain high brazing strength of stainless steel and undertaken to investigate the properties and microstructure of SUS304/BNi-2 filler metal brazed systems, and the influence of brazing parameters on the maximum joint strength.
Brazed joint properties were evaluated at room temperature and using tensile test.
The mechanical properties of brazing layer could be stabilized through increasing the brazing temperature over 100°C more than temperature of filler metals, and increasing the brazing time 120min. long, and diffusing enough the brittle intermetallic compound formed in the brazing layer to the base metal.

Its performance will directly affect the stability and service life of the instrument and equipment [1].
The effects of Gr content on the microstructure, mechanical and electrical properties of copper matrix composites were studied, which provided theoretical basis for the application of Gr/Cu composites.
The defects such as internal pores in composites will lead to the decline of the comprehensive properties of the composites.
This may be caused by two factors.
Sun, The thermal, electrical and thermoelectric properties of graphene nanomaterials, Nanomaterials. 9 (2019) 218-246

Because of the difference between oil and water in physical and chemical properties, research on the design method of water hydraulic slide valve is important to design the water hydraulic servo valve.
The factors which impact the static characteristics of slide valve like the spool opening, flow coefficient, incidence angle have been discussed.
Because of the difference between oil and water in physical and chemical properties, the flow coefficient of valve port using oil as its working medium can't be applied when the working medium is substituted by water.
In order to design an applicable water hydraulic servo valve, it's necessary to study the factors which influence the static characteristics of the slide valve with CFD software Fluent.
At the same time, the mechanical energy converts to the heat energy of fluid, which affects the service life of components. so, reducing the vortexes and turbulent kinetic energy as more as possible is important.

It reduces worker contact with liquid resin whilst increasing component mechanical properties and fiber content by reducing voidage compared to hand lay-up.
The present study faced manufacturing of composite laminates with recycled fiber and aimed at determining their mechanical properties to evaluate future applications.
FIMEC is a non-destructive indentation test, suitable to evaluate the local mechanical properties of CFRP plates, as a preliminary study by the authors has shown [9].
Table 1 Typical cured resin properties [AME 6001 INF-90 4044 v1 EN-1 © 2014 Ashland Inc.]
Mechanical tests were performed to investigate the effects of the configuration on the properties of the laminates.