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A mechanism for ductile fracture is evident in the solution treated sample, where a large number of cells (dimples) are visible.
In addition, the pits appear to nucleate preferentially at the ferrite grains.

Out of the various numbers of joints produced using the FSW in this investigation, the joints fabricated employing a taper cylindrical pin profiled tool was found to be completely free from any type of welding defects and had been observed as a successfully fabricated joint free from defects.
Salem, FSW parameters: A tool for controlling abnormal grain growth during subsequent heat treatment, Materials Science and Engineering A, 391 (2005), p 51–59 [8] P.

The mechanical properties of Al-Si alloys depend, besides the Si, Cu, Mg and Fe-content, more on the distribution and the shape of the silicon particles, the grain size, dendrite arm spacing, porosity distribution or profile, size, volume and morphology of intermetallic phases [1-4].
A number of factors define the metallurgical structure in Al-Si castings and that determines the properties.

Numbers of pyrolysis studies have been carried out based on combined feedstock such as sewage sludge with rice waste [3] and sugarcane bagasse with petroleum residue [4].
Then, dried coconut shells and rice husks were grinded into powder with grain size of (<1 mm).

There are a number of requirements put on natural materials suitable for the production of insulators to be used in construction.
Straw - these fibres were obtained by means of production line defibration from stems and stalks of threshed and dried grain crop

After completion of the forging process, billet model will be formed as a ring internal gear, which is designed with parameters of tooth number 36, module 0.15, diameter 9mm, height 4mm, addendum diameter (inner diameter) 5.052mm.
Chang, Superplastic micro-forming with a fine grained Zn–22Al eutectoid alloy using hot embossing technology, J.

Currently, a large number of different methods of surface modification are used in production.
The underlying hardened layer, the thickness of which can reach up to 1 ... 1.5 mm, depending on the technological modes of processing and the means of technological equipment, is a ferrite at the grain boundaries of which there is a small amount of iron and tungsten carbides.

It depends on a number of factors such as the pH value of the solution, the degree of swelling of wood filler particles, the temperature, the presence of active groups, etc.
It is known that the hydration of cement grains with a wood filler is greatly different from the normal concrete.

whereis the initial concrete strength, is the parameter determining an increase in concrete strength due to lateral compression, is the yield strength of spiral reinforcement steel, is the deformation of uniaxially compressed concrete at maximum stress, is the initial modulus of elasticity of concrete, is the modulus of elasticity of spiral reinforcement steel, is the cross-sectional area of the spiral reinforcement is the spiral reinforcement pitch, is the diameter of the concrete core inside the spiral reinforcement, is the concrete axial strain at the i-th calculation step, is the corresponding tensile strain of the spiral reinforcement, is the stresses in spiral reinforcement at the i-th calculation step, is the spiral reinforcement prestress (if any), is the relative lateral pressure on the concrete core at the i-th calculation step ( ), mс is the material coefficient, determined experimentally (for heavy concrete, it is recommended to adopt mc=9, for fine-grained
To consider different stiffnesses of normal sections along the length l, the rod is divided along the length into an even number of equal sections (at least six).

In the manufacture of microsections, samples were processed on 4 numbers of sandpaper (sanding), followed by polishing by standard technology.
Grain size effect on wear resistance of a nanostructured AISI52100 steel.