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Introduction Oil contains a large number of corrosive substances.
Because of the heat preservation of root layer, the grain of the other two layers has grown.

Cold rolling is operated for the work hardening, refinement of crystal grain size, highly dimensional accuracy and improvement of surface quality.
Form the above, the manufacturing cost of Aluminum strip become high because of the number of processes.

Theoretical Foundations and Experimental Methods With increasing temperature, the number of vacancies (holes) in the sites of the crystal lattice increases continuously.
M-elements act as inhibitors of grain growth during alloy nanocrystallization [10–11].

Previously it was determined that overburden chalk of the Lebedinsky Mining and Processing Works contains over 92 % of CaCO3 and is noted for significant variability of the grain-size composition.
Acknowledgements The reported study was funded by RFBR, project number 19-38-90192\19.

Grain size analysis values were used to meet the particle fineness requirements for the following studies.
To determine the number of magnetite compounds in the samples, they were subjected to magnetic separation.

In the case of presence of great number of eutectic clusters of Al-Mg2Si eutectic in the HAZ or very near the fusion line, due to formation of liquation cracks in such places, rupture may take place in the HAZ or directly in the fusion line.
The microscopic metallographic tests revealed slight stirring of the material in the weld area and relatively small grain growth as well as the precipitates of phases in the weld and HAZ.

It was observed that the hexagonal pore cells have a tendency to separate within the grains boundary which can be attributed to strong repulsive force among the pore cells caused by high volume expansion at high field.
However, if the voltage is lower the general nucleation process is slowed and therefore greater number of pores.

It is found that the prepared samples are anatase titania with average grain size of about 10 nm and the BET specific surface area of about 130 m2/g.
Furthermore, considering that the ionic radii of the doped metal ions (Cu 2+: 0.072 nm, Fe 3+: 0.064 nm, Pd 2+: 0.086 nm, V 5+ : 0.059 nm) are similar to that of Ti4+ (Ti 4+ : 0.068 nm) for a coordination number of 6, these doped metal ions can likely be incorporated into the TiO2 matrix by substituting for the Ti4+ lattice sites.

In particular, small grains are still largely present after sintering at 1000 o C whereas dense and bulk microstructures feature the sintered samples after heat treatment at 1300o C.
Acknowledgements This study was carried out with the financial support of the Turkish Republic Government Planning Organization via the Project "Manufacturing and Characterization of Electro-Conductive Bioceramics", number 2003 K120810.

The test pieces had pure β-Si3N4 microstructure with a grain boundary glassy phase [9].
For loading rates of 0,78 and 2,88 m/s 5-5 specimens were tested, however the number of valid test data were occasionally less (see test results).