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However, traditional methods of hardening do not always meet modern requirements for structural materials.
Materials and Experiment Investigation of the preliminary heat treatment effect in the glass mass on the microstructure and mechanical properties was carried out on samples carved from bars of grades 50 and 40H.
Gulyaev, Metallurgical science, Alliance publ., Moscow, 2012
Zhou, Structure-mechanical property relationship in a high strength microalloyed steel with low yield ratio: The effect of tempering temperature, Materials Science and Engineering. 609 (2014) 209-216
Siva Kumar, Effect of tempering time on the ballistic performance of a high strength armour steel, Journal of Applied Research and Technology. 14, is. 1(4) (2016) 47-53

Introduction Many scholars in iron and steel materials research found the phenomenon of austenite thermal stabilization [1] .
,Science Press, Beijing, 1999
,Materials Science and Engineering., MITEd.
Journal of Chinese Electron Microscopy Society. 29 (2010) 689-692
Yu, Microstructure development and mechanical properties of quenching and partitioning(Q&P) steel and an incorporation of hot-dipping galvanization during Q&P process, Materials Science & Engineering A .586(2013)100–107.

Influence of New System Nano – Inhibitors on the Abnormal Grain Growth With Goss Crystallographic Orientation of Silicon Steels František Kováč1, a, Ivan Petryshynets1, b, Jiří Buršík2, c, Martin Sopko1, d 1Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 04 001 Košice, Slovakia 2Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Zizkova 22, 616 62 Brno, Czech Republic afkovac@imr.saske.sk, bipetryshynets@imr.saske.sk, cbursik@ipm.cz, dmsopko@imr.saske.sk, Keywords: Grain – oriented steels, abnormal grains, Goss texture, nano – inhibitors.
As one can see, the obtained sizes of the second phase particles in the investigated materials are quite different.
As stated above, these materials were annealed at different temperature in the range 850ºC - 1125ºC.
Further increase of the annealing temperatures up to 1000ºC leads to initiation of AGG in the present materials.
The coarse–grained microstructure was obtained in both materials after annealing at 1025ºC in dry hydrogen atmosphere.

Currently, active research is being conducted on the scattering of ions from the surface of single and multi-component materials [5–9], as well as oxide materials.
Bauer, Surface Science Reports, 62 (2007) 63-109. https://doi.org/10.1016/j.surfrep.2006.12.002 [2] D.R.
Kuryozov et al., Materials Science Forum, 1049 (2022) 192-197
Los, Surface Science, 184 (1987) 305-318. https://doi.org/10.1016/S0039-6028(87)80359-X [10] U.
Karimov, Journal of Physics: Conference Series, 2388 (2022) 012092

A high-performance color charge-coupled device camera captures color from wood samples and transmits images to the computer, then Hue from Munsell color system (HSI) and color vector angle (CVA) are used to characterize wood color of samples for the comparative purpose.These eigenvalues build two training sets,using support vector machine to establish the color classifiers,and test each classifier.The experimental results show that, the classification method based on the CVA and support vector machine can quickly and accurately estimate the level of the color of the wood materials, improve the level of automation and production efficiency in the wood processing.
Acknowledgements This work Supported by Zhejiang Provincial Natural Science Foundation of China (LY12F03008) and Huzhou Manufacturing Information Major Special Project (2011ZD2009).
References [1] Yeqin WANG,in: volume 30 of Forestry Science and Technology, chapter,2(2005), In Chinese
[5] Zhong-hong XIE, Xiao-qing GUO,and Chang-ying JI,in: volume 32 of Computer Engineering & Science(2010), In Chinese
[6] Oestreich J M, Tolley W K in: volume 8 of Minerals Engineering, chapter,1(1995) [7] Hong-wei ZHANG, Zhi-huan SONG,in: volume 45 of Journal of Shanghai Jiaotong University,chapter 8(2011), In Chinese

Alignment of HAp crystal using a Sample Rotation in a Static Magnetic Field IWAI Kazuhiko 1,a , AKIYAMA Jun 1,b , TANASE Tomohiko1,c and ASAI Shigeo 1,d 1 Dept. of Materials, Physics and Energy Engineering Nagoya University 464-8603, Furo-cho, Chikusa-ku, Nagoya, JAPAN a d42859a@cc.nagoya-u.ac.jp, bh052101d@mbox.nagoya-u.ac.jp, ch052135m@mbox.nagoya-u.ac.jp, d asai@numse.nagoya-u.ac.jp Keywords: hydroxyapatite, magnetic field, crystal alignment Abstract.
On the other hand, the development of super conducting magnet technology enables to introduce a high magnetic field which can control crystal orientation of non-magnetic materials with magnetic anisotropy.
HAp is also a useful material for adsorbent in liquid chromatography because of its high sorbability of proteins.
Therefore, the aligned crystals of HAp in the particular direction are useful as a functional material.
Principle of Crystal Alignment by using a Magnetic Field In the field of materials science and technology, it has been found that a high magnetic field has a function to control crystal alignment of not only magnetic materials, but also non-magnetic materials[7-11].

FEM software defined optional non-linear materials for the truss element.
N N502 266237 awarded by the Polish Ministry of Science and Higher Education.
Prebil, Numerical determination of carrying capacity of large rolling bearings, Journal of Materials Processing Technology, 155–156 (2004) 1696–1703
Rusinski, Superelement-Based Modeling of Load Distribution in Large-Size Slewing Bearings, Journal of Mechanical Design, 129, (2007), 4: 459-463
Ghosn, 3D simplified finite elements analysis of load and contact angle in a slewing ball bearing, Journal of Mechanical Design, 130 (2008) 8: 082601 (8 pages)

The tendency of the skin to hurt/injure when in contact with hot surfaces depends on the material and surface temperature and duration of contact [13-18, 32].
Pinnangudi, Experimental Characterization of Burn Hazards, Electrical Engineering & Computer Science Vol. 3 (2015)
Halfdanarson, The role of contact resistance in skin burns, Journal of biomedical engineering, vol. 4, no. 2 (1982) 97-102
Zhukov, Modeling and thermal calculation of a pipeline insulation system vol. 164: EDP Sciences (2020) 14021
Sarica, Thermal methods in flow assurance: A review, Journal of Natural Gas Science and Engineering, vol. 88 (2021) 103798

To understand and predict the behavior of plaster and gypsum during a fire, it is necessary to know the properties of the materials that determine the member's behavior at different temperatures.
The difference observed with previous researchers is the study of the structural behavior without using materials that prevent or reduce heat from reaching the concrete surface when the concrete structure is exposed to fire.
Association of Arab Universities Journal of Engineering Sciences, 25(3), pp.49-68
Journal of Engineering and Development, 18(5), pp.61-91
Standard test methods for fire tests of building construction and materials.

Based on microstructures that can be produced by alloying, titanium alloys are grouped as a, a-b and b alloys. a titanium and a-b alloys have been used for dental and orthopedic purposes as shown in Figure1. b titanium alloys are being considered as candidate materials for implant applications because of their ease of formability, increased strength and lower elastic modulus, in spite of increased cost.
Babu: Effects of Various Parameters on CNMG Turning Insert in Machining Ti-6Al-4V Alloy, International Journal of Engineering & Technology innovations, Vol. 1 issue 2, (May 2104), pp. 1-5 [2] Ananda Kumar Eriki, K.
Varaprasad: Machinability Improvement in Turning of Titanium Alloy (gr2) using Cubic Boron Nitride (cBN) Cutting Tool, Applied Mechanics and Materials, Vol.564 (2014) pp 507-512, (Trans Tech Publications, Switzerland 2014)
L. and A.K.M Nural A: The Performance of Uncoated Tungsten Carbide Insert in End Milling Titanium Alloy Ti-6Al 4V through Work Piece Preheating, American J. of Engineering and Applied Sciences 2(1): 147-153, (2009)
Murugan: The novel bondless wheel, spherical glass chips and a new method of aspheric generation, Journal of Materials Processing Technology, 167, 184-190, (2005)