THE INFLUENCE OF EXTERNAL FACTORS ON THE MECHANICAL PROPERTIES OF THE MATERIAL

Bozorov Nasirjon Sadikovich; Umurkulov Kayumjon Parpievich

Bozorov Nasirjon Sadikovich Candidate of sciences in physics and mathematics, Associate professor at the Kokan State Pedagogical Institute,
Umurkulov Kayumjon Parpievich Lecturer at the Kokan State Pedagogical Institute

Keywords: external factors, material properties, mechanical properties, temperature rise, various factors

Abstract

This article considers the influence of external factors on the mechanical properties of the material. The influence of various factors on the mechanical properties of materials. Experiments have established that with an increase in the loading rate and strain rate, the yield strength and tensile strength increase. With increasing temperature, creep is especially noticeable. At high temperatures, viscous (plastic) properties become more pronounced, while at lower temperatures, embrittlement is observed. The influence on the mechanical properties of metals of the chemical composition is significant. For example, small alloying additives (chromium, nickel, molybdenum, etc.) change the mechanical properties of steels and make it possible to create materials with high strengths.

References

1. Samoylenko V. M., Oleshko V. S. The use of the device for measuring the contact potential difference "Poverhnost-11" in non-destructive testing of machine parts // Interbranch scientific and technical journal "Defence complex - to scientific and technical progress". - 2019. - No. 3.
2. M. V. Musokhranov, V. V. Kalmykov, and S. P. Sorokin, “Energy indicators of the quality of machine parts and methods for measuring them,” Fundamental Research. – 2020.- No. 1.
3. G. V. Sharonov, A. L. Zharin, N. I. Muhurov, and K. V. Panteleev, “Control of metal surfaces processed by diamond nanoturning by the electron work function,” Pribory i metody izmereniya. 2019.
4. Zhou Y., Lu J. Q., Qin W. G. Change in the electronic work function under different loading conditions // Materials Chemistry and Physics. — 2021. Vol.11
5. Shiyi Liu, Hao Lu, Li D. Y. The relationship between the electron work function and friction behavior of passive alloys under different conditions// Applied surface science. 2020 Vol. 35.