Forming Processes of Modern Metallic Materials

doi:10.3390/books978-3-03943-157-1

Cited by 1 publication

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“…Modern materials must combine high properties and qualities to ensure that the necessary service life and reliability of the products of aerospace technology, shipbuilding, mechanical engineering, nuclear energy, radio engineering and computer technology and construction [1][2][3][4][5][6]. Due with this, the production and use of pure aluminum is of particular importance and its alloys, which have high mechanical strength and ductility, low density, high corrosion and heat resistance, vacuum resistance and a number of other specific characteristics [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Size-Dependent Cooling Kinetics of A5N Cylindrical Samples

Nematov¹,

Turakhasanov²,

Nizomov³

2022

Preprint

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The results of the study of the influence of the size of cylindrical samples of A5N aluminum on the time and rate of their cooling are presented. According to experimental data, the temperature dependence of the heat transfer coefficient for pure metals is calculated. It revealed that the process of cooling of the aluminium and its alloys has a relaxation behavior. It has found that the main mechanisms of natural air cooling are convection heat transfer and radiation. The characteristic cooling time due to radiation is less than due to convection. The contribution of thermal radiation is noticeable at high temperatures. It was found that the characteristic times of cooling due to radiation and convection increase with increase in volume to area ratio of the sample.

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