Registration Number
0219U004268,
0115U001553
, R & D reports
Title
Development and expansion of high-vacuum technologies for creating new nanostructured magnesium alloys with improved characteristics
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Head
Papirov Igor Isakovich,
Registration Date
22-04-2019
Organization
National Science Center "Kharkiv Institute of Physics & Technology"
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We determined the mechanical properties of the WE43 magnesium alloy at room temperature depending on the grain size and strain rate, studied in detail the acoustic emission in the process of deformation of samples depending on the grain size, size and strain rate. The effect of decreasing AE activity as the grains are crushed is found, which is associated with a sharp decrease in the amplitude of AE signals to values below the background, which is especially pronounced in ultrafine-grained samples. Acoustic studies of the deformed WE43 alloy have confirmed that due to the increased diffusion mobility in a stressed material with a lower melting point, exposure at room temperature is accompanied by strong relaxation processes leading to a radical change in such a structurally dependent quantity as the sound attenuation rate. The dependence of the corrosion rate of wires from the alloy WE43 in a physiological solution on the grain size at 36-37 ° C has been studied. Two effects have been revealed: a noticeable decrease in the corrosion rate and its homogeneity as the grain is refined in the region of 35-1.5 ?m. Based on the data obtained, it can be concluded that the corrosion rate of ultrafine-grained magnesium alloy in the body will be 0.1-0.3 ?m / day.
Product Description
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Ємлянінова Т.Г.
Єфімов О.А.
Биковський А.І.
Булатов О.С.
Кисляк І.Ф.
Клочко В.І.
Ковтеба О.Г.
Ковтун Г.П.
Колодій І.В.
Кондратов О.О.
Корнієць А.В
Кутній К.В.
Ляшенко О.А..
Мазін О.І.
Пікалов А.І.
Панов В.А.
Сівцов С.В.
Солопіхін Д.А.
Стоєв П.І.
Тихоновська Т.М.
Тихоновський М.А.
Шокуров А.В.
Шокуров В.С.
Щербань О.П.
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2020-04-02
