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Registration Number

0219U004444, 0118U005220 , R & D reports

Title

Research of the influence of the pulse treatment of aluminum melt of Al-Zn-Mg-Cu system on mechanical properties (tensile strength and elongation) in a solid state

Head

Tsurkin Volodymyr Mykolayovych,

Registration Date

05-08-2019

Organization

Institute of Pulse Research and Engineering

Description

Object of studies - the structure and properties of В95пч (Ukrainian analogue of 7075 alloy). The goal of studies - to study the impact of pulse treatment of melt of aluminum alloy of Al-Zn-Mg-Cu system on the mechanical properties (ultimate tensile strength, relative elongation) in solid state. Method of studies - physical experiment. The following methods of treatment were used: reagent, energetic (electro hydro pulsed, by pulsed current, by pulse current), complex (reagent + energetic). It is shown, that complex treatment of melt increases crystallization ability of melt. The best results were obtained after treatment by pulse electric current with the density of total energy around 2.108 J/m3. In this case the value of ultimate tensile strength has increased 3.8 times if compared to untreated specimen. Pulse treatment both individual and combined with reagent provides more homogeneous structure of alpha phase. Eutectic colonies become thinner and have virtually no sharp twists, which are characteristic to untreated alloy. Results, obtained during studies, have shown the prospects and innovative attractiveness of pulse methods of Al-Zn-Mg-Cu system alloys treatment5481

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Іванов А.В.
Гумененко М.К.
Дьогтєв Ю.Н.
Жданов О.О.
Зайченко А.Д.
Харитонова Т.Г.
Цуркін В.М.
Чесних М.В.