Application of the nanosecond pulses in scientific researches

Балакирев, В. Ф.; Krymsky, V.V.; Gak, E.S.

doi:10.1109/uwbus.2004.1388046

Cited by 1 publication

(2 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increase of the content of the main alloying elements at the primary α-phase under the ultrasonic influence is mentioned in [ 14 ]. Increased strength and ductility of the material under ultrasonic treatment at 600 W and 19.5 kHz frequency, despite continued presence of coarse needle-shaped eutectic is mentioned in [ 2 ]. In the papers mentioned above a simultaneous increase in ultimate strength and elongation is observed alongside the grain size reduction and eutectic.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Applying of Pulsed Electromagnetic Processing of Melts in Laboratory and Industrial Conditions

Krymsky

Shaburova

2018

Materials

View full text Add to dashboard Cite

The use of various external influences to influence metal melts (vibration, ultrasound, etc.) is a known method of changing the structure and properties of metals and alloys. In the overwhelming majority, all methods of external action on melts cause grinding of the metal structure, which leads to an increase in strength characteristics. The paper considers a new method of external physical action on molten metal, namely, electromagnetic pulses. Work on the investigation of the impulse effect on metal melts is conducted in two laboratories: in Chelyabinsk (the laboratory of Professor Krymsky V.V.) and in Khabarovsk (in the laboratory of Ri Josen). If at the beginning only small masses of metal were processed in the laboratory, now the work is at the industrial level. Masses of processed metal reach 2 tons. The article summarizes and structures the results of the conducted studies on the effect on nonferrous metal melts with powerful electromagnetic pulses. General regularities of such influence on the structure and properties of the metal are established. The results of such effects on pure metals (aluminum, zinc) and on aluminum alloys are provided. It is established that impulse processing contributes to a decrease in the porosity of castings, an increase in metal density, and a decrease in electrical resistivity. Also, in pulsed processing, a grinding of the metal grains occurs, an increase in the solubility of the main components in the alpha phase, and changes for the eutectic in the structure. An interesting fact is the simultaneous increase in the properties of the strength and plasticity of the metal.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Krymskii. He first proposed the use of powerful nanosecond electromagnetic pulses (NEMP) for metal melts [ 1 , 2 ]. Znamensky L.G.…”

Section: Introductionmentioning

confidence: 99%