Laser percussive strengthening of the aluminum alloys

• Autorzy: Napadłek W.
• Języki publikacji: EN

Abstrakty

EN

The matter of laser percussive strengthening by shock wave generated from laser pulse (LSP - Laser Shock Peening or LPS - Laser Percussive Strengthening) is presented. The building of the investigative position to making the quick photo of the laser influence with the subject was described. The idea of the registration of fast changing physical processes kinetics setting near the influence of short laser impulses with the aluminum alloys (ENAW-2017A and ENAW-2618A) was introduced. Variants were applied for enlargement of the process efficiency of laser strengthening in laboratory experiments from thin absorbing coat and inert layer (water). The tests results of the surface layer strengthening of ENAW-2017A and ENAW-2618A aluminum alloys are described. Those investigations enclose selection of strengthening parameters above named materials, measurement of: the surface topography, microstructure, micro-hardness and also fatigue investigations in restricted range for sigma =180 i 350 MPa. It was confirmed essential influence of surface topography as well as created subsoil microstructure on the fatigue life of strengthening samples. Obtained research results were confirmed very beneficial influence of used surface strengthening processing on the fatigue life.

Słowa kluczowe

EN

laser radiation; aluminum alloys; laser percussive strengthening

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 1
• Strony: 373--383
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Napadłek W.

• Military University of Technology, Faculty of Mechanical Engineering Institute of Motor Vehicles and Transportation Gen. S. Kaliskiego Street 2, 00-908 Warsaw, Poland tel.: [phone],

Bibliografia

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