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Information × Registration Number 0224U032967, (0124U003010) , R & D reports Title Innovative family of AlMg6Si2Mn casting alloys for transportation applications popup.stage_title Розробка хімічних складів новітніх ливарних сплавів Al-Mg-Si-Mn-(Sc+Zr) Head Yefimov Mykola O., к.ф.-м.н. Registration Date 12-12-2024 Organization Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine popup.description1 Identification of the most effective strengthening mechanism that gives the novel Al-Mg-Si alloys suitable for producing shaped castings high mechanical properties, as well as mechanisms for the formation of strengthening phases during natural aging directly in the as-cast state. popup.description2 Object of study - casting alloys of the Al-Mg-Si-Mn + (Sc-Zr) system. The aim of the study is to identify the most effective strengthening mechanism that gives the newest Al-Mg-Si alloys suitable for producing molded castings, high mechanical properties, as well as mechanisms of formation of strengthening phases during natural aging directly in the cast state. The research methods - optical and electron microscopy, mechanical and micromechanical tests at room and elevated temperatures. A literature review of aluminum alloys was carried out, during which the prospects for the development of eutectic (Al + Mg2Si) alloys based on the ternary Al-Mg-Si system were determined. In order to obtain improved mechanical properties of the eutectic composite of the ternary Al-Si-Mg system, the use of the "Sc-effect" was proposed to realize the dispersion hardening mechanism. The optimum ratio and amount of additional alloying elements in the complex (Sc+Zr) and the heat treatment regimes for realizing the mechanism of dispersion hardening of alloys with Al3(Sc1-xZrx) particles were determined. For this purpose, the samples were aged at 200, 300, and 400 C with a holding time of 1-20 h. The following mode of heat treatment of alloyed alloys was chosen: aging at 300 C for 5. Product Description popup.authors Yefimov Mykola O. Voskoboinik Ihor V. Dudka Stanislav Yu. Poperenko Tetiana V. popup.nrat_date 2024-12-12 Close