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Information × Registration Number 0221U107013, 0117U000529 , R & D reports Title Scientific backgrounds of the production technology of new weldable alloy of Al-Mg-TM-REM system with increased resource properties at long-term exploitation popup.stage_title Head Ostash Orect P., Доктор технічних наук Registration Date 26-12-2021 Organization Physico-Mechanical Institute named after GV Karpenko of the National Academy of Sciences of Ukraine popup.description2  A new alloy Al-4,6Mg-0,45Cr-0,26Sc-0,12Zr-0,10La with structural, solid-soluble and dispersion hardening together with FTIMS NAS of Ukraine was developed. This alloy in the cast state prevails over the widely used high-strength alloy 1570 by 33% and 25% in terms of yield and ultimate strengths, respectively, and 62% in terms of corrosion current due to the replacement of manganese by chromium and microalloying with lanthanum, which leads to the cleaning of grain boundaries and enrichment of electrochemical potential. It is shown that after cold and the proposed hot rolling (at 360 oC) it is not inferior in strength and ductility to known alloys of the Al-Mg-Cr-Sc-Zr system (grades 1570 and 1545), but exceeds them in corrosion resistance and fatigue crack growth resistance characteristics , as well as 3.7 times the parameter of structural strength, which is comprehensively determined by the tensile strength, fatigue threshold and cyclic fracture toughness. Product Description popup.authors Holovatyuk Yuriy V Ostash Orest Petrovych Perehinetsʹ Volodymyr Р. Chepilʹ Roman Volodymyrovych popup.nrat_date 2022-03-09 Close