电子束辐照过程中LPSO相结构变化

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中图分类号：TG146.22 文献标志码：A 文章编号：2095-2945（2025）28-0074-04

Abstract：TheLPSO phase cansubstantiallyimprove themechanicalpropertiesofallys.Inthispaper，thestructural evolutionoftheLPSOphaseunderelectronbeamirradiatonisivestigtedinsituusingsphericalaberrtion-correcedscaning transmissionelectronmicroscopyThereisastructuralamorphoustransitionandatomicreconstructionduringthetransformation process.Withtheincreaseof thenumberof blocks，theLPSOphaseshowsselectivestructural transformation.Inadition，the potentialmechanismofthestructuraltransformationoftheLPSOphaseinducedbyelectronbeamirradiationwasexplored.This study provides a new way to modulate the structure and properties of Mg-M-RE alloys.

Keywords： LPSO phase;Mg alloy;electron beam irradiation; structural transformation； stacking fault

在节能减排的趋势下，镁合金因其具有低密度、高比强度等特点而被认为在汽车制造、航空航天等方面具有广泛的应用前景。（剩余5124字）