Liquid metal embrittlement in the absence of liquid metal phase: in studies of surface damageability and in hard materials machining

摘要

The liquid metal embrittlement (LME) effect has been studied by a new approach, in the absence of the liquid metal phase. A melt was replaced by the ions of selected surface-active metals induced by electrochemical reduction on treated surface. New methods were elaborated based on this idea. Electrochemical microscratching method has been developed to study the stability and damageability of solid metal surfaces. Electro-chemo-mechanical treatment (ECMT) tests were performed to search for new ways in practical applications of the LME effect in optimizing processes of mechanical machining, friction.