Research progress and applications of conductive aluminum alloys used in transportation
With the rapid development of the economy and society,the construction of urban rail tran-sits,and the gradual popularization of electric vehicles and new energy transportation vehicles,the ap-plication of aluminum alloy conductors in the power transmission and transportation equipments opera-tion is increasing year by year.Due to their inherent resistance,however,aluminum alloy wires still have a significant degree of energy loss during the power transmission.How to improve conductivity while ensuring the strength of aluminum alloy conductor materials has been a long-term challenge in re-search.Based on the current development and main research progress,this review paper explores the strength-conductivity constraint relationship of aluminum alloy conductor materials.It summarizes the present research progress in synergistic improvement of strength and conductivity,as well as the prepa-ration of high strength and high conductivity aluminum alloys.Several main improvement methods and techniques are demonstrated,that is,microalloying design,optimization of heat treatment process,se-vere plastic deformation,aluminum matrix composites,melt purification treatment,introduction of slender grains,and so on.Finally,future prospects for high strength and high conductivity aluminum alloys are addressed.
NETL
NSTL
万方数据
维普
