The influence of addition content of La on mechanics performance of AZ91 magnesium alloy
LIU Jian-xiu
LIU Xiao-hong
ZHOU Ya-jun
ZHENG Yu
Abstract：In order to improve the comprehensive mechanics performance of AZ9 1 magnesium alloy which was used as car’s material,metal La was added in AZ9 1 magnesium alloy,and specimens were prepared by powder metallurgy method.The influence of La on microstructure,hardness and compression performance of AZ91 magnesium alloy specimens was studied using metallographic electronic microscope,hardness tester,u-niversal tension and compression testing machine.The experimental results showed that when the addition a-mount of La was 1.2%,the specimens’mechanical performance was best:hardness 67.1 HV,compressive strength 115.8 MPa,which increased respectively by 20.0%and 29.5%compared with the AZ91 magnesi-um alloy substrate,and the grain refinement effect of AZ91 magnesium alloy was the best at the same time.
Keywords：powder metallurgyAZ9 1 magnesium alloyaddition Lahardnesscompressive strengthme-chanics performance
Publication Date：2014-03-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 8-10 )