Cause Analysis of 6013 Aluminium Alloy Surface Line Pattern and Colour Difference
By analyzing the chemical composition,Vickers hardness,metallographic structure,SEM morphology and EDS composition of 6013 aluminium alloy,the causes of surface line pattern and colour difference defects were investigated.The results show that the line pattern is mainly strip defects formed by extrusion and stretching of Fe-containing compounds and aluminium,titanium and bo-ron refiners.And the colour difference is mainly caused by the difference of Si,Mn and Mg elements in the products and heat treat-ment process.Therefore,in the actual production,attention should be paid to the control of raw material Fe element,the reasonable use of refiners and the selection of appropriate heat treatment process,which can further optimize the surface quality of products and ensure the stability of product surface quality.
6013 aluminium alloyanalysis of surface defectsline patterncolour difference
NETL
NSTL
万方数据
