Study on the modification effect of al-sr master alloy on a356 aluminum alloy - Details

author：

Chen, Guiqing (Chen, Guiqing.) ^[1] | Fu, Gaosheng (Fu, Gaosheng.) ^[2] | Yang, Kaihuai (Yang, Kaihuai.) ^[3] | Lin, Chaosheng (Lin, Chaosheng.) ^[4]

Indexed by：

EI Scopus

Abstract：

A356　aluminum　alloy　was　modified　by　Al-Sr　master　alloy,　and　the　eutectic　silicon　phase　was　changed　from　long　needle　to　short　fiber.　Compared　with　the　untreated,　the　secondary　dendrite　spacing　decreased　by　14.37　%,　the　tensile　strength　increased　by　13.0　MPa,　and　the　elongation　increased　by　29.51　%.　After　modification　treatment,　more　developed　secondary　dendrites　and　block　inclusions　can　be　seen　in　the　tensile　fracture　of　A356　alloy,　which　is　not　conducive　to　the　plasticity　and　fatigue　resistance　of　the　alloy.　©　2020　Trans　Tech　Publications　Ltd,　Switzerland.

Keyword：

Aluminum alloys Binary alloys Strontium alloys Tensile strength

Community：

[ 1 ] [Chen, Guiqing]Department of Mechanical Engineering, Fujian Chuanzheng Communications College, Fuzhou; 350007, China
[ 2 ] [Fu, Gaosheng]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China
[ 3 ] [Yang, Kaihuai]Department of Mechanical Engineering, Fujian Chuanzheng Communications College, Fuzhou; 350007, China
[ 4 ] [Lin, Chaosheng]College of Materials Science and Engineering, Fuzhou University, Fuzhou; 350108, China