Characteristics and distribution of microstructures in high pressure die cast alloys with X-ray microtomography:A review  

作　　者：Hai-dong Zhao Xue-ling Wang Qian Wan Wen-hui Bai Fei Liu 

机构地区：[1]School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China

出　　处：《China Foundry》2024年第5期427-444,共18页中国铸造（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.51875211 and 51375171);Beijing Natural Science Foundation(No.L223001);Natural Science Foundation of Guangdong Province(No.2023A1515012730);the Program for New Century Excellent Talents in University in China(No.NCET-08-0209).

摘　　要：Al and Mg alloy high pressure die castings(HPDC)are increasingly used in automotive industries.The microstructures in the castings have decisive effect on the casting mechanical properties,in which the microstructure characteristics are fundamental for the investigation of the microstructure-property relation.During the past decade,the microstructure characteristics of HPDC Al and Mg alloys,especially micro-pores andα-Fe,have been investigated from two-dimensional(2D)to threedimensional with X-ray micro-computed tomography(μ-CT).This paper provides an overview of the current understanding regarding the 3D characteristics and formation mechanisms of microstructures in HPDC alloys,their spatial distributions,and the impact on mechanical properties.Additionally,it outlines future research directions for the formation and control of heterogeneous microstructures in HPDC alloys.

关 键 词：high pressure die casting microstructure three-dimensional characteristics DISTRIBUTION Al and Mg alloys 

分 类 号：TG146.21[一般工业技术—材料科学与工程]