中國有色金屬學報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 24 No. 2 February 2014 |
（1. College of Mechanical Electronical and Engineering, North China University of Technology, Beijing 100144, China;
2. China Academy of Engineering Physics, Mianyang 621900, China;
3. School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China）
Abstract:Scanning electron microscopy and X-ray energy dispersive spectrum analysis show that the clusters of intermetallic AlFeSi particle are distributed on or near the aluminum foil stock surfaces heterogeneously. 3D finite element modeling shows that these clusters of hard particles induce the fracture of the nano-scale lubricant oil film at first and further lead to severe deformation in the nearby aluminum foil substrate along the rolling direction. Consequently, the optical property in this region differs from that in the surroundings, resulting in surface defects.
Key words: Al-Fe-Si alloy; precipitated phase; aluminum foils; lubricant oil film; twin-roll cast; 3D modeling
