Effect of an anodizing pre-treatment on AA 5052 alloy/polypropylene joining by friction stir spot welding

被引：24
作者：
Allasghari, S. [1 ,3 ]
Skeldon, P. [2 ]
Zhou, X. [2 ]
Hashimoto, T. [2 ]
机构：
[1] STFC Daresbury Lab, ASTeC, Warrington WA4 4AD, Cheshire, England
[2] Univ Manchester, Sch Mat, Corros & Protect Grp, Oxford Rd, Manchester M13 9PL, Lancs, England
[3] Sharif Univ Technol, Dept Mat Sci & Engn, POB 11365-9466,Azadi Ave, Tehran 14588, Iran
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2019年 / 245卷
基金：
欧盟地平线“2020”;
关键词：
Aluminium alloy; Polypropylene; Friction stir spot welding; Anodizing; Plasma electrolytic oxidation; THERMAL-DECOMPOSITION PRODUCTS; ALUMINUM-ALLOY; COMPOSITE; FAILURE; JOINTS; MICROSTRUCTURE; POLYPROPYLENE; FILM;
D O I：
10.1016/j.mseb.2019.05.018
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A study has been carried out of the effect of an anodizing pre-treatment in a sulphuric acid electrolyte on the strength of AA 5052 alloy/polypropylene joints prepared using friction stir spot welding. Lap-shear tests were used to determine the joint strength. Comparisons were made with joints pre-treated using sand blasting. The failed specimens were examined by scanning and transmission electron microscopy. Anodizing improved the strength of the joints by a factor of about 6 compared with sandblasting. For the anodizing pre-treated joints, melted polymer infiltrated deeply within the nanoporous anodic film, forming a strong polymer-film bond. Joint failure occurred by ductile tearing of the polymer at or near the film surface. In contrast, sandblasted joints failed at the alloy/polymer interface.
引用
收藏
页码：107 / 112
页数：6
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