首页|Evaluation of capabilities of ultrasonic energy on failure load and corrosion resistance of friction stir lap welded Al-steel joints
Evaluation of capabilities of ultrasonic energy on failure load and corrosion resistance of friction stir lap welded Al-steel joints
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
The lap joints of 6061-T6 aluminum alloy/Q235 steel were prepared by conventional friction stir welding and ultrasonic vibration enhanced friction stir welding.Firstly,the effect of ultrasonic vibration on the microstructure and properties of joints was analyzed,and then the optimization mechanism of ultrasonic vibration on failure load and corrosion resistance of joints was elucidated.The results indicated that ultrasonic vibration could significantly improve the quality of weld formation,expand the width of interface zone,change the shape of the''hook''structure,form a macro mechanical interlock at the joint interface,and effectively refine the grain structure on the steel side.In terms of the microstructure of the joints,additional ultrasonic energy can change the microstructure characteristics at the interface,and can improve the distribution characteristics of precipitates in the weld nugget zone,significantly reducing the number of intermetallic compounds generated across the interface of the retreating side and forming micro mechanical interlock on the advancing side of the interface.After ultrasonic treatment,the failure load of the aluminum/steel lap joint increased by 20.4%,and the corrosion resistance improved by 1.304 times.
Tao Liu、Song Gao、Lei Shi、Sachin Kumar、Zhi-ping Sun、Wei Zhao、Hui Zhang、Ning Guo
展开 >
School of Mechanical Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250300,Shandong,China
Shandong Institute of Mechanical Design and Research,Jinan 250300,Shandong,China
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(MOE),Shandong University,Jinan 250061,Shandong,China
Department of Mechanical Engineering,Indian Institute of Information Technology Design and Manufacturing(IIITDM),Jabalpur,Madhya Pradesh 482005,India
展开 >
National Natural Science Foundation of ChinaNatural Science Foundation of Shandong ProvinceProgram for the Integration between Industry and Education of Qilu University of Technology(Shandong Academy of Sciences)Youth Innovation Team Program of Universities in Shandong Province
NETL
NSTL
万方数据
