Interface Behavior and Impact Properties of Dissimilar Al/Steel Keyhole-Free FSSW Joints

doi:10.3390/met9060691

	Interface Behavior and Impact Properties of Dissimilar Al/Steel Keyhole-Free FSSW Joints
	Zhang, Zhongke1 ; Yu, Yang 2; Zhao, Huaxia 3; Wang, Xijing1
	2019-06
发表期刊	METALS
ISSN	2075-4701
卷号	9 期号:6
摘要	This work systematically investigates the interface behavior and impact properties of the keyhole-free friction stir spot welding (FSSW) of a dissimilar metal AA6082-T4 Al alloy and DP600 galvanized steel. The keyhole is eliminated by pin retraction technology. The welding process is in accordance with the welding temperature curve and the maximum temperature of the periphery of the shoulder, measured at about 500 degrees C. The transition layers were formed at the interface, in which the Al, Fe, and Zn elements form an inhomogeneous diffusion. A cloud cluster-like mechanical mixing of the Al and steel components is formed in the stirring zone. The impact toughness of the specimen with a welding parameter of 1000 rpm is the best. To a certain extent, the factors affecting the impact energy are not the maximum impact load but the maximum impact deformation. The maximum impact deformation directly reflects the post-crack propagation energy, which significantly affects its impact toughness. In addition, the impact fracture showed a mixed ductile and brittle fracture mode with a brittle-ductile transition zone. Most of the impact energy was absorbed by the ductile fracture.
关键词	FSSW dissimilar metals interface behavior impact properties
DOI	10.3390/met9060691
收录类别	SCI ; SCIE
语种	英语
资助项目	Major Science and Technology Project of Gansu Province[18ZD2GC013]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000475356500075
出版者	MDPI
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/31842
专题	材料科学与工程学院
通讯作者	Yu, Yang
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China; 2.Tongji Univ, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China; 3.AVIC Mfg Technol Inst AECC, Aeronaut Key Lab Welding & Joining Technol, Beijing 100024, Peoples R China
第一作者单位	材料科学与工程学院
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Zhang, Zhongke,Yu, Yang,Zhao, Huaxia,et al. Interface Behavior and Impact Properties of Dissimilar Al/Steel Keyhole-Free FSSW Joints[J]. METALS,2019,9(6).
APA	Zhang, Zhongke,Yu, Yang,Zhao, Huaxia,&Wang, Xijing.(2019).Interface Behavior and Impact Properties of Dissimilar Al/Steel Keyhole-Free FSSW Joints.METALS,9(6).
MLA	Zhang, Zhongke,et al."Interface Behavior and Impact Properties of Dissimilar Al/Steel Keyhole-Free FSSW Joints".METALS 9.6(2019).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Zhang-2019-Interface（8687KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载