On the Microstructural and Mechanical Characterization of Hybrid Laser-Welded Al-Zn-Mg-Cu Alloys

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	On the Microstructural and Mechanical Characterization of Hybrid Laser-Welded Al-Zn-Mg-Cu Alloys
	Wu, SC; Hu, YN; Song, XP; Xue, YL; Peng, JF
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2015
卷号	24 期号:4 页码:1540—1550
关键词	FRICTION STIR WELDS ALUMINUM-ALLOYS COPPER ADDITION FATIGUE-CRACK PHASE ZONES STEEL STRENGTH BEHAVIOR FUSION
英文摘要	Butt-welded 2-mm-thick high-strength aluminum alloys have been welded using a hybrid fiber laser and pulsed arc heat source system with the ER5356 filler. The microstructure, size of precipitates, texture, grain size and shape, change of strengthening elements, mechanical properties, and surface-based fatigue fracture characteristics of hybrid-welded joints were investigated in detail. The results indicate that the hybrid welds and the unaffected base materials have the lowest and largest hardness values, respectively, compared with the heat-affected zone. It is resonably believed that the elemental loss, coarse grains, and changed precipitates synthetically produce the low hardness and tensile strengths of hybrid welds. Meanwhile, the weaker grain boundary inside welds appears to initiate a microcrack. Besides, there exists an interaction of fatigue cracks and gas pores and microstructures.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24514]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Wu, SC,Hu, YN,Song, XP,et al. On the Microstructural and Mechanical Characterization of Hybrid Laser-Welded Al-Zn-Mg-Cu Alloys[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2015,24(4):1540—1550.
APA	Wu, SC,Hu, YN,Song, XP,Xue, YL,&Peng, JF.(2015).On the Microstructural and Mechanical Characterization of Hybrid Laser-Welded Al-Zn-Mg-Cu Alloys.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,24(4),1540—1550.
MLA	Wu, SC,et al."On the Microstructural and Mechanical Characterization of Hybrid Laser-Welded Al-Zn-Mg-Cu Alloys".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 24.4(2015):1540—1550.