CAS OpenIR  > 中科院上海应用物理研究所2011-2019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
2015
Source PublicationJOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
Volume24Issue:4Pages:1540—1550
Subtype期刊文献
AbstractButt-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.
KeywordFriction Stir Welds Aluminum-alloys Copper Addition Fatigue-crack Phase Zones Steel Strength Behavior Fusion
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24514
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
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.
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