Realising equal-strength welding with good conductivity in Cu–Cr–Zr alloy via friction stir welding

Model research tests of plastic deformation, fragmentation and flow of aluminum alloy material of Al-Mg-Sc-Zr system under high loaded friction in pair with a steel counterbody of a complex shape and comparison of the obtained result with the structure formed by friction stir welding have been carried out. The conducted studies show that the structure formed by extrusion of the material from the friction zone and its compaction in the channel of the counterbody is, in general, close in structure to the structure formed by friction stir welding of similar material. The distinguishing features of the structure formed in the model experiments on friction include the introduction into the stirring zone of material with deformed large-crystal structure, increased grain size of the stirring zone, the presence of defects and differences in the geometry of the stirring zone.

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On Friction Stir Welding of Mg-Zn-RE-Zr Alloy Using Threaded Tools for Aerospace Application

Friction Stir Welding and Processing VII ◽

10.1007/978-3-319-48108-1_24 ◽

2013 ◽

pp. 237-244

Author(s):

S. P. Madavan ◽

Manas Mohan Mahapatra ◽

Pradeep Kumar

Keyword(s):

Friction Stir Welding ◽

Friction Stir ◽

Aerospace Application ◽

Zr Alloy

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Friction-stir welding of an Al–Mg–Sc–Zr alloy in as-fabricated and work-hardened conditions

Materials Science and Engineering A ◽

10.1016/j.msea.2014.02.018 ◽

2014 ◽

Vol 600 ◽

pp. 159-170 ◽

Cited By ~ 37

Author(s):

S. Malopheyev ◽

V. Kulitskiy ◽

S. Mironov ◽

D. Zhemchuzhnikova ◽

R. Kaibyshev

Keyword(s):

Friction Stir Welding ◽

Friction Stir ◽

Zr Alloy

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Improved Recrystallization Resistance and Welding Properties of Cold-Rolled Al-Mg Alloy Sheets by Microalloying with Sc and Zr

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1035.17 ◽

2021 ◽

Vol 1035 ◽

pp. 17-24

Author(s):

Hao Wu ◽

Zhi Kai Zheng ◽

Si Meng Ren ◽

Shu Lei Li ◽

Hu Wang ◽

...

Keyword(s):

Friction Stir Welding ◽

Welded Joints ◽

Alloy Sheet ◽

Mg Alloy ◽

Softening Effect ◽

Welding Temperature ◽

Friction Stir ◽

Alloy Increase ◽

Welding Properties ◽

Zr Alloy

The effects of Sc and Zr element on the recrystallization behavior and microstructure evolution of Al-Mg alloy had been researched in this paper, and meanwhile, the microstructure and mechanical properties of the friction stir welding joints were also analyzed. The results show that the recrystallization and grain growth behavior of Al-Mg-Sc-Zr alloy can be inhibited effectively by microalloying with Sc and Zr. Compared with Al-Mg and Al-Mg-Zr alloys, the recrystallization start temperature and finish temperature of Al-Mg-Sc-Zr alloy increase significantly, and the strength of alloy sheet which subjected to stabilizing annealing is increased by more than 50MPa. Moreover, the recrystallization softening effect of the welded joints microstructure, which caused by the welding temperature field and welding heat input, can be weaken by microalloying with Sc and Zr, the width of recrystallization zone is reduced, the microstructure and properties of the welded joints are improved. The friction stir welding coefficients of Al-Mg-Sc-Zr alloy increases to 86.9%.

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Friction-stir welding of ultra-fine grained sheets of Al–Mg–Sc–Zr alloy

Materials Science and Engineering A ◽

10.1016/j.msea.2014.11.079 ◽

2015 ◽

Vol 624 ◽

pp. 132-139 ◽

Cited By ~ 21

Author(s):

S. Malopheyev ◽

S. Mironov ◽

V. Kulitskiy ◽

R. Kaibyshev

Keyword(s):

Friction Stir Welding ◽

Friction Stir ◽

Fine Grained ◽

Zr Alloy

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Quantitative wear analysis of H13 steel tool during friction stir welding of Cu-0.8%Cr-0.1%Zr alloy

Wear ◽

10.1016/j.wear.2017.02.009 ◽

2017 ◽

Vol 378-379 ◽

pp. 82-89 ◽

Cited By ~ 22

Author(s):

Pankaj Sahlot ◽

Kaushal Jha ◽

G.K. Dey ◽

Amit Arora

Keyword(s):

Friction Stir Welding ◽

H13 Steel ◽

Friction Stir ◽

Steel Tool ◽

Wear Analysis ◽

Zr Alloy

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Microstructure and Mechanical Properties of Cu-Cr-Zr Alloy by Friction Stir Welding

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.602-604.608 ◽

2012 ◽

Vol 602-604 ◽

pp. 608-611

Author(s):

Di Qiu He ◽

Rui Lin Lai ◽

Shao Hua Xu ◽

Kun Yu Yang ◽

Shao Yong Ye ◽

...

Keyword(s):

Mechanical Properties ◽

Friction Stir Welding ◽

Rotation Speed ◽

Base Material ◽

Traverse Speed ◽

Nugget Zone ◽

Alloy Plate ◽

Friction Stir ◽

Microstructure And Mechanical Properties ◽

Zr Alloy

In this study, Cu-Cr-Zr alloy joints are successfully fabricated by friction stir welding (FSW). Defect-free weld are produced on 12mm thick Cu-Cr-Zr alloy plate useing a non-consumable tool with a specially designed and shoulder with a constant rotation speed and a fixed traverse speed. The effect of friction stir welding (FSW) on the microstructure and mechanical properties of Cu-Cr-Zr alloy joints are investigated in details: The joints showed the presence of various zones such as nugget zone (NZ) and thermo-mechanically affected zone (TMAZ) and base metal (BM), the microhardness and the tensile strength of welded joints are lower than that of the base material.

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