Microstructures in interface region and mechanical behaviours of friction stir lap Al6060 to Ti–6Al–4V welds

Chen, Z.W.; Yazdanian, S.

doi:10.1016/j.msea.2015.03.017

Cited by 41 publications

(12 citation statements)

References 28 publications

(44 reference statements)

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“…Al 3 Ti was formed at the Ti/Al interface in the process of friction spot welding. Chen et al [ 216 ] achieved Al6060 Al alloy/TC4 Ti alloy lap by friction stir. The results showed that the effective joining can be formed when the bottom of the pin was close to and did not penetrate the Al6060/TC4 interface during the welding process.…”

Section: Friction Weldingmentioning

confidence: 99%

Research Progress on Control Strategy of Intermetallic Compounds in Welding Process of Heterogeneous Materials

Lü

Zhang

et al. 2021

steel research int.

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Since the beginning of the 21st century, countries around the world have continuously increased their efforts in environmental governance. It has higher requirements for the performance of materials, not only to ensure that it is clean and nonpolluting, but also to maximize benefits. The mechanical properties and economic value of a single material can no longer meet the production needs of enterprises. Therefore, more people use composite materials to replace single materials. The use of composite materials not only can effectively respond to the concept of green development, but also reduces cost input to a lager extent. The composite of dissimilar metals can volatilize the respective advantages of the two materials. Common materials can be used to replace rare metals to reduce the use of precious metals. [1][2][3][4] World-renowned automobile companies such as Japan's Toyota and Honda are vigorously researching lightweight production technologies. Lightweight alloys (such as magnesium [Mg] alloys, aluminum [Al] alloys, etc.) could be used in place of steel in non-load-bearing structures. Mg alloys are one of the lightest metal materials so far, with a density of only 1.74 g cm À3 , which is about 2/3 of Al, 1/4 of zinc, and 1/5 of steel. They have high specific strength, specific stiffness, good damping performance, and easy recycling and other advantages, known as the "21st century green engineering metal materials." Titanium (Ti) alloy is expensive and its processing performance is relatively poor. Steel has

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Section: Friction Weldingmentioning

confidence: 99%

Research Progress on Control Strategy of Intermetallic Compounds in Welding Process of Heterogeneous Materials

Lü

Zhang

et al. 2021

steel research int.

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“…Due to their natural brittleness, all these intermetallics typically promote cracking and, thus, lead to the premature failure of dissimilar weldments [ 6 , 10 , 12 , 17 , 22 , 23 , 24 , 25 , 26 ]. It is well-accepted that the mechanical performance of aluminum–titanium dissimilar welds is mainly governed by the thickness and spatial distribution (continuous or discontinuous) of intermetallic compounds, e.g., [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

“…In the lap-welding configuration, this is achieved by the placing of an aluminum plate on the upper part of the welding joint, so the welding tool is mainly plunged into the relatively soft material [ 2 , 3 ]. This simple approach reduces tool abrasion while also localizing the spatial distribution of titanium fragments in a relatively small area [ 1 , 3 , 10 , 22 ]. Moreover, the minimizing of the interaction between the welding tool and titanium lowers the FSW heat input [ 2 ] and, thus, shrinks the intermetallic layer [ 1 , 5 , 6 , 13 , 15 , 22 , 32 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

“…This simple approach reduces tool abrasion while also localizing the spatial distribution of titanium fragments in a relatively small area [ 1 , 3 , 10 , 22 ]. Moreover, the minimizing of the interaction between the welding tool and titanium lowers the FSW heat input [ 2 ] and, thus, shrinks the intermetallic layer [ 1 , 5 , 6 , 13 , 15 , 22 , 32 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

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Tailoring of Dissimilar Friction Stir Lap Welding of Aluminum and Titanium

et al. 2022

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An approach was proposed to optimize dissimilar friction stir lap welding of aluminum and titanium alloys. The basic concept of the new technique included (i) the plunging of the welding tool solely into the aluminum part (i.e., no direct contact with the titanium side) and (ii) the welding at a relatively high-heat input condition. It was shown that sound welds could be readily produced using an ordinary cost-effective tool, with no tool abrasion and no dispersion of harmful titanium fragments within the aluminum side. Moreover, the intermetallic layer was found to be as narrow as ~0.1 µm, thus giving rise to excellent bond strength between aluminum and titanium. On the other hand, several important shortcomings were also revealed. First of all, the high-heat input condition provided significant microstructural changes in the aluminum part, thereby resulting in essential material softening. Furthermore, the new approach was not feasible in the case of highly alloyed aluminum alloys due to the relatively low rate of self-diffusion in these materials. An essential issue was also a comparatively narrow processing window.

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“…Besides, the poor wettability between Al alloy and Ti alloy is also a problem that cannot be ignored, which seriously affects the forming of Al/Ti welded joint [7,8]. It is worth noting that a series of approaches including laser beam welding [9,10], friction stir welding [11][12][13], diffusion welding [14,15], brazing [16,17], explosive welding [18,19] and ultrasonic spot welding [20][21][22] have been attempted to join Al/Ti dissimilar alloys, which are limited by specific operational environment and joint configuration.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties and microstructure analysis of welding-brazing of Al/ti butt joint with Zn foil additive

Cheng

2020

Mater. Res. Express

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TIG welding-brazing features of 5052 Al alloy and Ti6Al4V alloy in butt configuration with Zn foil additive were studied with varying welding heat input. The joint morphology, mechanical performance, microstructure and joining mechanism were investigated in terms of experiment observation and analysis. Results reveal that the TIG welding-brazing process was successfully developed to join 5052 Al alloy and Ti6Al4V alloy. With low heat input, a mass of residual Zn and a thin TiAl 3 IMCs layer occurred in the fusion area and brazing area respectively. And with optimal heat input, both the homogeneous diffusion of Zn atoms and the formation of clubbed interfacial reaction layer were beneficial to enhance joint performance. The optimized Al/Ti joint with the maximum joining strength of 192MPa was obtained under the current of 90A. Fracture occurred in the weld seam zone adjacent to the interface of Al/Ti and the fracture morphology was characterized by typical dimples and tearing ridges.

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Microstructures in interface region and mechanical behaviours of friction stir lap Al6060 to Ti–6Al–4V welds

Cited by 41 publications

References 28 publications

Research Progress on Control Strategy of Intermetallic Compounds in Welding Process of Heterogeneous Materials

Research Progress on Control Strategy of Intermetallic Compounds in Welding Process of Heterogeneous Materials

Tailoring of Dissimilar Friction Stir Lap Welding of Aluminum and Titanium

Mechanical properties and microstructure analysis of welding-brazing of Al/ti butt joint with Zn foil additive

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