Microstructure and corrosion behavior of linear friction welded TA15 and TC17 dissimilar joint

Wang, Caimei; Guo, Qilong; Shao, Minghao; Zhang, Huanhuan; Wang, Feifan; Song, Biao; Ya-juan, JI; Li, Huaixue

doi:10.1016/j.matchar.2022.111871

Cited by 14 publications

(3 citation statements)

References 47 publications

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“…Specifically, considering a pressure-resistant hull of marine parts with bulged flanges, the flanges do not require as high a strength as the pressure-resistant hull because the pressures on either side of them are equivalent. Therefore, parts serving in the marine environment tend to require composite connections of dissimilar titanium alloys so as to achieve a property balance between the structures [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Study on the Welding Behavior in Dissimilar TC4-TA17 Titanium Alloys

Cao

et al. 2022

Materials

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Titanium alloys have become the material of choice for marine parts manufacturing due to their high specific strength and excellent resistance to seawater corrosion. However, it is still challenging for a single titanium alloy to meet the comprehensive specifications of a structural component. In this study, we have applied a molecular dynamics approach to simulate the aging phase transformation, K-TIG welding process, and mechanical properties of the TC4-TA17 (Ti6Al4V-Ti4Al2V) alloy. The results show that during the aging phase transformation process, changes in the structure of the titanium alloys are mainly manifested in the precipitation of a new phase from the sub-stable β-phase, and after the state stabilization, the α-phase content reaches 45%. Moreover, during the melting and diffusion process of TC4-TA17, aluminum atoms near the interface diffuse, followed by titanium atoms, while relatively few vanadium atoms are involved in the diffusion. Finally, the results of tensile simulations of the TC4-TA17 alloy after welding showed that stress values can reach up to 9.07 GPa and that the mechanical properties of the alloy in the weld zone are better than those of the single alloys under the same conditions. This study will provide theoretical support for the optimization of process parameters for TC4-TA17 alloy welding.

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Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Study on the Welding Behavior in Dissimilar TC4-TA17 Titanium Alloys

Cao

et al. 2022

Materials

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“…It was clearly observed that, when temperature increases gradually from 585 °C to 700 °C, the fracture morphology of welded zone transforms from intergranular fracture to ductile-brittle mixed fracture and dimple fracture with increasing fracture toughness. Caimei Wang et al [8] joined TA15 and TC17 titanium alloys using friction welding, studied the properties. The TC17 side welding zone (WZ) was composed of coarse β phases, α phase at grain boundaries and martensite α' phase at the grain interior, while the TA15 side WZ consisted of abundant acicular martensite α' phases and few retained β phases.…”

Section: Introductionmentioning

confidence: 99%

Investigation of friction welding parameters of AISI 304L/Ti-6AL-4V joints

Kumar

Babu

Saleh

et al. 2022

Mater. Res. Express

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The present paper focuses on evaluating the bonding strength interfaces between the contact materials such as AISI 304L and Ti-6Al-4V via friction welding (FW). Experimental tests are performed by considering the process parameters such as friction time, rotational speed and friction pressure, mechanical properties were evaluated. The rotational speed of 1800, 1600, 2100, 2300 and 2500 rpm were considered in the study. The response surface methodology (RSM) is used to predict the outcomes of the work. Experimental tests were revealed that the friction pressure of 160 MPa, 7 sec of friction time and speed of 2300rpm are the optimal parameters based on the joint strength. Also, observed that the aluminum interlayer thickness of 1.25 µm on the Ti-6Al-4V side and 1.38 µm on the AISI 304L side. The tensile strength of 143.39 MPa was noticed at the interface area. The RSM response generates the curved potential line frequency range with 6.5% elongations. Results confirm that, the response surface methodology outcomes and experimental values were in close agreement.

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“…This alloy has also been widely used in the key load-bearing components and engine structure parts of aerospace applications [1][2][3]. However, titanium alloy has high activity, low thermal conductivity, and high deformation resistance [4][5][6][7], which makes it very difficult to manufacture by traditional manufacturing methods, such as casting [8,9], forging [10,11], and welding [12][13][14]. In addition, aerospace parts tend to be functional, lightweight, and have a structural integrated design [15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Parameters in Laser Powder Bed Fusion TA15 Titanium Alloy Using Taguchi Method

Liu

Wang

et al. 2022

Crystals

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In this work, laser powder bed fusion (LPBF) was explored to fabricate TA15 (Ti-6Al-2Zr-1Mo-1V) titanium alloy based on the experimental design obtained by using the Taguchi method. The impact of processing parameters (including laser power, scanning speed, and scanning interval) on the density and microhardness of the as-LPBFed TA15 titanium alloy was analyzed using the Taguchi method and analysis of variance (ANOVA). The interaction among parameters on the density of the as-LPBFed TA15 titanium alloy was indicated by a response surface graph (RSR). When the laser energy density was adjusted to 100 J/mm3, the highest relative density could reach 99.7%. The further increase in the energy input led to the reduction in relative density, due to the formation of tiny holes caused by the vaporization of material at a high absorption of heat. Furthermore, in order to better reveal the correlation between relative density and processing parameters, the regression analysis was carried out for relative density. The results showed that the experimental and predicted values obtained by the regression equation were nearly the same.

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Microstructure and corrosion behavior of linear friction welded TA15 and TC17 dissimilar joint

Cited by 14 publications

References 47 publications

Molecular Dynamics Study on the Welding Behavior in Dissimilar TC4-TA17 Titanium Alloys

Molecular Dynamics Study on the Welding Behavior in Dissimilar TC4-TA17 Titanium Alloys

Investigation of friction welding parameters of AISI 304L/Ti-6AL-4V joints

Optimization of Parameters in Laser Powder Bed Fusion TA15 Titanium Alloy Using Taguchi Method

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