Effect of laser power on microstructure and mechanical properties of Nd: YAG laser welding of titanium tubes

Palanivel, R.

doi:10.1007/s11771-023-5292-x

Cited by 5 publications

(1 citation statement)

References 45 publications

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“…At the same time, distortion of the welded Ti alloys by employment of fusion welding methodologies normally occur owing to the low thermal based conductivity of the Ti [2,3]. In addition to this, Ti and its alloys are extremely reactive in their molten condition and the generation of Ti based oxides, porosities, inclusions etc, in the nugget of the weld zone will certainly result in the fabrication of inferior quality Ti joints possessing degraded mechanical properties [4].…”

Section: Introductionmentioning

confidence: 99%

Optimization of parameters and formulation of numerical model employing GRA–PCA and RSM approach for friction stir welded Ti–6Al–4V alloy joints

Babu S D

et al. 2024

Mater. Res. Express

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In this work, an endeavor was made to determine the impact of the tool’s shoulder diameter, pin profile, rotational and traverse speeds on the mechanical properties of the friction stir welded namely Ti–6Al–4V alloy joints. A total of 21 experiments were carried out based on the central composite design (CCD) concept of response surface methodology (RSM). A quadratic regression based numerical model was formulated to ascertain the relationship amidst the parameters of FSW process and the mechanical properties of the fabricated Ti alloy joints. Analysis of variance (ANOVA) was employed to confirm the importance of parameters and their interactive impacts. Optimized process parameter combinations were ascertained by grey relation based analysis (GRA) was coupled together with principal component analysis (PCA), a hybrid based approach. Single score of GRG based response was determined and GRG scores were ranked for all experiments. 1st rank was attained by the experiment no. 20 possessing a GRG score of 2.9989. Optimized values of 25mm shoulder diameter having a taper cylindrical pin geometry employed at a tool traverse speed of 40 mm/min, rotational speed of 1400 rpm resulted in the generation of flaw free Ti alloy joint possessing a largest tensile strength of 809.8 MPa, yield strength of 778.7 MPa and percentage of elongation of 6.9%. SEM based fractography ofTi alloy joint specimens announced that taper cylindrical pin geometry along with 25m shoulder diameter of employed tool have an inevitable part in generating frictional heat in ideal volumes and a perfect stirring action during FSW process.

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Section: Introductionmentioning

confidence: 99%

Optimization of parameters and formulation of numerical model employing GRA–PCA and RSM approach for friction stir welded Ti–6Al–4V alloy joints

Babu S D

et al. 2024

Mater. Res. Express

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A Review on Corrosion Behavior and Surface Modification Technology of Nickel Aluminum Bronze Alloys: Current Research and Prospects

Wang,

Liu,

et al. 2024

Adv Eng Mater

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Nickel aluminum bronze alloy, a complex alloy containing multiple phases, has become the most common material for naval propellers due to its good corrosion resistance. Traditional cast nickel aluminum bronze shows serious corrosion behavior in harsh service environments. This article reviews progress on the corrosion behaviors and corrosion mechanism of nickel aluminum bronze in highly corrosive and complex marine environments and systematically discusses the research status of the surface modification technologies such as laser surface strengthening, mechanical shot peening, friction stir and thermal spraying, and so on. To improve the comprehensive performance of nickel aluminum bronze, this work focuses on analyzing the effect of process parameters on the corrosion resistance of nickel aluminum bronze alloy while researching propeller blade surface modification technology. Finally, the future research and development direction of nickel aluminum bronze in the fields of laser and arc additive manufacturing is prospected.

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A critical review of microstructure and mechanical properties of laser welded similar and dissimilar titanium alloy joints

Rominiyi,

Mashinini

2024

Journal of Advanced Joining Processes

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Effect of laser power on microstructure and mechanical properties of Nd: YAG laser welding of titanium tubes

Cited by 5 publications

References 45 publications

Optimization of parameters and formulation of numerical model employing GRA–PCA and RSM approach for friction stir welded Ti–6Al–4V alloy joints

Optimization of parameters and formulation of numerical model employing GRA–PCA and RSM approach for friction stir welded Ti–6Al–4V alloy joints

A Review on Corrosion Behavior and Surface Modification Technology of Nickel Aluminum Bronze Alloys: Current Research and Prospects

A critical review of microstructure and mechanical properties of laser welded similar and dissimilar titanium alloy joints

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