Influence of Cryogenic cooling (Liquid Nitrogen) on Microstructure and Mechanical properties of Friction stir welded 2014-T6 Aluminum alloy

Devaraju, Anusuriya; Kishan, Vaishali

doi:10.1016/j.matpr.2017.11.250

Cited by 24 publications

(13 citation statements)

References 10 publications

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“…It was noted that the microhardness values of the processed and unprocessed joints (FSWed and GTAWed) were higher compared to the base metal one. is behaviour of microhardness is influenced by the change in grain sizes and grain distribution [59][60][61]. Table 6 shows the tensile test results for the friction stir-processed and unprocessed GTAWed joints.…”

Section: 2mentioning

confidence: 99%

Effect of Friction Stir Processing on Gas Tungsten Arc-Welded and Friction Stir-Welded 5083-H111 Aluminium Alloy Joints

Mabuwa

Msomi

2019

Advances in Materials Science and Engineering

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This paper presents the analysis of the friction stir-processed aluminium alloy 5083-H111 gas tungsten arc-welded and friction stir-welded joints. The comparative analysis was performed on the processed and unprocessed gas tungsten arc-welded and friction stir-welded joints of similar aluminium alloy 5083-H111. The results showed a clear distinction between the friction stir processed joints and unprocessed joints. There is a good correlation observed between the microstructural results and the tensile results. Ultrafine grain sizes of 4.62 μm and 7.177 μm were observed on the microstructure of the friction stir-processed friction stir-welded and gas tungsten arc-welded joints. The ultimate tensile strength for friction stir-welded and gas tungsten arc-welded before friction stir processing was 153.75 and 262.083 MPa, respectively. The ultimate tensile strength for friction stir processed friction stir-welded joint was 303.153 MPa and gas tungsten arc-welded joints one was 249.917 MPa. The microhardness values for the unprocessed friction stir-welded and gas tungsten arc-welded joints were both approximately 87 HV, while those of the friction stir-processed ones were 86.5 and 86 HV, respectively. The application of friction stir processing transformed the gas tungsten arc morphology from brittle to ductile dimples and reduced the ductile dimple size of the unprocessed friction stir-welded joints from the range of 4.90–38.33 μm to 3.35–15.59 μm.

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Section: 2mentioning

confidence: 99%

Effect of Friction Stir Processing on Gas Tungsten Arc-Welded and Friction Stir-Welded 5083-H111 Aluminium Alloy Joints

Mabuwa

Msomi

2019

Advances in Materials Science and Engineering

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“…Many researchers investigated the effectiveness of cryogenic cooling in machining [ 53 – 59 ]. Sivaiah and Chakradhar [ 60 ] investigated the effect of cryogenic coolant on turning of 17–4 PH stainless steel and compared the performance of cryogenic coolant to that of MQL, flooded, and dry machining.…”

Section: Types Of Coolant Deliverymentioning

confidence: 99%

Recent progress and evolution of coolant usages in conventional machining methods: a comprehensive review

Kui

Islam

Reddy

et al. 2021

Int J Adv Manuf Technol

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This paper reviews recent progress and applications of usage of cutting fluids in conventional machining processes. In addition to reviewing the various conventional and advanced cooling techniques during machining, the paper also discusses the use of minimum quantity lubrication (MQL) in several types on metals such as steel, aluminum, alloy, and titanium alloys. Due to the toxicity of conventional cutting fluid resulting in ecological problems, the demand for environmentally friendly cutting fluid is rising. Therefore, natural vegetable oil is chosen as potential replacement as an environmentally friendly cutting fluid which fulfills the important aspects of biodegradability and sustainability. Application of vegetable oil-based cutting fluids under MQL techniques are also discussed. Moreover, the potential of palm oil as biodegradable and environmentally friendly natural vegetable oil-based metal-working fluids in MQL are reviewed.

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“…Previous studies on FSP have primarily focused on the enhancement of microstructure, 6,7 mechanical properties, 8,9 corrosion resistance, 10,11 wear resistance, 12,13 and fatigue behavior. 14,15 Also, various studies correlated the microstructure of the processed region with mechanical properties, corrosion resistance, wear-resistance, and fatigue behavior to establish a suitable relation.…”

Section: Introductionmentioning

confidence: 99%

Towards finding a novel constant between local and bulk strength of friction stir processed aluminum alloys

Satyanarayana

Kumar

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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Friction stir processing has gained remarkable success in producing ultrafine-grained structures and surface composites. In this context, the primary objective is to establish a linear relationship between local strength (i.e. hardness) and bulk mechanical strength (i.e. tensile strength) of friction stir processed aluminum alloys using experimental investigations on selected alloy system together with data reported in literature sources. Initially, authors generated a linear relation between hardness and strength of friction stir processed aluminum alloys under different cooling conditions. After friction stir processing, recrystallized fine grains were formed and better refinement was achieved in cooling-assisted friction stir processing. Irrespective of grain refinement, the strength and hardness of friction stir processed samples were found to be lower compared to the base metal due to the precipitation phenomenon during friction stir processing. At the same time, hardness and strength improved in cooling-assisted friction stir processing compared to natural-cooled friction stir processing due to better grain refinement going by the parameters of Hall–Petch equation. For friction stir processed samples, relevant constants were found using Hall–Petch equation. The experimental values of hardness and strength were well fitted with the formulated equations due to the formation of a homogeneous fine-grained structure. Also, two novel linear relations were successfully established between hardness and strength with proportionality constants of 1.9 and 2.7, respectively. On the other hand, it was also concluded that it is not possible to establish a linear relation between hardness and strength of surface composites due to structural inhomogeneity and agglomeration of reinforcement particles.

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Influence of Cryogenic cooling (Liquid Nitrogen) on Microstructure and Mechanical properties of Friction stir welded 2014-T6 Aluminum alloy

Cited by 24 publications

References 10 publications

Effect of Friction Stir Processing on Gas Tungsten Arc-Welded and Friction Stir-Welded 5083-H111 Aluminium Alloy Joints

Effect of Friction Stir Processing on Gas Tungsten Arc-Welded and Friction Stir-Welded 5083-H111 Aluminium Alloy Joints

Recent progress and evolution of coolant usages in conventional machining methods: a comprehensive review

Towards finding a novel constant between local and bulk strength of friction stir processed aluminum alloys

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