Anisotropy of fatigue behavior and tensile behavior of 5A06 aluminum alloy based on infrared thermography

Yan, Zhifeng; Zhang, Hongxia; Chen, Pengda; Wang, Wenxian

doi:10.1007/s11595-017-1574-1

Cited by 8 publications

(4 citation statements)

References 10 publications

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“…IgG has antiviral, antibacterial, and complement fixation functions, and it participates in mucosal immunity through placenta and IgA [49]. The decline of IgG reduces the body's antibacterial and antiviral ability, which can easily lead to repeated respiratory infections.…”

Section: Acute Upper Respiratory Tract Infectionmentioning

confidence: 99%

Infrared Thermal Imaging of Patients With Acute Upper Respiratory Tract Infection: Mixed Methods Analysis

Zhang¹,

Cao²,

Deng³

et al. 2021

Interact J Med Res

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Background: Upper respiratory tract infection is a common disease of the respiratory system. Its incidence is very high, and it can even cause pandemics. Infrared thermal imaging (IRTI) can provide an objective and quantifiable reference for the visual diagnosis of people with acute respiratory tract infection, and it can function as an effective indicator of clinical diagnosis. Objective:The aims of this study are to observe and analyze the infrared expression location and characteristics of patients with acute upper respiratory tract infection through IRTI technology and to clearly express the quantification of temperature, analyze the role of IRTI in acute upper respiratory tract diagnostic research, and understand the impact of IRTI in qualitative and quantitative research. Methods: From December 2018 to February 2019, 154 patients with acute upper respiratory tract infection were randomly selected from the emergency department of the First Affiliated Hospital of Guangzhou Medical University. Among these patients, 73 were men and 81 were women. The subjects were divided into two groups according to the presence of fever, namely, fever and nonfever groups. Qualitative and quantitative analyses of the infrared thermal images were performed to compare the results before and after application of the technology.Results: Using the method described in this paper, through the analysis of experimental data, we elucidated the role of IRTI in the diagnosis of acute upper respiratory tract infection, and we found that qualitative and quantitative IRTI analyses play important roles. Through the combination of theory and experimental data, the IRTI analysis showed good results in identifying acute upper respiratory tract infection.Conclusions: IRTI technology plays an important role in identifying the infrared expression location and characteristics of patients with acute upper respiratory tract infection as well as in the quantification of clear expression of body temperature, and it provides an objective and quantifiable reference basis for elucidating the pathogenesis of these patients.

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Section: Acute Upper Respiratory Tract Infectionmentioning

confidence: 99%

Infrared Thermal Imaging of Patients With Acute Upper Respiratory Tract Infection: Mixed Methods Analysis

Zhang¹,

Cao²,

Deng³

et al. 2021

Interact J Med Res

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“…6). They are (I) Linear temperature drop stage (II) Temperature rise stage (III) Rapid temperature rise stage (IV) Final temperature decline stage [19,20]. At the stage-I temperature of the material drops in a linear manner due to the thermoelastic effect.…”

Section: Tensile Behavior Vs Peak Temperaturementioning

confidence: 99%

Correlation between Tensile Deformation Behavior and Microstructural Morphology of Nuclear Grade Austenitic Stainless Steel Weld Joints using Infrared Thermography Technique

Lakshminarayanan¹,

Rajasekaran²,

Menaka

2020

Weld. Tech. Rev.

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Tensile deformation behavior of nuclear grade Austenitic Stainless Steel (SS) and its weld joints fabricated by Gas Tungsten Arc Welding (GTAW) and Activated flux Gas Tungsten Arc Welding (AGTAW) processes were studied and correlated with relevant microstructural morphologies using Infrared Thermography (IRT) technique. The microstructure of base metal showed a complete austenite phase. GTAW Fusion Zone (FZ) exhibited both primary ferrite and primary austenite mode of solidification. Meantime, AGTAW FZ exhibited only primary austenite mode of solidification A strain rate of 4.4x10-4 s-1 was used during the tensile test of the base metal and weld samples. The failure locations of the base metal, GTAW and AGTAW samples were noticed at the center of the gauge portion, the base metal side away from Fusion Line (FL) and Heat Affected Zone (HAZ) respectively. Temperature variations of the base metal and weld zones were recorded in the form of thermograms using the IR camera at the different stages of the tensile deformation. During deformation study, peak temperatures of 39.2 oC, 38.8 oC and 34 oC were observed at the base metal, GTAW and AGTAW samples respectively. The lesser peak temperature of the AGTAW sample compared to the base metal and GTAW samples indicated that the AGTAW sample undergone lesser deformation. Moreover, tensile deformation behaviors of the base metal and weld samples were correlated with their microstructural morphologies using corresponding temperature curves.

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“…This temperature curve is divided into four main stages based on the deformation behavior of the material. They are (i) linear temperature drop stage, (ii) temperature rise stage, (iii) rapid temperature rise stage, and (iv) final temperature decline stage [11,12]. The considerable temperature drop Fig.…”

Section: Tensile Behavior Versus Peak Temperaturementioning

confidence: 99%

Study of Infrared Thermography on Tensile Behavior of Laser Beam Welded 316LN Austenitic Stainless Steel

Rajasekaran¹,

Lakshminarayanan²,

Venkatakrishna³

et al. 2020

Lecture Notes in Mechanical Engineering

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In this investigation, the tensile behavior of laser beam welded 316LN austenitic stainless steel was studied by infrared thermography (IRT) and compared with the base metal tensile behavior. Initially, microstructural characterization of base metal and weld bead was carried out by optical microscopy (OM). Base metal comprises an average grain size of 60 μm and LBW exhibited refined grains at the fusion zone. Very narrow HAZ around 15 μm was recorded at LBW interface. Tensile samples were prepared as per ASTM standard E8, and the test was conducted at room temperature of 26.5°C. A strain rate of 4.4 × 10 −4 s −1 was used during the tensile test of the base metal and LBW samples. Temperature variations of the base metal and weld bead were recorded by an infrared camera at different stages of deformation. Compared to LBW sample base metal sample deformed more and displayed the percentage of elongation as 64.14%, whereas LBW sample displayed less percentage of elongation around 53.2% due to lesser deformation as compared to the base metal. This is attributed to grain refinement during rapid solidification of LBW process at fusion zone. High temperatures were recorded on the base metal (39.2°C) and center of the LBW fusion zone (30.8°C) before just the time of fracture. This high temperature of the base metal over LBW sample indicates that the base metal deformed more compared to laser beam welded sample.

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Anisotropy of fatigue behavior and tensile behavior of 5A06 aluminum alloy based on infrared thermography

Cited by 8 publications

References 10 publications

Infrared Thermal Imaging of Patients With Acute Upper Respiratory Tract Infection: Mixed Methods Analysis

Infrared Thermal Imaging of Patients With Acute Upper Respiratory Tract Infection: Mixed Methods Analysis

Correlation between Tensile Deformation Behavior and Microstructural Morphology of Nuclear Grade Austenitic Stainless Steel Weld Joints using Infrared Thermography Technique

Study of Infrared Thermography on Tensile Behavior of Laser Beam Welded 316LN Austenitic Stainless Steel

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