Russian Journal of Nondestructive Testing最新文献

Comparison of Digital Radiography and Computed Tomography as Nondestructive Testing Techniques for the Assessment of Lack of Fusion Defects in Additively Manufactured SS316L Coupon 比较数字射线照相术和计算机断层扫描技术作为无损检测技术用于评估添加式制造的 SS316L 缺口是否存在熔合缺陷

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S1061830924601946

Remakanthan S, Manu Joseph, Girish N Namboodiri, Anil Kumar V, Rohit Kumar Gupta

{"title":"Comparison of Digital Radiography and Computed Tomography as Nondestructive Testing Techniques for the Assessment of Lack of Fusion Defects in Additively Manufactured SS316L Coupon","authors":"Remakanthan S, Manu Joseph, Girish N Namboodiri, Anil Kumar V, Rohit Kumar Gupta","doi":"10.1134/S1061830924601946","DOIUrl":"10.1134/S1061830924601946","url":null,"abstract":"Additive manufacturing has been playing a significant role in the manufacturing of components with complex geometries for aerospace applications recently. Comprehensive nondestructive testing techniques (NDT) are vital for the successful quality evaluation of critical components in this domain. Appropriate selection of the NDT scheme is essential for the qualification of such components. Major NDT techniques are designed based on the interaction of electromagnetic radiation and the response of the sound or heat energy transmission or reflection from the test object. The common defects noticed in the components made through additive manufacturing (AM) routes are pores, clusters of porosities, micro-cracks, lack of fusion and layer delamination. Considering the morphology and the complications in the geometry of aerospace components, many conventional NDT techniques are unsuitable for the inspection of AM components. Detection of unfused powder in the AM components by conventional radiography is difficult due to the low radiation attenuation coefficient gradient between the unfused and fused metallic regions. Also, the detection of defects in the radiography technique depends entirely on the beam path. Multiple radiography images with different beam angles and film combinations are essential to get the maximum information on the defects by conventional radiography techniques. In this aspect, computed tomography, a noncontact NDT technique provides a better solution for determining embedded defects such as lack of fusion and layer separation due to presence of unfused powder in the AM components. The present study compares the capability of computed tomography and 2D digital radiography for the identification of lack of fusion defects in stainless steel SS316L specimens fabricated through the Laser powder bed fusion AM route.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":"60 8","pages":"955 - 964"},"PeriodicalIF":0.9,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser Ultrasonic Measurements for Generation and Detection of Lateral Waves in a Solid for Surface Defect Inspection 用于表面缺陷检测的固体侧向波产生和检测的激光超声波测量法

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S1061830924601934

W. Djerir, T. Boutkedjirt, M. Ourak, R. Halimi, A. Allag, F. M. L. Rekbi, A. Rezzoug

引用次数: 0

Logarithmic Frequency Modulated Thermal Wave Imaging for Subsurface Analysis 用于地下分析的对数调频热波成像技术

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S1061830924602149

Sk. Aashik, Sirisha. Ch, V. S. Ghali, S. Koteswararao, F. Wang, R. Mulaveesala

{"title":"Logarithmic Frequency Modulated Thermal Wave Imaging for Subsurface Analysis","authors":"Sk. Aashik, Sirisha. Ch, V. S. Ghali, S. Koteswararao, F. Wang, R. Mulaveesala","doi":"10.1134/S1061830924602149","DOIUrl":"10.1134/S1061830924602149","url":null,"abstract":"Capturing the spatio temporal radiation in the infrared portion of the spectrum from any object renders the temperature evolution of it and culminates in presenting the information about the hidden subsurface anomalies within the object. However deeper depth scanning and higher depth resolution with enhanced subsurface visualization are the significant challenges generally encountered in these studies that demands various stimulation and processing mechanism to explore these details. This manuscript introduces a novel log frequency modulation-based stimulation along with various post-processing approaches that caters to these requirements. This modality facilitates a band of low frequencies with increased energy in the stimulus for deeper depth scanning and spectral processing approaches to provide enhanced depth resolution in a single experimentation cycle. The hypothesis is validated through the experimentation carried out over a carbon fiber-reinforced plastic specimen with embedded flat bottom holes. A qualitative comparison between various signal processing approaches using thermographic metrics like the sizing of the defects and signal-to-noise ratio recommends the superiority of proposed stimulation and processing techniques for enhanced defect detection.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":"60 8","pages":"898 - 911"},"PeriodicalIF":0.9,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Layered Composite Hydrogenated Films of Zirconium and Niobium: Production Method and Testing Using Thermo EMF (Thermoelectric Method) 锆和铌的层状氢化复合薄膜：生产方法和使用热电磁场（热电法）进行测试

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S106183092470075X

V. V. Larionov, R. S. Laptev, A. M. Lider

{"title":"Layered Composite Hydrogenated Films of Zirconium and Niobium: Production Method and Testing Using Thermo EMF (Thermoelectric Method)","authors":"V. V. Larionov, R. S. Laptev, A. M. Lider","doi":"10.1134/S106183092470075X","DOIUrl":"10.1134/S106183092470075X","url":null,"abstract":"Layered materials incorporating hydrogen were obtained using Nb/Zr films with varying numbers of layers from 50 to 100. The films were deposited on a silicon substrate using a vacuum magnetron sputtering method on a dedicated setup. The film thickness varied from 10 to 50 nm. The resulting material was hydrogenated with protons on a TPU electrostatic generator with an energy of up to 1.2 MeV. The deposition modes for nanoscale metallic multilayer Zr/Nb systems were determined: for a Zr target the specific power of the sputtering system was 37.9 W/cm2, and for a Nb target it was 26.4 W/cm2. A coating with clear boundaries between individual layers of zirconium and niobium was obtained. It was shown that the optimal conditions for studying nanoscale Zr/Nb layers are a pressure of 700 Pa, a power of 40 W, a frequency of 2 kHz, and a plasma filling factor of 12.5% for coatings with individual layer thicknesses of 100 nm. For coatings with layer thicknesses from 10 to 50 nm, the optimal conditions are a pressure of 650 Pa, a power of 40 W, and a frequency of 1 kHz. The thermo EMF method (GOST (State Standard) 25315–82) was used for testing. It was found out that after proton irradiation, an intensive accumulation of hydrogen atoms occurs near the interfaces; it reduces the structure defectiveness and entails a change in the thermo EMF up to the inversion of its sign. The hydrogen distribution is predominantly bimodal, with local maxima in hydrogen concentration observed at the Nb/Zr interfaces, while accumulation at the Zr/Nb interface is considerably lower. Hydrogen localization near interfaces primarily occurs around zirconium.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":"60 8","pages":"879 - 887"},"PeriodicalIF":0.9,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sparse Optimal Design of Ultrasonic Phased Array for Efficient DMAS Imaging 用于高效 DMAS 成像的超声相控阵稀疏优化设计

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S1061830924602083

Lijun Ma, Juncen Wu, Yu Liu, Shijian Zhou, Xiongbing Li

引用次数: 0

Estimation on Compressive Strength of In Situ Concrete with Innovative Pendulum Hammering Test Method 用创新摆锤试验法估算现场混凝土抗压强度

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S1061830924602101

Suhang Yang, Chen Hu, Zhifeng Xu

引用次数: 0

Backcalculation of Elastic Moduli for Layered Media Based on Dynamic Deformation Analysis (Example of Highways) 基于动态变形分析的层状介质弹性模量反算（以高速公路为例）

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S1061830924602010

A. N. Tiraturyan

{"title":"Backcalculation of Elastic Moduli for Layered Media Based on Dynamic Deformation Analysis (Example of Highways)","authors":"A. N. Tiraturyan","doi":"10.1134/S1061830924602010","DOIUrl":"10.1134/S1061830924602010","url":null,"abstract":"This article is dedicated to improving the method of backward calculation of elastic moduli for road pavement layers in a dynamic setting, which involves analyzing deformation characteristics in the time domain. To address this issue, a mathematical model of a layered half-space has been adapted to compute amplitude–time characteristics of deformation on the surface of the layered medium and to construct corresponding maxima of vertical displacements. Adjustments have been made to the design values of vertical displacements relative to recorded experimental displacements in field conditions. The correspondence between the final values of maximum vertical displacements, amplitude–time characteristics on the surface of the layered medium, and the shapes and areas of dynamic hysteresis loops on the surface of the investigated medium has been demonstrated, achieved by adjusting the design characteristics relative to the experimental data. For the first time in solving the problem of determining the mechanical parameters of layered media, dynamic hysteresis loops and the comparison of their design and experimental areas have been proposed as a criterion for the adequacy of the result achieved.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":"60 8","pages":"947 - 954"},"PeriodicalIF":0.9,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Novel Methodology for the Transformer Winding Equivalent Ladder Network Circuit Parameters Identification by Employing the Frequency-Domain and Population Based Method 基于频域和群体的变压器绕组等效梯形网络电路参数识别新方法

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S1061830924602186

Abdallah Chanane, Hamza Houassine

{"title":"A Novel Methodology for the Transformer Winding Equivalent Ladder Network Circuit Parameters Identification by Employing the Frequency-Domain and Population Based Method","authors":"Abdallah Chanane, Hamza Houassine","doi":"10.1134/S1061830924602186","DOIUrl":"10.1134/S1061830924602186","url":null,"abstract":"Frequency response analysis (FRA) is the widely used technique for diagnosis of power transformer winding. Previous works in the field of FRA have steer to the standardization of its measurements procedure. To date, there is no reliable standard code for the interpretation of FRA results. In this context, this paper proposes a new parametric method to synthesis the High frequency electrical ladder network circuit (HF-ELNC) of the transformer winding. Initially, a nondestructive process is applied to extract three main winding parameters. Mainly, the shunt-series capacitances and the total equivalent inductance basing on the frequency response data from the winding terminal. To this end, the proposed continuous-time state–space model is converted into a gain-numerator-denominator form. After that, the derived matrix equations are iteratively estimated by population-based algorithm using enhanced logistic choatic marine predator algorithm (ELCMPA), from where, three objective functions are considered in the model of identification including the capacitances, the inductances and the resistances. As well, classical methods such as finite elements or analytical formulas require design winding specifications. In this study, instead of winding geometry knowledge, the proposed method certifies a unique, physically and mutually coupled HF-ELNC. The accuracy of the proposed method is validated through case study of a real transformer winding.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":"60 8","pages":"921 - 934"},"PeriodicalIF":0.9,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling a Two-Element Tangential Eddy Current Probe with Active Shielding for Soldered Joint Testing 为用于焊接接头测试的带主动屏蔽的双元件切向涡流探头建模

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S106183092460196X

A. E. Gorbunov, P. V. Solomenchuk, A. S. Umanskii

引用次数: 0

Evaluating Efficiency of Foreign Object Detection Technology Based on the Use of Passive Infrared Thermography 评估基于被动红外热成像技术的异物探测技术的效率

IF 0.9 4区材料科学

Russian Journal of Nondestructive Testing Pub Date : 2024-11-18 DOI: 10.1134/S106183092460206X

Hao Yang, Yan Yan, Xianglong Liu, Hongjin Wang, Yuejun Hou, V. P. Vavilov

{"title":"Evaluating Efficiency of Foreign Object Detection Technology Based on the Use of Passive Infrared Thermography","authors":"Hao Yang, Yan Yan, Xianglong Liu, Hongjin Wang, Yuejun Hou, V. P. Vavilov","doi":"10.1134/S106183092460206X","DOIUrl":"10.1134/S106183092460206X","url":null,"abstract":"A new method for detecting subsurface solid objects buried in farmlands, such as plastic bottles, wasted cans, etc., has been proposed by applying the technique of infrared (IR) thermography to monitor the temperature of soil surface subjected to solar irradiation. Through both experimentation and simulation, this study parameterizes the influence of environmental factors on IR images and validates the detection capabilities of the method. To verify the feasibility of IR thermography testing, the experimental section of the work is devoted to monitoring aluminum and polyethylene terephthalate cans buried in sand with varying grades of moisture. The dependencies between the efficiency of foreign object detection and their depth are derived. A restoring pseudothermal flux algorithm was used to reduce the impact of lateral diffusion on IR thermographic detection of foreign objects buried in soil. Variations of soil temperature caused by varying solar radiation during multiple day-night cycles are used to improve the detectable diameter-depth ratio. The described technique is efficient and provides no harm to human beings.","PeriodicalId":764,"journal":{"name":"Russian Journal of Nondestructive Testing","volume":"60 8","pages":"888 - 897"},"PeriodicalIF":0.9,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0