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Unconventional Methods of Non-Destructive Tests. Part 3. 非常规的无损检测方法。第3部分。
Biuletyn Instytutu Spawalnictwa Pub Date : 2021-06-01 DOI: 10.17729/ebis.2021.3/6
Łukasz Rawicki
{"title":"Unconventional Methods of Non-Destructive Tests. Part 3.","authors":"Łukasz Rawicki","doi":"10.17729/ebis.2021.3/6","DOIUrl":"https://doi.org/10.17729/ebis.2021.3/6","url":null,"abstract":"The article presents some testing methods applicable in the aviation industry. In addition to popular non-destructive methods, NDT methods used in the aviation industry (and discussed in the article) include optical holography or shearography. Structural materials used in the aviation industry as well as the importance of analyses, both at the manufacturing stage and during operation, require the performance of regular tests as a negligent approach to such activities could end up in a catastrophe.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128517097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selected Properties of High-Frequency Electric Arc Initiators and Stabilisation Oscillators. Part 1. Devices with Free Electric Arc 高频电弧启动器和稳定振荡器的选定特性。第1部分。自由电弧装置
Biuletyn Instytutu Spawalnictwa Pub Date : 2021-03-01 DOI: 10.17729/ebis.2021.2/4
A. Sawicki
{"title":"Selected Properties of High-Frequency Electric Arc Initiators and Stabilisation Oscillators. Part 1. Devices with Free Electric Arc","authors":"A. Sawicki","doi":"10.17729/ebis.2021.2/4","DOIUrl":"https://doi.org/10.17729/ebis.2021.2/4","url":null,"abstract":"The article presents selected physical properties of electric arc used in welding engineering as well as discusses differences in requirements concerning ionisers used to initiate and re-initiate electric arc. In addition, the article compares properties of ioniser systems used to stabilise electric arc burning as well as discusses spark gap and semiconductor systems generating high-frequency and high-voltage impulses used to generate spark discharges. The article also discusses the effect of ioniser operation after the modification of static current-voltage characteristics, enabling the modelling of dynamic states of electric arc.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124161113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unconventional Methods of Non-Destructive Tests. Part 2 非常规的无损检测方法。第2部分
Biuletyn Instytutu Spawalnictwa Pub Date : 2021-03-01 DOI: 10.17729/ebis.2021.2/3
Łukasz Rawicki
{"title":"Unconventional Methods of Non-Destructive Tests. Part 2","authors":"Łukasz Rawicki","doi":"10.17729/ebis.2021.2/3","DOIUrl":"https://doi.org/10.17729/ebis.2021.2/3","url":null,"abstract":"Non-destructive tests (NDTs) utilise various physical phenomena occurring inside or on the surface of objects subjected to testing. These types of tests do not break continuity or trigger changes in the structure of materials. Non-destructive tests also utilise electromagnetic properties of materials. The article presents methods which, as a result of the effect of electromagnetic field, magnetic field and electromagnetic radiation can be used successfully in industrial applications (e.g. magnetic flux leakage method and potential method).","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116512715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Induction and Electric Arc-Based Remelting of Thermally Sprayed Layers – Overview 热喷涂层的感应和电弧重熔技术综述
Biuletyn Instytutu Spawalnictwa Pub Date : 2021-02-01 DOI: 10.17729/EBIS.2021.1/1
M. Węglowski, R. Jachym, K. Krasnowski, K. Kwieciński, J. Pikuła
{"title":"Induction and Electric Arc-Based Remelting of Thermally Sprayed Layers – Overview","authors":"M. Węglowski, R. Jachym, K. Krasnowski, K. Kwieciński, J. Pikuła","doi":"10.17729/EBIS.2021.1/1","DOIUrl":"https://doi.org/10.17729/EBIS.2021.1/1","url":null,"abstract":"In many cases, the technology enabling the melting of thermally sprayed layers has no alternative. High-performance thermal spraying processes make it possible to obtain densely sprayed layers. However, previous research revealed that sprayed layers are characterised by porosity and numerous material imperfections. The above-named situation results from the specific manner of layer application. The article overviews induction and arc-based technologies enabling the melting of sprayed layers as well as discusses possible post-spray imperfections.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123137412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Mayr-Pentegov Model of Electric Arc Involving the Use of the Exponential Function and Enabling the Approximation of Static Characteristics 利用指数函数实现电弧的mayer - pentegov模型及其静态特性的逼近
Biuletyn Instytutu Spawalnictwa Pub Date : 2021-02-01 DOI: 10.17729/EBIS.2021.1/5
A. Sawicki
{"title":"The Mayr-Pentegov Model of Electric Arc Involving the Use of the Exponential Function and Enabling the Approximation of Static Characteristics","authors":"A. Sawicki","doi":"10.17729/EBIS.2021.1/5","DOIUrl":"https://doi.org/10.17729/EBIS.2021.1/5","url":null,"abstract":"The article presents the justified use of functions containing the exponential component for the approximation of the static current-voltage characteristics of electric arc. The Author proposed a new function approximating the above-named characteristics which were next used in the mathematical Mayr-Pentegov model, expressed in two, i.e. differential and integral, forms. The two forms constituted the basis enabling the development of macromodels using controlled voltage and current sources. The article also presents families of dynamic current-voltage characteristics obtained through the simulation of processes in a circuit containing macromodels of arc powered by the source of current characterised by sinusoidal and trapezoidal waveforms and various frequency. The article demonstrates the usability of the proposed variants of the Mayr-Pentegov model.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127298609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of Heads with the Water Coupling for Measuring Thicknesses of Tubes Used in Coal-Fuelled Power Engineering Systems Part 1. Primary Issues 水耦合封头在燃煤发电系统管厚测量中的应用第1部分。主要问题
Biuletyn Instytutu Spawalnictwa Pub Date : 2021-02-01 DOI: 10.17729/EBIS.2021.1/3
Rafal Jurkiewicz, J. Słania
{"title":"Application of Heads with the Water Coupling for Measuring Thicknesses of Tubes Used in Coal-Fuelled Power Engineering Systems Part 1. Primary Issues","authors":"Rafal Jurkiewicz, J. Słania","doi":"10.17729/EBIS.2021.1/3","DOIUrl":"https://doi.org/10.17729/EBIS.2021.1/3","url":null,"abstract":"The first part of the article presents basic information concerning measurements of corrosion thickness measurements (mapping) in respect of issues accompanying the combustion of biomass in currently operated power boilers. The article emphasises issues related to the degradation of the surface of waterwall tubes and stresses the necessity of applying a technique enabling the performance of reliable measurements through the destroyed surface of the boiler tube. The article also presents issues possibilities of using Spot weld types of transducers and the water column as a method enabling the non-contact of the rube surface.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"58 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123389338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Development of a Technology of the Laser-Based Welding of Butt Joints in Composite Tubes 复合材料管对接接头激光焊接技术的发展
Biuletyn Instytutu Spawalnictwa Pub Date : 2021-02-01 DOI: 10.17729/EBIS.2021.1/2
Radosław Ciokan, Michał Urbańczyk
{"title":"The Development of a Technology of the Laser-Based Welding of Butt Joints in Composite Tubes","authors":"Radosław Ciokan, Michał Urbańczyk","doi":"10.17729/EBIS.2021.1/2","DOIUrl":"https://doi.org/10.17729/EBIS.2021.1/2","url":null,"abstract":"The article presents the results concerning the development of a technology combining laser welding and hybrid surfacing enabling the making of butt joints in composite tube grades Sanicro 38/4L7 and 3R12/4L7. The tests involved the determination of the parameters of the laser welding of tube grade 4L7 and the hybrid surfacing of the external layer of tube grade Sanicro 38 and 3R12. The article also presents the results of the macro and microscopic tests of the joints.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128960464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Direction of the Rolling of Plates Made of Steel Grade 0H18N9 versus Welding Distortions 0H18N9钢板轧制方向与焊接变形的关系
Biuletyn Instytutu Spawalnictwa Pub Date : 2020-12-01 DOI: 10.17729/EBIS.2020.6/5
Damian Grzesiak
{"title":"Direction of the Rolling of Plates Made of Steel Grade 0H18N9 versus Welding Distortions","authors":"Damian Grzesiak","doi":"10.17729/EBIS.2020.6/5","DOIUrl":"https://doi.org/10.17729/EBIS.2020.6/5","url":null,"abstract":"The article presents the results of tests concerning the effect of the direction of the rolling of plates made in steel 0H18N9 on welding distortions. The research-related analysis was concerned with the rolling direction in relation to the longer edge of specimens. The specimens were welded using the MAG method involving the use of pulsed arc. The acquisition of surface flatness-related data was performed using a GOM ATOS 5M blue light scanner. The analysis of the results revealed that the mean surface flatness of the specimens was similar in relation to all of the rolling directions related to analysis. However, the direction of distortions parallel and perpendicular to the weld varied depending on the direction of rolling.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131151568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hybrid Surfacing: Laser + MAG Electric Arc 混合堆焊:激光+ MAG电弧
Biuletyn Instytutu Spawalnictwa Pub Date : 2020-12-01 DOI: 10.17729/EBIS.2020.6/2
Michał Urbańczyk
{"title":"Hybrid Surfacing: Laser + MAG Electric Arc","authors":"Michał Urbańczyk","doi":"10.17729/EBIS.2020.6/2","DOIUrl":"https://doi.org/10.17729/EBIS.2020.6/2","url":null,"abstract":"The article discusses technological tests involving the use of the hybrid process (laser + electric arc (MAG)) for the efficient application of layers (surfacing). The objective of the tests was to determine the effect of an additional welding power source (laser beam) on the possibility of increasing a surfacing rate (in comparison with surfacing rates obtainable using the MAG method) as well as on the formation (shaping) of the overlay weld geometry and the degree of dilution (of the base material in the overly weld). The technological tests of the hybrid (HLAW (laser + MAG)) surfacing process involved the use of steel grade 41Cr4 and filler metal grade LNM 307.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115848841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microstructure and Mechanical Properties of Welded Joints in Austenitic Steel TP347HFG after Operation TP347HFG奥氏体钢焊接接头的组织与力学性能
Biuletyn Instytutu Spawalnictwa Pub Date : 2020-12-01 DOI: 10.17729/EBIS.2020.6/7
K. Wojsyk, A. Merda, Klaudia Klimaszewska, P. Urbańczyk, G. Golański
{"title":"Microstructure and Mechanical Properties of Welded Joints in Austenitic Steel TP347HFG after Operation","authors":"K. Wojsyk, A. Merda, Klaudia Klimaszewska, P. Urbańczyk, G. Golański","doi":"10.17729/EBIS.2020.6/7","DOIUrl":"https://doi.org/10.17729/EBIS.2020.6/7","url":null,"abstract":"The analysis involved a similar welded joint made of steel TP347HFG after operation at a temperature of 580°C. Tests revealed that the primary mechanisms responsible for the degradation of the microstructure in all areas of the joint subjected to analysis were precipitation processes within the grains and along the grain boundaries. The grain boundaries contained two morphologies forming a continuous lattice. Precipitation processes resulted in the high tensile strength of the joint and high hardness within the weld face area. After operation, the test joint was characterised by relatively high impact energy, which could be attributed to the fine-grained microstructure and the presence of numerous annealing twins.","PeriodicalId":184101,"journal":{"name":"Biuletyn Instytutu Spawalnictwa","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127288460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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