Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3516
Š. Mikmeková, O. Ambrož, Veronika Hegrová, T. Aoyama
The paper aims to demonstrate a modern scanning electron microscope (SEM) as a powerful tool for visualization of the secondary phases in TRIP steel. The TRIP steel specimens prepared by various metallographic techniques were imaged by the SEM and the secondary phases presence was confirmed by an electron back-scattered diffraction (EBSD) technique. The chemical polishing by 5 % HF in H 2 O 2 for 10 seconds results in selective etching for each individual phase, as confirmed by an atomic force microscopy (AFM) and hybrid AFM-in-SEM techniques. The phases are easily distinguishable in the SEM micrographs created by the low energy high take-off angle signal electrons. The proposed sample preparation technique together with special SEM imaging conditions enables us accurate analysis of distribution of secondary phases within the TRIP steel matrix and moreover, the retained austenite is distinguishable from the martensite phase.
{"title":"study of secondary phases in trip steel by advanced SEM and AFM Techniques","authors":"Š. Mikmeková, O. Ambrož, Veronika Hegrová, T. Aoyama","doi":"10.37904/metal.2020.3516","DOIUrl":"https://doi.org/10.37904/metal.2020.3516","url":null,"abstract":"The paper aims to demonstrate a modern scanning electron microscope (SEM) as a powerful tool for visualization of the secondary phases in TRIP steel. The TRIP steel specimens prepared by various metallographic techniques were imaged by the SEM and the secondary phases presence was confirmed by an electron back-scattered diffraction (EBSD) technique. The chemical polishing by 5 % HF in H 2 O 2 for 10 seconds results in selective etching for each individual phase, as confirmed by an atomic force microscopy (AFM) and hybrid AFM-in-SEM techniques. The phases are easily distinguishable in the SEM micrographs created by the low energy high take-off angle signal electrons. The proposed sample preparation technique together with special SEM imaging conditions enables us accurate analysis of distribution of secondary phases within the TRIP steel matrix and moreover, the retained austenite is distinguishable from the martensite phase.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90256146","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3504
M. Zamozdra, S. Ganin, V. Tsemenko
In the present work, obtained billets from powder high-speed steel by the HIP method. Samples were tested at various speeds and degrees of hot plastic deformation, which are modeled on the Gleeble-3800 complex. The total number of samples is 8. The generalized experimental results cover almost the entire range of high-speed deformation modes of hot rolling mills and can be used to develop technological processes for metal forming when producing blanks for cutting tools in a wide size range.
{"title":"PHYSICAL MODELING OF HOT PLASTIC DEFORMATION PROCESS OF POWDER HIGH-SPEED STEEL ON THE GLEEBLE 3800 COMPLEX","authors":"M. Zamozdra, S. Ganin, V. Tsemenko","doi":"10.37904/metal.2020.3504","DOIUrl":"https://doi.org/10.37904/metal.2020.3504","url":null,"abstract":"In the present work, obtained billets from powder high-speed steel by the HIP method. Samples were tested at various speeds and degrees of hot plastic deformation, which are modeled on the Gleeble-3800 complex. The total number of samples is 8. The generalized experimental results cover almost the entire range of high-speed deformation modes of hot rolling mills and can be used to develop technological processes for metal forming when producing blanks for cutting tools in a wide size range.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89176127","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3647
M. Ingaldi, M. Mazur
Appropriate maintenance of machinery and production equipment allows for smooth production, eliminates downtime related to failures, improves work safety and improves the productivity of an enterprise. Well-functioning machines allow for production of high-quality products. This is an important topic especially in enterprises of the metallurgical industry due to the specificity. They usually work in system 24/7, what is more, machines and devices are used in the most effective way possible. In addition, an important factor is the ability to produce products with appropriate quality parameters, because many of these products are used, e.g. in various machines, vehicles, constructions or buildings. The purpose of the paper was to assess the production devices of one of the rolling mills in Poland in terms of its condition and use. Chosen technical and technological indicators typical of metallurgical enterprises were used for this assessment. This research covered 5 consecutive years. Slight fluctuations in the values of the research indicators were noted, which is why the machine breaks were additionally examined.
{"title":"ASSESSMENT OF PRODUCTION EQUIPMENT OF chosen rolling mill IN POLAND","authors":"M. Ingaldi, M. Mazur","doi":"10.37904/metal.2020.3647","DOIUrl":"https://doi.org/10.37904/metal.2020.3647","url":null,"abstract":"Appropriate maintenance of machinery and production equipment allows for smooth production, eliminates downtime related to failures, improves work safety and improves the productivity of an enterprise. Well-functioning machines allow for production of high-quality products. This is an important topic especially in enterprises of the metallurgical industry due to the specificity. They usually work in system 24/7, what is more, machines and devices are used in the most effective way possible. In addition, an important factor is the ability to produce products with appropriate quality parameters, because many of these products are used, e.g. in various machines, vehicles, constructions or buildings. The purpose of the paper was to assess the production devices of one of the rolling mills in Poland in terms of its condition and use. Chosen technical and technological indicators typical of metallurgical enterprises were used for this assessment. This research covered 5 consecutive years. Slight fluctuations in the values of the research indicators were noted, which is why the machine breaks were additionally examined.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91110109","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3529
M. Kolaříková, L. Kolařík, V. Králík, Jan Sova
During resistance welding, the electrode tips are significantly worn. The amount of wear is strongly dependent on the welded material, the surface treatment of the welded sheet, the thickness of the surface treatment, the welding parameters and, last but not least, especially on the number of performed welds. The paper describes the change in topography (RedLux optical profilometer) and roughness (Mitutoyo roughness tester) of the contact surface of the electrode tip during the wear process (thus depending on the number of welds performed). It also deals with the change of welding parameters due to the change in the size of the actual contact area. Deep drawing steel DC05 + ZE (EN 10152) electrolytically coated with Zn (with a total thickness h = 0.7 mm and a zinc coating thickness of 4.5 μm) was used as the experimental material. The roughness of the contact surface increases evenly. It reaches a maximum after about 100 welds and then decreases. The welding current also increases evenly. It is kept constant between 200 and 350 welds and then grows again.
在电阻焊过程中，电极尖端磨损明显。磨损量在很大程度上取决于焊接材料、焊接板的表面处理、表面处理的厚度、焊接参数，最后但并非最不重要的是，特别是与进行的焊接次数有关。本文描述了在磨损过程中电极尖端接触面的形貌(RedLux光学轮廓仪)和粗糙度(Mitutoyo粗糙度测试仪)的变化(因此取决于所进行的焊接数量)。同时还处理了由于实际接触面积大小的变化而引起的焊接参数的变化。实验材料选用电镀锌深冲钢DC05 + ZE (EN 10152)(总厚度h = 0.7 mm，镀锌层厚度为4.5 μm)。接触面粗糙度均匀增加。在约100次焊接后达到最大值，然后减小。焊接电流也均匀增大。它在200到350个焊缝之间保持恒定，然后再次增长。
{"title":"The topography change of electrode tips at resistance welding of deep drawn steel DC05+ZE","authors":"M. Kolaříková, L. Kolařík, V. Králík, Jan Sova","doi":"10.37904/metal.2020.3529","DOIUrl":"https://doi.org/10.37904/metal.2020.3529","url":null,"abstract":"During resistance welding, the electrode tips are significantly worn. The amount of wear is strongly dependent on the welded material, the surface treatment of the welded sheet, the thickness of the surface treatment, the welding parameters and, last but not least, especially on the number of performed welds. The paper describes the change in topography (RedLux optical profilometer) and roughness (Mitutoyo roughness tester) of the contact surface of the electrode tip during the wear process (thus depending on the number of welds performed). It also deals with the change of welding parameters due to the change in the size of the actual contact area. Deep drawing steel DC05 + ZE (EN 10152) electrolytically coated with Zn (with a total thickness h = 0.7 mm and a zinc coating thickness of 4.5 μm) was used as the experimental material. The roughness of the contact surface increases evenly. It reaches a maximum after about 100 welds and then decreases. The welding current also increases evenly. It is kept constant between 200 and 350 welds and then grows again.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90783712","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3616
Aleattin Kulakli, F. E. Şeşen, Talip Çitrak, Tuba Özeren
CuAl10Ni5Fe4 aluminum bronzes have better corrosion resistance and higher wear resistance at high temperatures compared to other copper alloys. In this study, the effect of cobalt (Co) and titanium (Ti), which were added in the amount of 0.5 % as a grain refiner, on the properties of nickel-containing aluminum bronze (CuAl10Ni5Fe4 alloy) was investigated in cast and forged conditions. The alloys were produced by melting scrap in a metal induction furnace, pouring molten metal into a mould made of steel and hot forging processes. In order to examine the effect of grain refiners on the phase structure of the alloys, microstructural examination was also conducted. Microhardness and mechanical properties were measured using the relevant test devices. Potentiodynamic corrosion tests were performed in a neutral NaCl solution to determine the corrosion rates of the forged alloys. Furthermore, wear behaviour of alloys under a 40 N load was investigated. It has emerged from the general results that cobalt and titanium elements are highly effective in grain size reduction, leading to an improvement in the mechanical properties, corrosion and wear resistance of the CuAl10Ni5Fe4 alloy.
{"title":"EFFECT OF COBALT AND TITANIUM ADDITIONS ON CORROSION AND WEAR RESISTANCE OF NICKEL CONTAINING ALUMINUM BRONZES","authors":"Aleattin Kulakli, F. E. Şeşen, Talip Çitrak, Tuba Özeren","doi":"10.37904/metal.2020.3616","DOIUrl":"https://doi.org/10.37904/metal.2020.3616","url":null,"abstract":"CuAl10Ni5Fe4 aluminum bronzes have better corrosion resistance and higher wear resistance at high temperatures compared to other copper alloys. In this study, the effect of cobalt (Co) and titanium (Ti), which were added in the amount of 0.5 % as a grain refiner, on the properties of nickel-containing aluminum bronze (CuAl10Ni5Fe4 alloy) was investigated in cast and forged conditions. The alloys were produced by melting scrap in a metal induction furnace, pouring molten metal into a mould made of steel and hot forging processes. In order to examine the effect of grain refiners on the phase structure of the alloys, microstructural examination was also conducted. Microhardness and mechanical properties were measured using the relevant test devices. Potentiodynamic corrosion tests were performed in a neutral NaCl solution to determine the corrosion rates of the forged alloys. Furthermore, wear behaviour of alloys under a 40 N load was investigated. It has emerged from the general results that cobalt and titanium elements are highly effective in grain size reduction, leading to an improvement in the mechanical properties, corrosion and wear resistance of the CuAl10Ni5Fe4 alloy.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89171519","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3566
O. Maksimova, V. Smirnov, S. Osipov, E. Menshikov, A. Maksimov, V. I. Egorov, A. Trifanova, Aleksander Baidzhanov, N. Osipova
To describe a surface morphology of textured polymer coatings, the model of polymer chains attached to spherical granules was developed. By means of the model, we revealed the influence of coating density on its surface morphology. Diffuse reflection coefficient was calculated for polymer coatings with different morphologies.
{"title":"STUDYING THE SELF-ORGANIZATION OF MACROMOLECULES ON THE SURFACE OF TEXTURED POLYMER COATING OF METAL SHEET","authors":"O. Maksimova, V. Smirnov, S. Osipov, E. Menshikov, A. Maksimov, V. I. Egorov, A. Trifanova, Aleksander Baidzhanov, N. Osipova","doi":"10.37904/metal.2020.3566","DOIUrl":"https://doi.org/10.37904/metal.2020.3566","url":null,"abstract":"To describe a surface morphology of textured polymer coatings, the model of polymer chains attached to spherical granules was developed. By means of the model, we revealed the influence of coating density on its surface morphology. Diffuse reflection coefficient was calculated for polymer coatings with different morphologies.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75216477","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3655
M. Jagusiak-Kocik
In the paper customer preferences regarding copper wires were determined, special attention to the technical characteristics of wires were focused, that would meet customer expectations. To build a quality house, information from direct production employees as well as technologists and constructors were used. The application of the QFD method allowed of rendition of consumer requirements (customer voice) into technological parameters.
{"title":"Advantages and limitations of using the QFD method in the production of copper PRODUCTS – CASE study","authors":"M. Jagusiak-Kocik","doi":"10.37904/metal.2020.3655","DOIUrl":"https://doi.org/10.37904/metal.2020.3655","url":null,"abstract":"In the paper customer preferences regarding copper wires were determined, special attention to the technical characteristics of wires were focused, that would meet customer expectations. To build a quality house, information from direct production employees as well as technologists and constructors were used. The application of the QFD method allowed of rendition of consumer requirements (customer voice) into technological parameters.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75452625","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3523
B. Behrens, K. Brunotte, H. Wester, E. Stockburger
Due to their high tensile strengths increasing the crashworthiness of the vehicles, ultra-high strength steels are increasingly used in the automotive industry, for example in components like B-pillars or tunnel. 22MnB5 is a premier candidate for this cause, since it can be press-hardened and phase-transformed into the martensitic phase, resulting in high hardness and tensile strength. However, complications can arise in the assembly of press-hardened components since conventional mechanical joining processes have their limitations due to high forces required for joining press-hardened steels, especially in multi-sheet layers. Therefore, this study focuses on the determination of an optimum process window to influence the 22MnB5 microstructure thermo-mechanically during press hardening, causing a local softening. This so-called deformation-induced ferrite improves ductility at the desired locations to ease the mechanical joining operation in the assembly. Investigations are performed on a forming dilatometer varying the cooling rate, the introduced amount of plastic strain and the forming temperature along with metallographic as well as microhardness measurements. Based on the laboratory tests, a process window of the deformation induced ferrite is derived for an application in a forming press.
{"title":"INVESTIGATION OF THE PROCESS WINDOW FOR DEFORMATION INDUCED FERRITE TO IMPROVE THE JOINABILITY OF PRESS-HARDENED COMPONENTS","authors":"B. Behrens, K. Brunotte, H. Wester, E. Stockburger","doi":"10.37904/metal.2020.3523","DOIUrl":"https://doi.org/10.37904/metal.2020.3523","url":null,"abstract":"Due to their high tensile strengths increasing the crashworthiness of the vehicles, ultra-high strength steels are increasingly used in the automotive industry, for example in components like B-pillars or tunnel. 22MnB5 is a premier candidate for this cause, since it can be press-hardened and phase-transformed into the martensitic phase, resulting in high hardness and tensile strength. However, complications can arise in the assembly of press-hardened components since conventional mechanical joining processes have their limitations due to high forces required for joining press-hardened steels, especially in multi-sheet layers. Therefore, this study focuses on the determination of an optimum process window to influence the 22MnB5 microstructure thermo-mechanically during press hardening, causing a local softening. This so-called deformation-induced ferrite improves ductility at the desired locations to ease the mechanical joining operation in the assembly. Investigations are performed on a forming dilatometer varying the cooling rate, the introduced amount of plastic strain and the forming temperature along with metallographic as well as microhardness measurements. Based on the laboratory tests, a process window of the deformation induced ferrite is derived for an application in a forming press.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"449 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76058006","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3639
Tomáš Kutáč, Josef Kutáč, E. Švecová
This article explores the options for automating the process involved in shipping metallurgical products. The shipping process usually begins with the logistics team entering a request for shipping into the information system after production is complete. The team then searches for a contracted transport company, selects the least expensive from the available options, creates an order in the system, contacts the selected company, and before commencing with shipment, enters the vehicle and driver information into the system. Under the desired solution, this entire process would be automated with a web application, with only the driver and vehicle information being entered by the transport company.
{"title":"AUTOMATION OF THE SHIPPING PROCESS OF METALLURGICAL PRODUCTS","authors":"Tomáš Kutáč, Josef Kutáč, E. Švecová","doi":"10.37904/metal.2020.3639","DOIUrl":"https://doi.org/10.37904/metal.2020.3639","url":null,"abstract":"This article explores the options for automating the process involved in shipping metallurgical products. The shipping process usually begins with the logistics team entering a request for shipping into the information system after production is complete. The team then searches for a contracted transport company, selects the least expensive from the available options, creates an order in the system, contacts the selected company, and before commencing with shipment, enters the vehicle and driver information into the system. Under the desired solution, this entire process would be automated with a web application, with only the driver and vehicle information being entered by the transport company.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82111618","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}
Pub Date : 2020-01-01DOI: 10.37904/metal.2020.3550
M. Šimonová, A. Abrashov, N. Grigoryan, T. Vagramyan, V. Men'shikov
The disadvantage of magnesium alloys is their low corrosion resistance due to high electronegativity. One of the most effective methods to improve the corrosion resistance of magnesium alloys is to form a conversion adhesive coating on their surface, followed by applying paintwork materials. Chromatic coatings are widely used as adhesion layers under the paintwork before staining magnesium and its alloys. In recent years, in world practice, as an alternative to chromate layers on magnesium and its alloys, nanoscale conversion titanand/or zirconiumcontaining, and cerium-containing adhesive coatings have been used. The present work is devoted to the development of the technology for producing these coatings. It has been established that the developed passivating coatings based on the AZ31B magnesium alloy are comparable with chromate coatings in terms of corrosion resistance and protective ability. It has been established that coatings with developed adhesive sublayers have a higher adhesion strength to the base compared to coatings with chromate adhesive sublayer.
{"title":"DEVELOPMENT OF CHROMATE-FREE PASSIVATION PROCESSES FOR MAGNESIUM ALLOY AZ31B","authors":"M. Šimonová, A. Abrashov, N. Grigoryan, T. Vagramyan, V. Men'shikov","doi":"10.37904/metal.2020.3550","DOIUrl":"https://doi.org/10.37904/metal.2020.3550","url":null,"abstract":"The disadvantage of magnesium alloys is their low corrosion resistance due to high electronegativity. One of the most effective methods to improve the corrosion resistance of magnesium alloys is to form a conversion adhesive coating on their surface, followed by applying paintwork materials. Chromatic coatings are widely used as adhesion layers under the paintwork before staining magnesium and its alloys. In recent years, in world practice, as an alternative to chromate layers on magnesium and its alloys, nanoscale conversion titanand/or zirconiumcontaining, and cerium-containing adhesive coatings have been used. The present work is devoted to the development of the technology for producing these coatings. It has been established that the developed passivating coatings based on the AZ31B magnesium alloy are comparable with chromate coatings in terms of corrosion resistance and protective ability. It has been established that coatings with developed adhesive sublayers have a higher adhesion strength to the base compared to coatings with chromate adhesive sublayer.","PeriodicalId":18449,"journal":{"name":"METAL 2020 Conference Proeedings","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86183863","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}
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