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Investigation of microstructure and corrosion resistance of AISI 304 stainless steel joint with ER308 and ERNiCr-3 filler metals by GTAW 用GTAW研究ER308和ERNiCr-3填充金属对AISI 304不锈钢接头的显微组织和耐蚀性
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.1051/metal/2020048
M. Jafarzadegan, F. Ahmadian, V. Salarvand, Souren Kashkooli
{"title":"Investigation of microstructure and corrosion resistance of AISI 304 stainless steel joint with ER308 and ERNiCr-3 filler metals by GTAW","authors":"M. Jafarzadegan, F. Ahmadian, V. Salarvand, Souren Kashkooli","doi":"10.1051/metal/2020048","DOIUrl":"https://doi.org/10.1051/metal/2020048","url":null,"abstract":"In this study, the effect of two different filler metals (ERNiCr-3 and ER308) on microstructure and corrosion resistance of gas tungsten arc welded AISI 304 has been investigated. The microstructure of the joints was investigated by optical and scanning electron microscope. The microhardness of samples was investigated to determine the mechanical properties of the welds. Also, the electrochemical corrosion resistance of the samples was studied by Tafel polarization and impedance analysis in 1 M hydrochloric acid. The results showed the niobium-rich carbides in the welded specimen by ERNiCr-3 filler, also this sample exhibited a higher hardness and corrosion resistance. The exchange current density and the polarization radius of the ERNiCr-3 filler metal were 0.069 mA and 244 Ω, and those of ER308 filler metal were 0.121 mA and 66 Ω, respectively. The higher hardness and corrosion resistance is attributed to the formation of hard niobium-rich carbides in the weld zone, which eliminates the formation of chromium carbides.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83737929","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
Tribological aspects of plasma nitrided layer in the case of a non-conventional treated steel for industrial gearings 在工业齿轮用非常规处理钢的情况下，等离子体氮化层的摩擦学方面
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.37904/metal.2020.3555
C. Papadatu
{"title":"Tribological aspects of plasma nitrided layer in the case of a non-conventional treated steel for industrial gearings","authors":"C. Papadatu","doi":"10.37904/metal.2020.3555","DOIUrl":"https://doi.org/10.37904/metal.2020.3555","url":null,"abstract":"Plasma nitriding applied after a non-conventional treatment in magnetic field to the steel used in industry, have been studied in this paper. It have been demonstrated that the energy of the magnetic field intervenes in the balance of the global power of the phase transformations in solid state altering the thermodynamics, kinetics and the mechanisms of processes, the structures and some properties of the steel. The samples have been tested using an Amsler stand for wear tests (dry friction) and the diffractometric analysis completed this study. The plasma nitriding plant used was named the INI 150, was made by the Institute of Radiation Physics and Technology in collaboration with the \"Electrotechnics\" Enterprise and the Nuclear Apparatus (ICEFIZ) from Romania and was destined for technological research, but can also be used for industrial nitriding of small pieces. INI 150 was based on the physical phenomenon of a double cathode at plasma (ion) nitriding. The paper is a review of my researches from the last years.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73187936","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 viscous behavior and potassium removal capacity of CaO–SiO2–8wt%MgO–17wt%Al2O3–2.5wt%BaO–K2O slag CaO-SiO2-8wt % MgO-17wt % Al2O3-2.5wt % BaO-K2O渣的黏性和除钾能力
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.1051/metal/2020013
Wen-guo Liu, Xiangdong Xing, H. Zuo
{"title":"The viscous behavior and potassium removal capacity of CaO–SiO2–8wt%MgO–17wt%Al2O3–2.5wt%BaO–K2O slag","authors":"Wen-guo Liu, Xiangdong Xing, H. Zuo","doi":"10.1051/metal/2020013","DOIUrl":"https://doi.org/10.1051/metal/2020013","url":null,"abstract":"The viscous behavior and potassium removal capacity of CaO–SiO2 –8wt%MgO–17wt%Al2 O3 –2.5wt%BaO–K2 O slag system with CaO/SiO2 of 1.07 were studied. The effect of K2 O content ranging from 0 to 5 wt% on the viscosity, slag structure, apparent activation energy and potassium removal rate of present slag were analyzed. The results showed that with increase of K2 O content in slag, the viscosity and apparent activation energy tended to increase. When adding K2 O into the present slag, K+ ion rather than Ba2+ could preferentially compensate [AlO4 ] tetrahedron and more complex network structures would be formed, leading to higher polymerization degree of slag. The potassium removal rate was related to the reduction degree of K+ by carbon, and with rising of temperature and increasing of K2 O content there was a decreasing trend for the potassium removal capacity of slag.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73353302","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: 3
Comparison of Mechanical properties of laser cladded WC and (TiW)C1-x in Nibased alloy coatings 激光熔覆WC和(TiW)C1-x镍基合金涂层力学性能的比较
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.37904/metal.2020.3574
M. Vostřák, J. Hajšman, M. Hruška, A. Keslová
{"title":"Comparison of Mechanical properties of laser cladded WC and (TiW)C1-x in Nibased alloy coatings","authors":"M. Vostřák, J. Hajšman, M. Hruška, A. Keslová","doi":"10.37904/metal.2020.3574","DOIUrl":"https://doi.org/10.37904/metal.2020.3574","url":null,"abstract":"","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73372322","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
Measurement of erosion state and refractory lining thickness of blast furnace hearth by using three-dimensional laser scanning method 用三维激光扫描法测量高炉炉底腐蚀状态和耐火衬厚度
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.1051/metal/2020085
Lei Zhang, Jianliang Zhang, K. Jiao, Jia Guoli, Jiangjiang Gong, Yang Xiaoting, Zhao Manxiang, Du Weibin
{"title":"Measurement of erosion state and refractory lining thickness of blast furnace hearth by using three-dimensional laser scanning method","authors":"Lei Zhang, Jianliang Zhang, K. Jiao, Jia Guoli, Jiangjiang Gong, Yang Xiaoting, Zhao Manxiang, Du Weibin","doi":"10.1051/metal/2020085","DOIUrl":"https://doi.org/10.1051/metal/2020085","url":null,"abstract":"The three-dimensional (3D) model of erosion state of blast furnace (BF) hearth was obtained by using 3D laser scanning method. The thickness of refractory lining can be measured anywhere and the erosion curves were extracted both in the circumferential and height directions to analyze the erosion characteristics. The results show that the most eroded positions located below 20# tuyere with an elevation of 7700 mm and below 24#–25# tuyere with an elevation of 8100 mm, the residual thickness here is only 295 mm. In the circumferential directions, the serious eroded areas located between every two tapholes while the taphole areas were protected well by the bonding material. In the height directions, the severe erosion areas located between the elevation of 7600 mm to 8200 mm. According to the calculation, the minimum depth to ensure the deadman floats in the hearth is 2581 mm, corresponding to the elevation of 7619 mm. It can be considered that during the blast furnace production process, the deadman has been sinking to the bottom of BF hearth and the erosion areas gradually formed at the root of deadman.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75253168","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: 9
Syntheisis of the ZrB2-SiC ultra-high temperature ceramic powder by plasma spheroidization 等离子体球化法制备ZrB2-SiC超高温陶瓷粉体
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.37904/metal.2020.3606
I. Goncharov, N. Razumov, N. Ozerskoi, A. Silin, T. Makhmutov, A. Kim, A. Popovich
{"title":"Syntheisis of the ZrB2-SiC ultra-high temperature ceramic powder by plasma spheroidization","authors":"I. Goncharov, N. Razumov, N. Ozerskoi, A. Silin, T. Makhmutov, A. Kim, A. Popovich","doi":"10.37904/metal.2020.3606","DOIUrl":"https://doi.org/10.37904/metal.2020.3606","url":null,"abstract":"The mixture of ZrB2 and SiC powders were used as a raw material. The powders were milled in a planetary ball mill, blended with polyvinyl alcohol, and sieved to 0-125 μm. After sieving, the powder was spheroidized in Tekna Tek 15 ICP plasma plant. During the spheroidization, the ceramic powder melts and form a compound, containing ZrB2-SiC and rapidly crystallized forming dense spherical shaped powders, suitable for additive manufacturing or sintering techniques.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81485376","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
MATERIAL ANALYSIS OF THE ENGINE PART FOR THE HISTORICAL MOTORCYCLE JAWA 250, 1939 历史摩托车java 250发动机零件材料分析，1939
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.37904/metal.2020.3594
Lukáš Kudrna, P. Váňová, J. Malcharcziková, T. Kubín
{"title":"MATERIAL ANALYSIS OF THE ENGINE PART FOR THE HISTORICAL MOTORCYCLE JAWA 250, 1939","authors":"Lukáš Kudrna, P. Váňová, J. Malcharcziková, T. Kubín","doi":"10.37904/metal.2020.3594","DOIUrl":"https://doi.org/10.37904/metal.2020.3594","url":null,"abstract":"This article deals with the chemical composition of the engine part mounted on the historical motorcycle JAWA 250 from 1939. Before the company started making motorcycles, it was engaged in the production of firearms. It was an arms industry, and this also entailed high demands on the quality of the products, which can be observed not only on aluminum alloy castings but also on other parts of the motorcycle. The part under review is made of aluminum alloy and serves as a holder for the motorcycle ignition mechanism. It is one of many parts of the engine. There are several reasons for material analysis. The motorcycle was restored, and it was important to find out what material our ancestors used to produce the parts of the motorcycle. The measurement result can be used to produce a new part if necessary, which will be possible to replace either the missing part or the part in an already unrepairable state. The issues concerning the production of spare parts for historical means of transport or technical monuments are generally very extensive. Production processes and materials must be observed. For this reason, material analysis is of great importance and in the future, we will not be able to avoid it in the process of cultural technical monuments restoration. The information found may assist restorers to manufacture or repair of damaged parts. There were more types of JAWA motorcycles produced in the interwar period and the results of this research can be also applied in general.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82466218","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
Distortion modelling of steel 316l symmetric base plate for additive manufacturing process and experimental calibration 316l钢对称底板增材制造过程畸变建模及实验标定
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.37904/metal.2020.3565
A. Kiran, J. Hodek, J. Vavřík, O. Lukas, M. Urbánek
{"title":"Distortion modelling of steel 316l symmetric base plate for additive manufacturing process and experimental calibration","authors":"A. Kiran, J. Hodek, J. Vavřík, O. Lukas, M. Urbánek","doi":"10.37904/metal.2020.3565","DOIUrl":"https://doi.org/10.37904/metal.2020.3565","url":null,"abstract":"Distortion in additively manufactured metal parts is of interest to keep structural reliability. It is important to control the dimensional tolerance of the additively manufactured structure. This does not only reduce the cost of manufacturing, but also improves the quality of the manufactured parts. Distortion in additive manufacturing (AM) is inevitable due to localized heating, large thermal gradient, thermal cycles, cooling rate, process parameters, etc. Base plate distortion during the AM process was studied in detail. Base plate structural deformation was measured using a 3D scanner. The surface geometry of the base plate reveals a large distortion beneath the deposited material due to the temperature gradient. Thermal history and distortion during the AM process were classified into three stages. Mitigation methods for the respective stage was discussed. A Finite Element Model (FEM) was built and a numerical calculation for thermal and distortion was validated to experimental results.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77190959","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: 5
STUDY OF THE STEEL HEAT TREATMENT MODE FOR THE PURPOSE OF INCREASING THE EFFICIENCY OF ULTRASONIC CONTROL 研究以提高超声波控制效率为目的的钢的热处理方式
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.37904/metal.2020.3518
A. Kurbatov, J. Averina, E. Kuzin, Victoria Tsevkova, N. Moiseeva
{"title":"STUDY OF THE STEEL HEAT TREATMENT MODE FOR THE PURPOSE OF INCREASING THE EFFICIENCY OF ULTRASONIC CONTROL","authors":"A. Kurbatov, J. Averina, E. Kuzin, Victoria Tsevkova, N. Moiseeva","doi":"10.37904/metal.2020.3518","DOIUrl":"https://doi.org/10.37904/metal.2020.3518","url":null,"abstract":"More and more attention is being paid to non-destructive testing of connecting elements. Currently, ultrasound control is widely used. A prerequisite for an effective and reliable process of ultrasonic testing is the grain size of the analysed metal. One option for influencing non-grain size of a steel part is to vary the heat treatment and tempering conditions. As part of the study, an assessment was made of the heat treatment modes of steel parts for grain size. It has been established that by changing the heat treatment and tempering regime it is possible to obtain grain with a size of 3-5 points. The optimal mode of the heat treatment process was selected, which allows to obtain the minimum grain size of 4-5 balls that is acceptable for ultrasonic testing.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90533209","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
Determination of a coefficient of thermal expansion by machine learning 用机器学习确定热膨胀系数
Revue De Metallurgie-cahiers D Informations Techniques Pub Date : 2020-01-01 DOI: 10.37904/metal.2020.3462
Mario Machů, Ľ. Drozdová, B. Smetana, J. Růžička, S. Zlá, S. Sorokina
{"title":"Determination of a coefficient of thermal expansion by machine learning","authors":"Mario Machů, Ľ. Drozdová, B. Smetana, J. Růžička, S. Zlá, S. Sorokina","doi":"10.37904/metal.2020.3462","DOIUrl":"https://doi.org/10.37904/metal.2020.3462","url":null,"abstract":"Objective of this work is to model the thermal expansion coefficients of selected steel grade and compare results with those measured by TMA method. Coefficient of thermal expansion is described as a function of steel composition (C, Mn, P, S, Si, Cr, Ni, Mo) and temperature.Experimental values are described and compared with model. Correlation analysis of these data sets is done. Presented model is based on using artificial neural network and represents a preliminary test of method capability to be used for such problems class – for predicting of thermophysical properties depending on composition and temperatre.","PeriodicalId":21337,"journal":{"name":"Revue De Metallurgie-cahiers D Informations Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87100263","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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