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CHARACTERIZATION OF MICROSTRUCTURE AND MECHANICAL PROPERTIES OF LASER-WELDED STAINLESS STEELS 激光焊接不锈钢的显微组织和力学性能表征
Metallurgy and Foundry Engineering Pub Date : 2016-01-01 DOI: 10.7494/mafe.2016.42.4.213
D. Koclęga, A. Radziszewska, S. Kąc, W. Zowczak, Aleksandra J Debowska, M. Jędrusik, P. Petrzak
{"title":"CHARACTERIZATION OF MICROSTRUCTURE AND MECHANICAL PROPERTIES OF LASER-WELDED STAINLESS STEELS","authors":"D. Koclęga, A. Radziszewska, S. Kąc, W. Zowczak, Aleksandra J Debowska, M. Jędrusik, P. Petrzak","doi":"10.7494/mafe.2016.42.4.213","DOIUrl":"https://doi.org/10.7494/mafe.2016.42.4.213","url":null,"abstract":"This work presents the laser welding of dissimilar X12CrCoWVNbN12-2-2 and X10CrNi18-10 steels. This system is of interest, as laser welding offers new flexibility in the joining of metals and laser welds (LWs) and are usually of high quality; they are obtained only after the optimization of process parameters. The aim of the work was to investigate the microstructure, chemical composition, and hardness changes of laser-welded steels. After laser welding, two zones were generated in the processed materials: a fusion zone and a heat-affected zone. Due to solidification, a refinement of the microstructure occurred in the fusion zone. Examinations of the chemical composition of particular melted areas showed the occurrence of Nb-rich precipitations. The laser welding of steels led to increased hardness in the fusion zone (about 240–530 HV0.3).","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"31 1","pages":"213"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83424989","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
COLLECTION AND RECYCLING OF SPENT NICKEL AND LITHIUM BATTERIES AND ACCUMULATORS IN POLAND 波兰废旧镍、锂电池和蓄电池的收集和回收
Metallurgy and Foundry Engineering Pub Date : 2016-01-01 DOI: 10.7494/MAFE.2016.42.2.127
E. Rudnik
{"title":"COLLECTION AND RECYCLING OF SPENT NICKEL AND LITHIUM BATTERIES AND ACCUMULATORS IN POLAND","authors":"E. Rudnik","doi":"10.7494/MAFE.2016.42.2.127","DOIUrl":"https://doi.org/10.7494/MAFE.2016.42.2.127","url":null,"abstract":"The European Union has established strict requirements for the recycling of spent batteries and accumulators. In Poland, this waste is currently recycled pyrometallurgically solely for Cd, Zn, Pb and ferronickel recovery. However, waste cells (Ni-Cd, Ni-MH, Li-ion) represent a source of strategic metals (Ni, Co, Li). This paper shows an analysis of the market and applications of nickel and Li-ion batteries as well as current state of domestic collection and recycling of spent cells.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"33 1","pages":"127"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74696700","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: 2
Hydrometallurgical methods of indium recovery from obsolete LCD and LED panels 废LCD及LED面板中铟的湿法冶金回收方法
Metallurgy and Foundry Engineering Pub Date : 2016-01-01 DOI: 10.7494/MAFE.2016.42.3.157
Patrícia Krištofová, E. Rudnik, A. Miškufová
{"title":"Hydrometallurgical methods of indium recovery from obsolete LCD and LED panels","authors":"Patrícia Krištofová, E. Rudnik, A. Miškufová","doi":"10.7494/MAFE.2016.42.3.157","DOIUrl":"https://doi.org/10.7494/MAFE.2016.42.3.157","url":null,"abstract":"The paper shows a review of the literature data on the possibilities of indium recovery from ITO layers of waste LCD and LED displays. A short characterization of indium, its compounds, resources, production and applications are presented. Structure and operation of  LCD displays were shown. Detailed analysis of ITO leaching, methods of indium(III) ions separation from the leachate solutions (SX, HoLLE, IX) as well as recovery of final products (precipitation, cementation, electrowinning) were discussed.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"28 1","pages":"157"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77047509","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: 10
Experimental study of the filling of thin-walled investment Castings in 17-4PH stainless steel 17-4PH不锈钢薄壁熔模铸件充型试验研究
Metallurgy and Foundry Engineering Pub Date : 2015-11-18 DOI: 10.7494/MAFE.2015.41.2.85
M. Raza, R. Svenningsson, M. Irwin
{"title":"Experimental study of the filling of thin-walled investment Castings in 17-4PH stainless steel","authors":"M. Raza, R. Svenningsson, M. Irwin","doi":"10.7494/MAFE.2015.41.2.85","DOIUrl":"https://doi.org/10.7494/MAFE.2015.41.2.85","url":null,"abstract":"The global requirements on lower fuel consumption and emissions are increasing the demand for lowering the weight of cast components. Reducing the wall thickness of cast components is one way of achieving this. The aim of this work was to investigate castability of 17-4PH stainless steel in thin-walled test geometries (less than 2mm). The casting trials were performed to investigate the fluidity as a function of casting temperature, mold preheat temperature and filling systems in thin-walled sections. It was observed that fluidityin a top-gated configuration is strongly affected by casting temperature, however, effect of mold pre heat temperature on fluidity was not significant. On the other hand, castings made in bottom-gated configuration were more stable and fluidity was not significantly affected by variation in casting temperature and mold preheat temperature. Less porosityand flow-related defects were observed in the bottom-gated system as compared to top-gated system.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"21 43","pages":"85-85"},"PeriodicalIF":0.0,"publicationDate":"2015-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91418545","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: 7
Analysis of selected technological properties of green sands with starch-based additives 淀粉基添加剂对绿砂工艺性能的选择分析
Metallurgy and Foundry Engineering Pub Date : 2015-11-18 DOI: 10.7494/MAFE.2015.41.2.65
D. Drożyński, Ż. Kurleto, K. Kaczmarska, B. Grabowska
{"title":"Analysis of selected technological properties of green sands with starch-based additives","authors":"D. Drożyński, Ż. Kurleto, K. Kaczmarska, B. Grabowska","doi":"10.7494/MAFE.2015.41.2.65","DOIUrl":"https://doi.org/10.7494/MAFE.2015.41.2.65","url":null,"abstract":"The paper presents the results of determination the effect of addition native starch and mineral-starch mixes on selected technological properties of sands. Study was carried out on permeability, compressive strength and wear resistance of molding. Green sand with bentonite and silica sand was compared with green sand with addition Superior Standard native starch or addition of mineral-starch composition in form of binder Albertine F/1. The main difference in applied starch materials is characteristic property of native starch, which is un-soluble in cold water, so in this case it was difficult to bond water added to the moulding sand during mixing of ingredients. However Albertine F/1 starch-based binder is mixture of starch and aluminosilicates, whereby the bonding of water added into moulding sand during ingredients mixing is more efficient.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"37 1","pages":"65"},"PeriodicalIF":0.0,"publicationDate":"2015-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78910363","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: 4
Application of thermal analysis to study composite materials 热分析在复合材料研究中的应用
Metallurgy and Foundry Engineering Pub Date : 2015-11-18 DOI: 10.7494/MAFE.2015.41.2.71
I. Sulima, M. Homa, P. Malczewski
{"title":"Application of thermal analysis to study composite materials","authors":"I. Sulima, M. Homa, P. Malczewski","doi":"10.7494/MAFE.2015.41.2.71","DOIUrl":"https://doi.org/10.7494/MAFE.2015.41.2.71","url":null,"abstract":"The results of corrosion studies of composite materials obtained by two state-of-the –art methods of powder metallurgy are presented in the article. The main goal of the studies was determination of high-temperature corrosion resistance of steel-matrix composites reinforced with 8 vol.% TiB 2 . Thermogravimetric analyses were conducted at 1100oC in air in 24 h cycle. Microstructure of the composited after thermogravimetric studies was observed at scanning electron microscope.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"117 1","pages":"71"},"PeriodicalIF":0.0,"publicationDate":"2015-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75538443","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
Computer simulation of lamellar microstructure 层状微观结构的计算机模拟
Metallurgy and Foundry Engineering Pub Date : 2015-11-08 DOI: 10.7494/MAFE.2015.41.4.161
A. Czarski, P. Matusiewicz
{"title":"Computer simulation of lamellar microstructure","authors":"A. Czarski, P. Matusiewicz","doi":"10.7494/MAFE.2015.41.4.161","DOIUrl":"https://doi.org/10.7494/MAFE.2015.41.4.161","url":null,"abstract":"Other than granular and dispersive microstructures, the lamellar microstructure is one of the most-frequently observed traits in the case of metal alloys. This work defines a geometrical model of a lamellar microstructure and presents its stereological relationships as well as our computersimulation results for this model. The applied methodology creates – at least from a theoretical point of view – a series of interesting possibilities in the field of quantitative description of this type of microstructure and examinations of the properties of the parameter estimators that quantitatively characterize it.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"50 1","pages":"161"},"PeriodicalIF":0.0,"publicationDate":"2015-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85173421","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
Mechanical properties and corrosion resistance of cast NiAl alloys with the addition of Ti 添加Ti的NiAl合金的力学性能和耐蚀性
Metallurgy and Foundry Engineering Pub Date : 2015-07-10 DOI: 10.7494/MAFE.2015.41.1.29
P. Hyjek, I. Sulima, P. Malczewski
{"title":"Mechanical properties and corrosion resistance of cast NiAl alloys with the addition of Ti","authors":"P. Hyjek, I. Sulima, P. Malczewski","doi":"10.7494/MAFE.2015.41.1.29","DOIUrl":"https://doi.org/10.7494/MAFE.2015.41.1.29","url":null,"abstract":"Results of compression and corrosion resistance tests of NiAl alloys with 1.0 and 2.0 wt.% of titanium are described. The compression tests conducted in a wide range of temperature and strain rate showed that increase of titanium content causes increase of brittleness at room temperature, while at higher temperatures an increase of hardness and strength is observed. The analysis of electrochemical corrosion resistance showed that the alloys containing Ti are characterized by considerable resistance to sulfuric acid VI, because the emerging titanium oxide prevents active solubilizing of the alloy. Besides, microstructure observations performed at various levels of deformation which allowed to identify mechanisms responsible for fracture of the studied alloys.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"7 1","pages":"29"},"PeriodicalIF":0.0,"publicationDate":"2015-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82375579","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: 4
Electrochemical codeposition of molybdenum and selenium 钼和硒的电化学共沉积
Metallurgy and Foundry Engineering Pub Date : 2015-07-10 DOI: 10.7494/MAFE.2015.41.1.7
R. Kowalik, D. Kutyła, K. Mech, M. Wróbel, T. Tokarski, P. Żabiński
{"title":"Electrochemical codeposition of molybdenum and selenium","authors":"R. Kowalik, D. Kutyła, K. Mech, M. Wróbel, T. Tokarski, P. Żabiński","doi":"10.7494/MAFE.2015.41.1.7","DOIUrl":"https://doi.org/10.7494/MAFE.2015.41.1.7","url":null,"abstract":"The electrodeposition of the Mo-Se thin films from sulfate solution containing Na 2 MoO 4 and H 2 SeO 3 was studied. The process of deposition were conducted under potentiostatic condition on copper electrode. The effect of different potential, pH and time of deposition were examined. The deposits were characterized by X-ray diffraction, X-ray fluorescence and scanning electron microscopy.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"1 1","pages":"7"},"PeriodicalIF":0.0,"publicationDate":"2015-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72556661","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
Computer modeling for the visualization and geometric reconstruction of artefacts from the casting workshop in Grzybiany 计算机建模的可视化和几何重建的人工制品从铸造车间在Grzybiany
Metallurgy and Foundry Engineering Pub Date : 2015-07-10 DOI: 10.7494/MAFE.2015.41.1.45
A. Garbacz-Klempka, S. Rzadkosz, T. Stolarczyk, J. Kozana, M. Piękoś, Z. Kwak, M. Tenerowicz
{"title":"Computer modeling for the visualization and geometric reconstruction of artefacts from the casting workshop in Grzybiany","authors":"A. Garbacz-Klempka, S. Rzadkosz, T. Stolarczyk, J. Kozana, M. Piękoś, Z. Kwak, M. Tenerowicz","doi":"10.7494/MAFE.2015.41.1.45","DOIUrl":"https://doi.org/10.7494/MAFE.2015.41.1.45","url":null,"abstract":"The casting workshop in Grzybiany is one of the most important archaeological sites in regards to casting technology from the Bronze and Early Iron Ages. During the “Grzybiany. Osada nadjeziorna z epoki brązu i zelaza” [Grzybiany. Lakeside settlement from the Bronze and Early Iron Ages] research, the structure of casting moulds was analyzed as well as the chemical composition and microstructure of one of the more-interesting metal artefacts found within the workshop. Based on this, geometric visualization was performed with the help of computer-modeling methods. For scientific, experimental, and educational purposes, reconstruction of a zoomorphic pendant was performed using the lost-wax method. Wax models injected into a matrix were used, along with fired ceramic (gypsum) moulds and a specially prepared modeling alloy that corresponds to the original material. In this way, a true replica of the original was obtained: technologically, structurally and chemically. Studies of production technology of the casting workshop dated back to the Bronze and Early Iron Age help to increase the knowledge of the mould-preparing technology and the alloys used. Modern tools and computer programs aid in the research of old technologies and help disseminate the results.","PeriodicalId":18751,"journal":{"name":"Metallurgy and Foundry Engineering","volume":"43 1","pages":"45"},"PeriodicalIF":0.0,"publicationDate":"2015-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84130169","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: 2
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