Metallurgist最新文献_第4页

Dependence of corrosion resistance of structural pipe steels on the content of chromium and copper in oilfield calcium chloride media with different contents of aggressive ions 在含不同侵蚀离子的油田氯化钙介质中，结构管钢的耐蚀性与铬、铜含量的关系

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-01-07 DOI: 10.1007/s11015-024-01839-7

Andrey V. Amezhnov, Vitaly V. Naumenko, Irina A. Vasechkina

{"title":"Dependence of corrosion resistance of structural pipe steels on the content of chromium and copper in oilfield calcium chloride media with different contents of aggressive ions","authors":"Andrey V. Amezhnov, Vitaly V. Naumenko, Irina A. Vasechkina","doi":"10.1007/s11015-024-01839-7","DOIUrl":"10.1007/s11015-024-01839-7","url":null,"abstract":"<div><p>In this work, we investigate specimens of rolled structural pipe steels of industrial smelting at NLMK PJSC and those of laboratory smelting with various alloying systems (C–Mn–Si, C–Mn–Si–Cr, C–Mn–Si–Cr–Cu, and C–Mn–Si–Cr–Ni–Cu) subjected to dynamic corrosion tests in circulating calcium-chloride environments with different contents of aggressive ions, typical of the Khanty-Mansiysk region. The laboratory-smelted specimens with a chromium content of 0.6% in the absence of corrosive nonmetallic inclusions in the metal exhibited the lowest corrosion rate. The corrosion film was established to consist of three layers, different in appearance, structure, and chemical composition. Only one of the layers, referred to as “gray” by its color, is characterized by increased Cr and Cu contents, thereby being promising for application in the studied corrosive conditions. A mutual positive effect of Cr and Cu additives on the corrosion resistance of structural steels, exposed to the aggressive environments typical of the Khanty-Mansiysk region, is established.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"68 9","pages":"1281 - 1292"},"PeriodicalIF":0.8,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362137","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

Smelting of carbon alloy from iron ore of the Mene-Aldan ore occurrence in the Republic of Sakha (Yakutia) 萨哈共和国（雅库特）Mene-Aldan矿铁矿碳合金冶炼

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-01-07 DOI: 10.1007/s11015-024-01837-9

Petr P. Petrov, Ksenia V. Stepanova, Aleksandr D. Danilov

引用次数: 0

Study of the phase composition and metal speciation of aged Elektrotsink clinker 老化电熔熟料的物相组成及金属形态研究

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-01-07 DOI: 10.1007/s11015-024-01851-x

Vladimir G. Lobanov, Sergey M. Savelyev, Olga V. Nechvoglod, Olga B. Kolmachikhina, Olga Yu. Makovskaya

{"title":"Study of the phase composition and metal speciation of aged Elektrotsink clinker","authors":"Vladimir G. Lobanov, Sergey M. Savelyev, Olga V. Nechvoglod, Olga B. Kolmachikhina, Olga Yu. Makovskaya","doi":"10.1007/s11015-024-01851-x","DOIUrl":"10.1007/s11015-024-01851-x","url":null,"abstract":"<div><p>The depletion of natural reserves and the accumulation of large-tonnage waste containing significant quantities of non-ferrous and precious metals make the processing of man-made raw materials increasingly critical. Unlike ores and concentrates whose mineral structure is often well understood, data on the phase properties of metallurgical waste are quite scarce. This information can serve as a starting point for selecting a rational and effective technology for recovering precious elements from such waste. The processing of zinc clinker, which is one of the most large-tonnage non-ferrous wastes, is discussed using the Elektrotsink dumps as an example. Modern methods are used to study the material and phase compositions of an increment clinker sample and the speciation of precious elements such as copper, zinc, gold, and silver. The main phases (up to 40%) are simple and complex iron oxides and silicates and quartz SiO<sub>2</sub> (up to 15%). The total fraction of copper, zinc, and iron sulfides does not exceed 15%. The content of these elements does not exceed several percent. Particular attention is paid to the phases that determine the quantitative indicators of the concentration and hydrometallurgical processes in clinker processing: carbon (coke) and ferrites. The composition of clinker is highly heterogeneous, with intergrowths of different phases of variable composition. The content of precious elements in different clinker samples can vary widely.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"68 9","pages":"1389 - 1396"},"PeriodicalIF":0.8,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361663","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

Investigation of recycling technology for long mandrel bars of a continuous mill 某连续轧机长芯棒回收工艺研究

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-01-07 DOI: 10.1007/s11015-024-01850-y

I. T. Bilan, S. S. Belonozhko, A. S. Aleshenko, B. A. Romantsev, V. V. Afanasev

引用次数: 0

Modernization of roll calibration for the multipass radial shear rolling of cobalt-based alloy for medical applications 医疗用钴基合金多道次径向剪切轧制轧辊校准的现代化

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-01-07 DOI: 10.1007/s11015-024-01849-5

S. P. Galkin, N. A. Kuleshova, Alhaj A. A. Mahmoud, T. Yu. Kin, Yu. V. Gamin, D. S. Gizatulin, A. G. Padalko

{"title":"Modernization of roll calibration for the multipass radial shear rolling of cobalt-based alloy for medical applications","authors":"S. P. Galkin, N. A. Kuleshova, Alhaj A. A. Mahmoud, T. Yu. Kin, Yu. V. Gamin, D. S. Gizatulin, A. G. Padalko","doi":"10.1007/s11015-024-01849-5","DOIUrl":"10.1007/s11015-024-01849-5","url":null,"abstract":"<div><p>In the present work, we study the possibility of application of a special calibration of the working rolls containing calibration sections of limited length, in the process of radial shear rolling of alloys of the Co-Cr-Mo system and its influence on the parameters of the process and formation of the microstructure. The results of computer simulations demonstrate that the proposed calibration enables one to decrease the radial force applied to the roll by 12–25% and the drop of temperature in the deformation zone between the center and the surface by 5–7%. At the same time, we observe a decrease in the process cyclicity by 20% and the level of maximum compressive stresses increases by 10–15% as compared with the rolls of traditional configuration. The experimental testing of the proposed calibration revealed the stable process of rolling, and the bar obtained as a result did not have any external and internal defects. The analysis of microstructure revealed certain difference between the mean grain sizes at the front and rear ends of the bar, as well as in the central and subsurface areas caused by the different temperature and deformation conditions of rolling. The accumulated experimental data confirm the possibility of radial-shear rolling of high-strength alloys of the Co-Cr-Mo system with elongation ratio up to two even for a significant lowering of the surface temperature of the bar.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"68 9","pages":"1371 - 1381"},"PeriodicalIF":0.8,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362133","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

Experimental study of the influence of hot rolling on the structure, texture, and properties of a two-phase Ti–4.5Al–3Mo–V titanium alloy 热轧对Ti-4.5Al-3Mo-V两相钛合金组织、织构和性能影响的实验研究

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-01-07 DOI: 10.1007/s11015-024-01841-z

Yury N. Loginov, Anatoly G. Illarionov, Fedor V. Vodolazskiy, Danil L. Shvarts, Alexander Yu. Postyliakov, Maxim S. Karabanalov, Alexey A. Posokhin

引用次数: 0

Heat treatment of sintered powder steels. Austenitization in sintered powder steels 烧结粉末钢的热处理。烧结粉末钢中的奥氏体化

IF 0.8 4区材料科学

Metallurgist Pub Date : 2025-01-07 DOI: 10.1007/s11015-024-01844-w

M. S. Egorov, B. Ch. Meskhy, R. V. Egorova

引用次数: 0

Influence of zirconium and scandium on crack susceptibility during welding of Al–Ca–Zn–Mg alloys and mechanical properties of their welded joints 锆、钪对Al-Ca-Zn-Mg合金焊接裂纹敏感性及焊接接头力学性能的影响

IF 0.8 4区材料科学

Metallurgist Pub Date : 2024-12-20 DOI: 10.1007/s11015-024-01842-y

Viktor V. Ovchinnikov, Torgom K. Akopyan, Yakov M. Klochkov, Evgeny O. Protsenko

{"title":"Influence of zirconium and scandium on crack susceptibility during welding of Al–Ca–Zn–Mg alloys and mechanical properties of their welded joints","authors":"Viktor V. Ovchinnikov, Torgom K. Akopyan, Yakov M. Klochkov, Evgeny O. Protsenko","doi":"10.1007/s11015-024-01842-y","DOIUrl":"10.1007/s11015-024-01842-y","url":null,"abstract":"<div><p>The susceptibility of experimental alloys to cracking during fusion welding was evaluated by fishbone testing and the method developed at the Bauman Moscow State Technical University (BMSTU). In terms of weldability, the experimental Al–2Ca–2.5 Mg–0.4Mn (alloy 2B) and Al–1Ca–5.5 Mg–0.5Mn (alloy 1B) alloys are comparable to commercial AMg3 and 1915 aluminum alloys, respectively. Alloying of zirconium alloy (alloy 1) led to a decrease in resistance to cracking during welding. Additional alloying of alloy 2B with scandium had a beneficial effect on its susceptibility to crack formation at an arc current of 90 A. For alloy 4, an increase in the arc current of up to 95A was accompanied by a significant increase in the crack susceptibility coefficient of up to 75%, which indicates the need to use filler wire to obtain joints from this alloy during argon arc welding. Joint alloying of the studied alloys with zirconium and scandium contributes to the destruction of axial crystallite in the weld metal (when welding without filler wire) and the overall increase in the resistance of the weld metal to crack formation during welding.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"68 9","pages":"1313 - 1322"},"PeriodicalIF":0.8,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361731","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

Features of failure with cleavage after ctod tests of low-carbon microalloyed marine steel S460MLO during crack opening tests 低碳微合金船用钢S460MLO裂纹打开试验中ctod试验后的解理破坏特征

IF 0.8 4区材料科学

Metallurgist Pub Date : 2024-12-17 DOI: 10.1007/s11015-024-01821-3

E. A. Goli-Oglu, A. N. Filatov

引用次数: 0

Application of flux-cored wire with aluminothermic filler for arc welding of E40 steel at low temperatures 铝热填料药芯焊丝在E40钢低温电弧焊中的应用

IF 0.8 4区材料科学

Metallurgist Pub Date : 2024-12-17 DOI: 10.1007/s11015-024-01827-x

Anastasia V. Tkacheva, Evgeniy E. Abashkin

引用次数: 0