Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya最新文献

{"title":"Manufacturing technologies of steel seamless tubes for production of hard-to-recover hydrocarbons","authors":"A. Shiryaev, S. Chetverikov, S. G. Chikalov, I. Pyshmintsev, P. V. Krylov","doi":"10.17073/0368-0797-2018-11-866-875","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-11-866-875","url":null,"abstract":"The review contains main directions in the development of modern steelmaking, hot rolling technologies and heat treatment aimed to follow increased requirements to seamless tubes for production of oil and gas under severe conditions. New targets of PJSC “Gazprom” in development of new resources have determined new technical requirements to pipes for low temperature application, resistant to hydrogen sulfide and carbon dioxide corrosion. Basic metal science approaches are given to develop new chemical compositions of high quality steels containing minimum of sulfur, phosphorous and solute gases. Corresponding heat treatment routes are determined for formation of martensitic microstructure in full wall section during quenching with subsequent high tempering for required combination of high strength and ductility. It was shown that optimal combination of high strength and toughness at 60 °C below zero can be achieved by alloying of chromium-molybdenum steel containing about 0.25 wt. % of carbon with strong carbon forming elements such as vanadium and niobium. Sustainability of these steels to stress sulfide cracking was achieved through grain refinement with microalloying by molybdenum in concentrations corresponding to strength grades that gives high hardenability and retards tempering of martensite. New compositions of corrosion resistant martensitic 13 % chromium steel were carried out that was resulted in required resistance to carbon dioxide environments with improved low temperature toughness and high strength. The authors present results of reconstruction of steel making and hot rolling production lines at JSC “Volzhskii Pipe Plant” providing the required quality of new products from continuously cast steel billets to finished tubes.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83569805","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}

{"title":"Исследование комплексного влияния параметров выплавки рельсовой электростали на качество рельсовой продукции и технико-экономические показатели ее производства","authors":"А. А. Уманский, Л. В. Думова","doi":"10.17073/0368-0797-2018-11-876-883","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-11-876-883","url":null,"abstract":"Analysis of literature and production data has shown that despite the significant improvement in quality of domestic rail products, achieved in the last decade due to fundamental technical re-equipment of rail production, there is a problem of increased rejection of rails for surface defects. Based on studies of influence of rail steel chemical composition on quality of rails produced by «EVRAZ ZSMK», there was established a significant effect of increasing copper content in the range of 0.07 - 0.15 % and of sulfur - in the range of 0.006 - 0.011 % in E76KhF steel to increase rejection caused by rail surface defects. Mechanism of the influence of these elements concentration in rail steel on finished rails quality was revealed. Decisive influence of ratio of pig iron and scrap in metal charge on copper and sulfur content in rail steel was evidenced - higher rate of cast iron in metal charge within 20 - 50 % contributes to decrease of copper concentration and increase of sulfur content. To justify optimal composition of the charge for rail steel melting in regard to rail products quality and technical and economic indicators of production, study of the effect of cast iron (liquid and solid) to scrap ratio in metal charge on basic parameters of furnaces’ operation was conducted. As a result, it was found that with an increase in share of both liquid and solid iron in metal charge, there are linear decrease in specific electricity consumption, increase in specific oxygen consumption according to parabolic law and a linear decrease in manganese content in furnace output. The obtained dependences of melting duration on ratio of charge components in metal charge indicates presence of prominent minimum, when using liquid iron in the range of 35 - 40 %, and when using solid iron - in the range of 30 - 35 %. Based on the regression equations, statistical model was constructed for the influence of metal charge composition on technical and economic performance of the melt charge in rail steel smelting, in which optimization parameters are: total cost, depending on the metal stock composition and performance of the shop for suitable billets produced by continuous casting. Application of the obtained model allows to develop reasonable recommendations on the optimal proportion of iron in the metal for current level of prices for materials and energy used in electric smelting, taking into account changes in the shop productivity.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79066587","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}

{"title":"Изменение фазового состава сидеритов Бакальского месторождения при нагреве","authors":"O. Y. Sheshukov, M. A. Mikheenkov, E. A. Vyaznikova, A. S. Bykov, L. B. Vedmid","doi":"10.17073/0368-0797-2018-11-891-897","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-11-891-897","url":null,"abstract":"The article presents the results of a study of formation mechanism of magnesia-ferrite when heated siderites of the Bakal deposit with different iron oxide content in an inert and oxidizing atmosphere. It was established that in the case of firing in an inert atmosphere, the decomposition of siderite with high iron content begins at a lower temperature and the enthalpy of such decomposition is less. This effect can be explained by the different phase composition of the samples. The main phases formed under conditions of oxidative firing are hematite and magnesia-ferrite. The amount of hematite and magnesia-ferrite produced in the samples with different iron oxide content during firing in an oxidizing atmosphere is different. Siderite with high content of iron oxides contains more hematite in the firing products than magnesia-ferrite, and siderite with a low content of iron oxides contains more magnesia-ferrite in the firing products than hematite. Formed under conditions of oxidative firing magnesia-ferrites are solid solutions and differ in the degree of substitution of iron and magnesium ions. In siderites with high content of iron oxides, the degree of substitution of magnesium ions with iron ions is greater than in samples with a low content of iron oxides. Since the siderites of the Bakal deposit are poor ore formations, the considerable amount of magnesia-ferrite formed in them during firing makes it difficult to separate silicate and iron-oxide firing products by traditional enrichment methods. Wustite in the products of oxidative firing is not detected, because under these conditions it is in a metastable state and in the presence of a weakly oxidizing atmosphere is converted into magnetite. The scientific novelty is the explanation of the mechanism of siderite decomposition and the description of products of such decomposition. Understanding of the mechanism of decomposition of siderite from the Bakal deposit made it possible to develop the technology of reductive firing of siderite to facilitate separation of its products, and which consists in the regulation of the phase composition of silicate products of reductive firing, ensuring the collapse of magnesia-ferrite and output of iron oxide in a separate phase. The developed technology can be used to provide high-quality enrichment of siderite from the Bakal deposit.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89511446","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}

{"title":"Structure and properties of 17G1S-U low-carbon pipe steel microalloyed by boron","authors":"A. Babenko, V. Zhuchkov, Natalia Sel’menskikh, A. G. Upolovnikova","doi":"10.17073/0368-0797-2018-10-774-779","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-10-774-779","url":null,"abstract":"The results of analysis of the influence of boron microalloying on structure and properties of 17G1S-U pipe steel are given in the paper. Studies of metal structure were performed by electron microscopy and local X-ray spectral analysis. It has been established that metal containing 0.006 % of boron is characterized by an increased volume concentration to 0.029 % of oxide (OS) and oxysulfide (OSB) inclusions, whose content in metal without boron reaches 0.006 %. Separate sulphide inclusions (CB), whose concentration does not exceed 0.004 % against 0.029 % in a metal without boron, containing 0.01 % S is practically absent in the metal with boron containing 0.003 % S. The microalloying of pipe steel by boron has ensured the preferential formation of small nonmetallic inclusions, evenly distributed in the volume of metal. The proportion of nonmetallic inclusions with size less than 2 (rm is 76.1 %, whereas in steel without boron it is only 58.5 %. In this case, large nonmetallic inclusions of more than 10 rm are practically absent in the sample with boron. Their share does not exceed 0.6 %, which is 22 times less than their amount in the sample without boron. The structure of the sample without boron consists mainly of ferrite and a small amount of perlite, and the sample with boron is represented by a dispersed ferritic-bainitic structure. Increasing the microhardness of both ferrite and pearlite 80 and 100 HV10, respectively, is observed by adding boron to steel. The mechanical properties of 10 mm hot rolled metal from boron-containing 17G1S-U pipe steel are characterized by increased strength properties with preservation of plastic characteristics, due to the formation of predominantly small nonmetallic inclusions and a finely dispersed ferritic-bainitic structure. The absolute values of the yield stress and the time resistance of pipe steel containing in mass %: 0.006 B and 0.003 S are achieved without heat treatment at 585 and 685 MPa, respectively, and meet the X80 strength class, while retaining sufficiently high plastic characteristics. The pipe steel without boron containing 0.01 % of S belongs to the X70 strength class and is characterized by tensile strength lowered to 540 and 610 MPa and a temporary resistance, respectively.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76169799","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}

{"title":"Thermodynamic modeling of nickel and iron reduction from multicomponent silicate melt in bubbling process. Report 2. Reducing agent – a mixture OF Н2 – Н2О","authors":"A. Vusikhis, L. Leont’ev, D. Z. Kudinov, E. Selivanov","doi":"10.17073/0368-0797-2018-10-794-799","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-10-794-799","url":null,"abstract":"A number of technologies in ferrous and non-ferrous metallurgy  are based on bubbling processes. For prediction of melting parameters  including the reduction of metals from oxide melt by a reducing gas  in a bubbling layer in industrial aggregates, a thermodynamic modeling technique is proposed based on calculation of the equilibrium in  oxide-melt-metal-gas system. Originality of the technique is that equilibrium is determined for each unit dose of gas introduced into the  working body, with the contents of oxides of metals being reduced in  each subsequent design cycle equal to the equilibrium in the previous  one. For the analysis NiO (1.8  %) – FeO (17.4  %) – CaO (13.5  %)  –  MgO  (1.9  %) – SiO2 (58.0  %) – Al2O3 (7.4  %) oxide system was  taken, closely corresponding to composition of oxidized nickel ore.  The ratio of Н2О/Н2 in gas mixture varies between 0 and 1.0. (1823  K),  amount and composition of formed metal (ferronickel), as well as the  indices (the ratio of slag and metal, the degree of reduction of metals)  are important in implementation of the process under commodity conditions. The increase in hydrogen consumption monotonously reduces  the content of nickel oxide in the melt, while the content of iron oxide  initially increases, and then decreases.  When H2 is introduced in an  amount of about 50 m3 per ton of the melt, the content of nickel oxide  in it is reduced to 0.017  %, and of iron oxide to 16.7  %. Resulting ferronickel contains 61  % Ni, ratio of slag and metal – 42  units. Further  increase in H2 consumption leads to preferential iron reduction. An increase in H2O/H2 ratio worsens the results of reduction of metals from  the melt: decrease in degree of reduction of nickel and iron, increase  in nickel content in the alloy, and the ratio of slag and metal. However,  even with a H2 / H2O ratio of 1.0, which corresponds to 50  % of H2O  in the gas mixture, reduction process does not stop. For comparison,  the work presents data on change in content of nickel and iron oxides,  when metals are restored from similar melts with carbon monoxide.  At a nickel recovery rate of 98  %, indicators are close in case of using  both H2 and CO. However, to achieve them, it is required 2.5  times less hydrogen, and 1.36 times less mixture in which H2O/H2  =  0.11  (H2  –  90  %) than carbon monoxide.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83020881","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}

{"title":"Evaluation of uneven distribution of charge materials at blast furnace","authors":"S. K. Sibagatullin, A. S. Kharchenko, L. D. Devyatchenko","doi":"10.17073/0368-0797-2018-10-766-773","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-10-766-773","url":null,"abstract":"In various industries, the uneven distribution of material and  energy resources significantly affects stability of the technological  process and reduces the quality of products. In particular, in the blastfurnace production, the uneven distribution of charge materials and  the temperature of gases significantly affect technical and economic  performance of the furnace. The analysis of bibliographic sources  has shown that for the estimation of unevenness various coefficients  were generally used, taking into account the variability of material and  ener gy resources in the production process, the coefficient of variation  introduced by K. Pierson in 1895 was the most widespread. It was determined the relation between the square of the coefficient of variation of V2 and the value  X2= (n(N-1))/N*V2according to which the random  variable V2 has  X2k a distribution with k degrees of freedom, k  =  N  –  1,  where n  =  n1 + n2 + … + nN, ni is the value of the i-th measurement,  i = 1, N – is the number of measurements. The proposed method  for estimating the unevenness is based on statistics  X2k,  and X2also  introduced by K. Pearson in 1901 and 1904, respectively. The latter  was intended to test the H0-correspondence of the empirical and statistical distribution. The method for determining the circumferential  irregularity in the distribution of materials and gases in a blast furnace  is based on the consistency of X2k and X2 of Pearson statistics, using  the so-called quantile factor q, if in calculations of X2 the valu es   of the ,physical quantities themselves are used, by analogy, not the frequency  of the measured quantities. In this method, X2-statistic after correction  was used to determine the measure of deviation  (p) from the uniform  distribution, i.e. the unevenness coefficientp = p(X2/k), p  є  (0; 1 – α),   X2k =  X2max= qX2 was calculated. In order to reconcile X2 and  X2k statistics with the measurements of the physical quantities (temperature,  pressure) or materials (granular, gaseous), the X2-statistic must be adjusted so that  qX2max≈ X2k(α), X2max с(X21,..., Х2M )where M – is the  number of experiments for which the values   of X2-statics were determined,  X2k(α) – the upper α-quantile of  X2k statistic, q – the quantile multiplier, introduced for the correction of the X2-statistic values,  X2max–  the maximum value of X2-statistic is admissible for determining the  measure of non-uniformity.The method was tested to evaluate the relative non-uniformity of the loaded charge components and the distribution of peripheral temperature at blast furnaces of OJSC “MMK” with  volume of 2014 and 1370 m3. The influence of the sequence of a set of  charge components in the hopper of a bell-less charging device of the  furnace on the coefficient of circumferential unevenness (p) and the  technical and economic parameters of melting was revealed.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74386341","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}

{"title":"Model of thermomechanical behavior of structures reinforced by fibrous plastic","authors":"V. Kaledin, K. V. Tagil’tsev-Galeta, A. D. Ul’yannov","doi":"10.17073/0368-0797-2018-10-824-826","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-10-824-826","url":null,"abstract":"Dependence of tensile strength of CFR with fiber reinforcement circuit 45°/0/-45° on maximum heating temperature is considered. This dependence is constructed according to the results of field experiment. The relation between excess of glass transition temperature and ultimate strength of the sample was established. It was concluded that it is possibile to make equilibrium equations for numerical modeling of structures made of polymer composite materials under joint force and multiple temperature effects, at temperatures slightly higher than glass transition temperature.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76700072","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}

{"title":"Study of the interrelations of blowing parameters, options of electric influence and nature of liquid spraying by physical modeling","authors":"S. Semykin, T. Golub, E. V. Semykina, S. Dudchenko, V. Vakulchuk","doi":"10.17073/0368-0797-2018-10-755-759","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-10-755-759","url":null,"abstract":"The main and decisive factor of blowing in oxygen converters  is interaction of high-speed oxygen jet with a molten bath. The features of this interaction determine hydrodynamics and level of metal  losses with slopping and spitting. Their study is most accessible with  cold modeling. The paper presents results of laboratory studies on the  physical model of a 160 ton converter manufactured at a scale of 1:30  to study the influence of blowing modes on character of liquid spraying.  It is blown through a lance with five nozzle tips at 10 horizons in model  height on three zones of working volume of converter model: area near  lance, area near the wall and out-of-model area. That in practice corresponds to intensity of formation of skull on the lance, on converter  mouth and on elements of the fume gas collecting system. It was found  that the total amount of liquid sprays carried out of the model is extreme  and depends on level of lance position, with a noticeable decrease in  the amount of sprays at zero height above the liquid, and above certain  values. The possibility of reducing of the intensity of splashing formation and the level of liquid loss within the investigated zones was  determined by applying a low-voltage electric potential: with negative  polarity in the area near the lance and near the walls, and with positive  polarity – out of the model.  It was revealed that beginning of practical  influence of the potential and the maximum value of “useful” power  allocated in the sublance zone is determined by specific combination of  pressure before the nozzle and the level of tip of the lance: the higher  the pressure in front of the nozzle is, the higher lance position is needed  to reach maximum values of “useful” power. The experiments, conducted on physical model during blowing of saline solutions with gases  at using of electric potentials, have shown possibility of extending the  scope of developed method to processes not related to metallurgy.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86161791","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}

{"title":"Benefits and risks of blast furnaces with high intensity","authors":"S. Zagainov, S. Filatov, S. V. Myasoedov, L. Gileva, V. Titov","doi":"10.17073/0368-0797-2018-10-760-765","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-10-760-765","url":null,"abstract":"Increase in the intensity of blast furnace smelting at NLMK JSC is achieved by improving quality of coke and iron ore materials, by increasing pressure under the blast furnace mouth and by oxygen enrichment. It is accompanied by an increase in the rate of wustite indirect reduction and decrease in specific heat losses with cooling water. However, the risks of burden yield problems are significantly lower with high intensity. It has been established that with the change in quality of charge materials, reason for burden yield problems can be also the variation in ore load ratio along the furnace radius. A new method for diagnosing causes of burden yield problems was developed. Using method of mathematical modeling, effect of change in ore load and size of iron-ore materials on peripheral gases temperature change and the degree of CO use were analyzed. The method is based on analysis of joint change in gas temperature and degree of CO use in peripheral area. Analysis of peripheral gases temperature variation and degree of CO use makes it possible to identify reasons of pressure drops along the furnace height. As a result of analysis of pressure drops dynamics changes along the furnace height, there have been found signs that can be used to judge the probability of burden yield problems. The possibility of reducing pressure drops due to redistribution of ore load along the furnace radius and the amount of gases is considered. It is shown that various methods of reducing the amount of gases are accompanied by different changes in coke consumption and furnace productivity. Mathematical model has been developed to select the best combination of parameters changing of the fuel-enriched blast in specific conditions.","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72371696","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}

{"title":"Effect of titanium on oxygen solubility IN Ni - Co - Cr melts","authors":"A. Aleksandrov, V. Dashevskii","doi":"10.17073/0368-0797-2018-10-827-831","DOIUrl":"https://doi.org/10.17073/0368-0797-2018-10-827-831","url":null,"abstract":"","PeriodicalId":35527,"journal":{"name":"Izvestiya Vysshikh Uchebnykh Zavedenij. Chernaya Metallurgiya","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80961884","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}