Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Duplex Stainless Steel SAE 2205.

Дисертації з теми "Duplex Stainless Steel SAE 2205"

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся з топ-30 дисертацій для дослідження на тему "Duplex Stainless Steel SAE 2205".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.

1

Amaro, Lucinda Oliveira. "Estudo da resistÃncia à corrosÃo do aÃo inoxidÃvel duplex UNS S31803 OU SAF 2205 submetido a processo de soldagem." Universidade Federal do CearÃ, 2006. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=3196.

Повний текст джерела
Анотація:
CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior<br>Este trabalho objetiva estudar a influÃncia da energia de soldagem na resistÃncia à corrosÃo do aÃo inoxidÃvel duplex UNS S31803 ou SAF 2205. Para isto foi avaliada a susceptibilidade do material soldado à corrosÃo intergranular e por pite e sua relaÃÃo com a microestrutura da zona afetada termicamente pelo calor durante o processo de soldagem. Foram tambÃm avaliadas a microdureza e a quantificaÃÃo de fases para correlacionÃ-los com a microestrutura. As tÃcnicas eletroquÃmicas utilizadas neste estudo foram a de reativaÃÃo e a de polarizaÃÃo
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Lessa, Cleber Rodrigo de Lima. "Qualificação mecânica e metalúrgica do processo de soldagem FHPP aplicado no aço inoxidável duplex SAF 2205." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/151400.

Повний текст джерела
Анотація:
O objetivo deste estudo é qualificar reparos realizados através do processo de Soldagem por Fricção com Pino Consumível (SFPC), ou Friction Hydro Pillar Processing (FHPP) em chapas de aços inox duplex SAF 2205 (AID UNS S31803). Em paralelo, fazer uma comparação relativa ao mesmo material reparado com o processo TIG (GTAW). Após a obtenção das juntas reparadas em ambos os processos, estas passaram por rigorosa análise microestrutural e ensaios mecânicos para, dessa forma, qualificá-las através de critéios usuais recomendados em normas para utilização no restauro de estruturas que utilizam o mat
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Nunes, Everton Barbosa. "âPROPRIEDADES MECÃNICAS E CARACTERIZAÃÃO MICROESTRUTURAL NA SOLDAGEM DO AÃO INOXIDÃVEL DUPLEX UNS S31803 (SAF 2205)â." Universidade Federal do CearÃ, 2009. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=3918.

Повний текст джерела
Анотація:
AgÃncia Nacional do PetrÃleo<br>FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>Os aÃos inoxidÃveis duplex possuem boas propriedades mecÃnicas e excelente resistÃncia à corrosÃo, aumentando seu uso em ambientes agressivos. Estas caracterÃsticas os fazem muito utilizados principalmente na indÃstria quÃmica e petroquÃmica. Geralmente, a fabricaÃÃo e reparo destes equipamentos envolvem operaÃÃes de soldagem, sendo que à muito importante avaliar a influÃncia dos parÃmetros de soldagem multipasse no balanceamento de fases, na microestrutura e microdureza. Primeiramente, fo
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Gogola, Eliane Engel. "Estudo da corrosão dos aços AISI 1020, 304L, 316L e duplex SAF 2205 em planta do tratamento de efluentes em indústria de celulose e papel." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2014. http://tede2.uepg.br/jspui/handle/prefix/1457.

Повний текст джерела
Анотація:
Made available in DSpace on 2017-07-21T20:42:46Z (GMT). No. of bitstreams: 1 Eliane Engel Gogola.pdf: 5376053 bytes, checksum: d9613bf1e372ef92965596e2136c6891 (MD5) Previous issue date: 2014-08-28<br>In this work were studied of the chemical product’s influence once used through the membrane’s cleaning process of the ultrafiltration plant in the effluent treatment station, in a pulp and paper company, located in Paraná State – Brazil on the corrosive process presented in the plant. It was determined the electrochemical parameters through electrochemical methods, according to the norm ASTM G
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Dalton, John Christian. "Surface Hardening of Duplex Stainless Steel 2205." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1480696856644048.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Ruiner, Thomas H. "Characterization of thermal damage in 2205 duplex stainless steel with nonlinear ultrasonics (nlu)." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37156.

Повний текст джерела
Анотація:
Duplex stainless steels have a microstructure that consists of almost equal shares of austenite and ferrite, which leads to excellent material properties. During production and processing, the steel can be exposed to high temperatures which leads to the development of a third (sigma) phase, and thus to a change in material properties. The objective of this research is to assess the material damage in thermally degraded 2205 duplex stainless steel using nonlinear ultrasonics (NLU). Seven 2205 duplex stainless steel specimens are thermally degraded at 700 C for a series of different time duratio
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Zimmermann, Margarita Rosa Bobadilla. "Nitretação a plasma de um aço inoxidável duplex 2205." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-13082015-165238/.

Повний текст джерела
Анотація:
Os aços inoxidáveis duplex se caracterizam por terem boas propriedades mecânicas e de resistência a corrosão, no entanto as suas propriedades de resistência ao desgaste são baixas. Para melhorar as propriedades superficiais desses materiais são utilizados tratamentos termoquímicos como a nitretação a plasma. Este tratamento é feito em temperaturas baixas para evitar a formação de nitretos de cromo, os quais quando são formados empobrecem o teor de cromo da matriz metálica, evitando que se forme a camada passiva, que confere resistência a corrosão a este tipo de material. Também, a nitretação a
Стилі APA, Harvard, Vancouver, ISO та ін.
8

He, Mei. "Evaluation of the Susceptibility of Duplex Stainless Steel 2205 to Hydrogen Assisted Cracking in REAC System." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1471554106.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Tolunguc, Burcu. "Microstructural And Mechanical Characterization Of Duplex Stainless Steel Grade 2205 Joined By Hybrid Plasma And Gas Metal Arc Welding." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614001/index.pdf.

Повний текст джерела
Анотація:
In the present study, the applicability of the hybrid plasma arc welding, in which a keyhole is responsible of deep penetration and a filler wire electrode supplies a high deposition rate, was examined. The microstructural evolutions in grade 2205 duplex stainless steel plates joined by keyhole and melt-in techniques were investigated. The specimens obtained from welded plates having thickness of 8 mm were examined via optical and scanning electron microscopy. Metallographic investigations were supported by X-ray diffraction and energy dispersed spectra analyses by characterizing the phases fo
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Liu, Jialin. "Mechanism of Biocorrosion Caused by Biofilms and Its Mitigation." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1511966633638842.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
11

Liu, Po-Wei, and 劉珀瑋. "The Study of Hydrogen Embrittlement of IF Steel and 2205 Duplex Stainless Steel." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/63319158529318708057.

Повний текст джерела
Анотація:
碩士<br>國立海洋大學<br>材料工程研究所<br>90<br>The first part of this study is hydrogen embrittlement of 2205 duplex stainless steel. The second part, the role of plastic deformation by cold work on the hydrogen susceptibility of Ti-bearing interstitial free steel. Hydrogen embrittlement of 2205 duplex stainless steel has been evaluated using electrochemical permeation measurement, hydrogen microprint technique and tensile test in this study. Due to hydrogen transport in 2205 duplex stainless steel is mainly lattice diffusion in ferritic phase and was confirmed hydrogen microprint technique, more
Стилі APA, Harvard, Vancouver, ISO та ін.
12

Siao, Sheng-Yao, and 蕭聖耀. "Correlation between fracture toughness and microstructure in 2205 duplex stainless steel." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/40315574143097670514.

Повний текст джерела
Анотація:
碩士<br>雲林科技大學<br>材料科技研究所<br>98<br>This study investigated the effect of heat treatment temperature, range form 800 – 950oC, and cooling rate on the microstructure, mechanical properties and fracture toughness. It was found that volume fraction of γ phase decreased with increasing annealing temperature. On the contrary, volume fraction of α phase increased with increasing annealing temperature. As annealing below 850 oC, more hard thin plate σ phase precipitated along α/γ interface. However, a little granular σ phase precipitated during annealing at temperature higher than 900 oC. After anneali
Стилі APA, Harvard, Vancouver, ISO та ін.
13

CHOU, Cheng-Yu, and 周正裕. "Microstructures and Microtexture Determination of Electron Beam Welded 2205 Duplex Stainless Steel and 316 Austenitic Stainless Steel." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/94089114239363141486.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
14

Chen, Tung-Hung, and 陳東宏. "The characteristics of phase transformation and microstructure in 2205 duplex stainless steel." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/19188015125823266405.

Повний текст джерела
Анотація:
博士<br>國立臺灣大學<br>材料科學與工程學研究所<br>90<br>Duplex stainless steels with reasonable cost combine the attractive properties of single-phase stainless steels, such as the corrosion resistance and the toughness of austenitic stainless steel and the strength and stress corrosion resistance of ferritic stainless steel. In recent years, duplex stainless steel developed as an unique grade of stainless steel have been extensively used in the fields of chemical, petrochemical and energy industries. It had been well known that the excellent performance of duplex stainless steel is associated with the stable du
Стилі APA, Harvard, Vancouver, ISO та ін.
15

fu-fu, peng, and 彭富福. "The High Temperature Corrosion of 2205 Duplex Stainless Steel with NaCl Deposit." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/83618937000182316392.

Повний текст джерела
Анотація:
碩士<br>國立臺灣科技大學<br>機械工程系<br>92<br>Abstract The objective of this study is to figure out the hot corrosion behavior of 2205 duplex stainless steel (2205 DSS) within the temperature range from 550 to 850℃ in the static air condition with 2mg/cm2 NaCl deposit , and in the air atmospheres condition with a constant flow rate of 500vppm NaCl(g) respectively. Experimental results show that the hot corrosion kinetics met the parabolic rate law and the corrosion rate increased constantly with increasing temperature. The scales formed included Fe2O3/Fe3O4/Cr2O3 and FeCr2O4 from out
Стилі APA, Harvard, Vancouver, ISO та ін.
16

Chen, Jhen-Rong, and 陳振榕. "Electrochemical Behavior of the Respective Constituent Phase in 2205 Duplex Stainless Steel." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/64744116721831636023.

Повний текст джерела
Анотація:
碩士<br>國立成功大學<br>材料科學及工程學系碩博士班<br>93<br>Abstract  The electrochemical behavior of duplex stainless steel (DSS), such as potentiodynamic polarization curve for example, is the properties mixed by the constituent phases. It is worth to explore the measuring methods and the electrochemical behavior of the constituent phases in 2205 DSS. The electrochemical behaviors of the constituent phases in 2205 DSS and the measuring methods of them were performed in this research. The selective dissolution method was employed to separate the constituent phases, and the constituent phase samples were successf
Стилі APA, Harvard, Vancouver, ISO та ін.
17

Wei-JheHuang and 黃偉哲. "Effect of siliconization on microstructure and corrosion resistance of 2205 duplex stainless steel." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/t3ewkm.

Повний текст джерела
Анотація:
碩士<br>國立成功大學<br>材料科學及工程學系<br>106<br>The purpose of this study is to explore the effect of siliconization on microstructure and corrosion resistance of 2205 duplex stainless steel. Siliconization was achieved by pack cementation. The microstructure and Si concentration of siliconized 2205 DSS were analyzed by a scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS), respectively. Corrosion behavior was evaluated by polarization curve measurement. The experimental results showed that the Si solubility and diffusion behavior between austenite and ferrite were quite different.
Стилі APA, Harvard, Vancouver, ISO та ін.
18

Chern, Tsann-shyi, and 陳燦錫. "Study of characteristics and corrosion of grade 2205 duplex stainless steel A-TIG welds." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/14707565467977614646.

Повний текст джерела
Анотація:
博士<br>國立臺灣科技大學<br>機械工程系<br>98<br>The purpose of this study is to investigate the effects of activating flux addition on the weld penetration, weld appearance, weld morphology, angular distortion, welding microstructures, welded mechanical properties, and corrosion behavior of 2205 duplex stainless by autogenous A-TIG process. A bead-on-plate performed on duplex stainless plates using TiO2, MnO2, SiO2, MoO3, and Cr2O3 as an activating flux. The results shows a good appearance and morphology of weld can be obtained by using either MoO3 or MnO2 flux. The weld with the full penetration and the le
Стилі APA, Harvard, Vancouver, ISO та ін.
19

Hsieh, Yi-Chieh, and 謝亦傑. "The interaction between dislocations and the spinodal nanostructure in a 2205 duplex stainless steel." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/84429692329051023795.

Повний текст джерела
Анотація:
碩士<br>國立臺灣大學<br>材料科學與工程學研究所<br>103<br>A 2205 duplex stainless steel is susceptible to severe embrittlement after aging at 475ºC. Microstructures of the unaged and aged specimens (heat-treated at 475ºC for 64h) were investigated by different deformation tests, in order to elucidate the cause of this embrittlement and interaction between dislocations and the spinodal nanostructure. Before deformation, the aging treatment was found to bring about a spinodal nanostructure with 5-10nm interlocking domains in the δ-ferrite phase and the related dislocation characteristics were not changed by agi
Стилі APA, Harvard, Vancouver, ISO та ін.
20

Chen, Ming-Hung, and 陳銘宏. "An Investigation on the Optimum Parameters in Nd:YAG Laser Welding 2205 Duplex Stainless Steel." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/86759255343063408124.

Повний текст джерела
Анотація:
碩士<br>國立屏東科技大學<br>機械工程系所<br>98<br>The purpose of this study is to investigate the characteristics for tensile strength and weld under-cut in laser welding 2205 duplex stainless steel by Nd:YAG, and construct the optimized models for single and multiple quality objectives. Research procedure can be divided into experimental work and analysis for single and multiple quality objectives. Firstly, an orthogonal array of Taguchi method is used to arrange experimental work. The laser welding parameters selected include peak power, impulse frequency, impulse width and welding speed. The welding qualit
Стилі APA, Harvard, Vancouver, ISO та ін.
21

Chen, Chun-hung, and 陳俊宏. "Effect of Annealing on Microstructure and Corrosion Resistance of Silver-Containing 2205 Duplex Stainless Steel." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/20707965449993186250.

Повний текст джерела
Анотація:
碩士<br>國立高雄大學<br>化學工程及材料工程學系碩士班<br>101<br>In this study silver-containing 2205 duplex stainless steels was selected as test materials. Experiment was divided into two parts, the first part focuses on the effect of added amount of silver (0 wt.%, 0.1wt.%, 0.2wt.%) on the microstructure and corrosion resistance;the second part focuses on the effects of annealing temperature(800℃、875℃、960℃)and annealing time(1、10、100 hour) on the microstructure and corrosion resistance. From the experimental results of the first part, the doping of silver in 2205 duplex stainless steel increased the γ2 and γ phase
Стилі APA, Harvard, Vancouver, ISO та ін.
22

Lo, I.-Hsuang, and 羅亦旋. "Selective dissolution and corrosion fatigue behaviors of 2205 duplex stainless steel in H2SO4/HCl solution." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/02356044728598457640.

Повний текст джерела
Анотація:
博士<br>國立成功大學<br>材料科學及工程學系碩博士班<br>95<br>Abstract The purpose of this study was to investigate the selective dissolution and corrosion fatigue behaviors of 2205 duplex stainless steel (DSS) in H2SO4/HCl mixed acid solution. Due to the differences in chemical composition and crystalline structure between a and r phases, the corrosion resistance and mechanical properties were dissimilar. Potentiodynamic polarization measurement and surface morphology analysis show that selective dissolution of one of the constituent phases of 2205 DSS could occur at certain characteristic potentials in H2SO4/HCl s
Стилі APA, Harvard, Vancouver, ISO та ін.
23

Chen, Shueh-Shin, and 陳信學. "The Effect of Cold Work on Hydrogen Embrittlement and Mechanical Properties in 2205 Duplex Stainless Steel." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/78205498639225366139.

Повний текст джерела
Анотація:
碩士<br>國立海洋大學<br>材料工程研究所<br>91<br>The aim of this work is to study the effect of cold work on hydrogen embrittlement and mechanical properties in 2205 duplex stainless steel. Hydrogen embrittlement of solution treatment, 20 and 40% cold worked 2205 duplex stainless steels has been evaluated by using electrochemical permeation measurment, hydrogen microprint technique and tensile test in this study. For electrochemical permeation measurement, it is known that hydrogen effective diffusivity decrease with increasing cold work, while hydrogen concentration increase with the cold work.
Стилі APA, Harvard, Vancouver, ISO та ін.
24

Weng, Kuang-Liang. "The low-temperature aging embrittlement and crystallography of secondary precipitates with matrix in a 2205 duplex stainless steel." 2004. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2607200411203100.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
25

Zhan, Jia-Hao, and 詹嘉皓. "The effect of sigma phase on the pitting and stress corrosion cracking resistance of 2205 duplex stainless steel." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/14459610616120894621.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
26

Jang, Jia-Shiun, and 張嘉訓. "The Effect of Mechanical Milled BNi-3 Fillers on the Vacuum Brazed Joints of 2205 Duplex Stainless Steel." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/76625731776014263961.

Повний текст джерела
Анотація:
碩士<br>大同大學<br>材料工程研究所<br>89<br>The purpose of this study is to make brazing filler powders with different alloying compositions, via mechanical ball milling to braze 2205 duplex stainless steel by vacuum brazing; and proceed to the corrosion test of the brazed joints, hoping to get the brazed joints that have the similar corrosion properties between matrix and fillers, and further, to improve the corrosion resistance of the 2205 duplex stainless steel brazed joints. The γ phase proportion of 2205 duplex stainless steel is more while the cooling rate is slow. The amount of sigma phase precipita
Стилі APA, Harvard, Vancouver, ISO та ін.
27

Chiu, Jing-xin, and 邱敬欣. "Effects of hot-rolled band annealing temperature on the texture and mechanical propeties of 2205 duplex stainless steel." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/11598918960157372662.

Повний текст джерела
Анотація:
碩士<br>國立雲林科技大學<br>機械工程系碩士班<br>94<br>This study investigates the effects of hot-rolled band annealing temperature on the texture and mechanical properties of hot rolled and cold rolled 2205 duplex stainless steel. There are two parts in this thesis. In the first part, we studied the effects of hot band annealing temperature and hot rolled reduction on the microstructure characteristics and texture of hot bands. In the second part, we studied the effects of hot band annealing temperature on the microstructure, texture, mechanical properties and formability of cold rolled steel sheets. In the fir
Стилі APA, Harvard, Vancouver, ISO та ін.
28

Weng, Kuang-Liang, and 翁光良. "The low-temperature aging embrittlement and crystallography of secondary precipitates with matrix in a 2205 duplex stainless steel." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/36819597369632423080.

Повний текст джерела
Анотація:
博士<br>國立臺灣大學<br>材料科學與工程學研究所<br>92<br>Duplex stainless steels have been widely used in the oil, chemical and nuclear industries due to their high strength, good weldability, and high resistance to stress corrosion and pitting. The superior properties of these duplex stainless steels come primarily from approximately equivalent amounts of austenite (γ) and δ-ferrite. However, these types of steels are intrinsically subject to embrittlement when exposed to temperatures above 300 ℃ because of solid-state reactions within the ferrite phase. It is well known that in Fe-Cr alloys there is a miscibili
Стилі APA, Harvard, Vancouver, ISO та ін.
29

Liu, Chang-Chia, and 劉長嘉. "A study of high temperature mechanical behaviors and annealed cold-rolled sheet mechanical properties of 2205 duplex stainless steel." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/71026525910910793795.

Повний текст джерела
Анотація:
碩士<br>國立雲林科技大學<br>機械工程系碩士班<br>95<br>The high temperature mechanical behaviors and annealed cold-rolled sheet mechanical properties of 2205 duplex stainless steel were investigated in this study. There are two parts in this thesis.The first part is to analyse the mechanical behaviors of 2205 DSS deformed at 1025~1100℃ by Gleeble machine. The second part is to study the effects of cold-rolled reduction and annealing temperature on the microstructure, texture, mechanical properties and formability of cold rolled steel sheets. In the first part, during hot compression at 1000~1200℃, flow stress de
Стилі APA, Harvard, Vancouver, ISO та ін.
30

Chen, Yi-Chun, та 陳怡君. "The influence of heat-treatment on δ/γ/γ'/σ/χ phase transformation in 2205 duplex stainless steel with silver adding". Thesis, 2015. http://ndltd.ncl.edu.tw/handle/s85vx7.

Повний текст джерела
Анотація:
碩士<br>國立高雄大學<br>化學工程及材料工程學系碩士班<br>103<br>The purpose of this study is the precipitation temperature range of the γ' phase and the effect of doping silver on microstructure in 2205 duplex stainless steel. In this study, 2205 duplex stainless steels were selected as test materials, silver contents were 0wt% and 0.2wt%. Experiment was divided into two parts, the first part focuses on the effects of solid solution treatment with various time and silver adding on the variation of high temperature microstructure;the second part focuses on the precipitation temperature range of the γ' phase and effec
Стилі APA, Harvard, Vancouver, ISO та ін.
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!