Abstract
Laboratory studies of influence of the flux-cored wire composition on properties of the deposited layer of steel samples shows that the introduction to the composition of flux-cored 35V9Kh3SF wire of the fluorine-carbon-containing material instead of amorphous graphite leads to a decrease in porosity of the deposited layer and reduces the amount of contained non-metallic inclusions, including stroke oxide inclusions and non-deformable silicates. On the basis of statistical processing of experimental data the dependence of the deposited layer hardness on the carbon equivalent of used flux-cored 35V9Kh3SF wire was determined. As a result of generalization of experimental data the influence of increasing carbon equivalent of flux-cored 35V9Kh3SF wire on the increase in of the deposited layer hardness, the average surface hardness and the microhardness of martensite was established. With increasing carbon equivalent, calculated according to the formula of the Paton Institute of Electric Welding, the deposited layer hardness increases linearly.
Highlights
Laboratory studies of influence of the flux-cored wire composition on properties of the deposited layer of steel samples shows that the introduction to the composition of flux-cored 35V9Kh3SF wire of the fluorine-carbon-containing material instead of amorphous graphite leads to a decrease in porosity of the deposited layer and reduces the amount of contained non-metallic inclusions, including stroke oxide inclusions and non-deformable silicates
Изучение влияния введения в шихту для производства порошковой проволоки системы C – Si – Мn – Сr – W – V углеродфторсодержащей добавки и никеля // Изв
Summary
Проведенными лабораторными исследованиями влияния состава порошковой проволоки на свойства наплавленного слоя стальных образцов показано, что ввод в состав порошковой проволоки марки 35В9Х3СФ углеродфторсодержащего материала взамен аморфного графита приводит к снижению пористости наплавленного слоя и уменьшает количество содержащихся в нем неметаллических включений, в том числе строчечных оксидных включений и недеформируемых силикатов. На основании статистической обработки экспериментальных данных получена зависимость твердости наплавленного слоя от углеродного эквивалента используемой порошковой проволоки марки 35В9Х3СФ. Для определения влияния состава порошковых проволок системы легирования C – Si – Мn – Сr – W – V на показатели стойкости наплавленных прокатных валков проведены исследования [11].
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Schedule a callMore From: Izvestiya Visshikh Uchebnykh Zavedenii. Chernaya Metallurgiya = Izvestiya. Ferrous Metallurgy
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