Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel
YQ450NQR1 high-strength weathering steel is prone to cracking. The cracking patterns and morphology were detected by metallographic and scanning electron microscopies. The decarburized layer around the cracks is indicative of their origination in the continuous casting bloom. Then, the controlling f...
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| Дата: | 2018 |
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| Автори: | , , , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут проблем міцності ім. Г.С. Писаренко НАН України
2018
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| Назва видання: | Проблемы прочности |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/173829 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel / J.S. Qing, X.D. Duan, M.F. Xiao, J.Q. Li, M. Liu, Q. Liu, H.F. Shen // Проблемы прочности. — 2018. — № 1. — С. 193-201. — Бібліогр.: 18 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1738292020-12-22T01:26:11Z Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel Qing, J.S. Duan, X.D. Xiao, M.F. Li, J.Q. Liu, M. Liu, Q. Shen, H.F. Научно-технический раздел YQ450NQR1 high-strength weathering steel is prone to cracking. The cracking patterns and morphology were detected by metallographic and scanning electron microscopies. The decarburized layer around the cracks is indicative of their origination in the continuous casting bloom. Then, the controlling factors were established by analyzing the carbon content of molten steel, residual elements in the alloy, purity and performance of the mold powder, and secondary cooling water flow of the mold. Results show that the process optimization reduced the cracking reject ratio from 3.5 to 0.78%. Высокопрочная сталь YQ450NQR1, стойкая к атмосферной коррозии, проявляет склонность к образованию трещин. Исследованы характер трещинообразования и морфология с помощью металлографической и сканирующей электронной микроскопии. Образование обезуглероженного слоя вокруг трещин свидетельствует об их зарождении в непрерывной литой заготовке. Установлены регулирующие факторы путем анализа содержания углерода в расплавленной стали, остаточных элементов в сплаве, чистоты и эффективности пресс-порошка, расхода воды вторичного охлаждения формы. Показано, что оптимазация процесса снизила уровень отбраковки материала, содержащего трещины, с 3,50 до 0,78%. 2018 Article Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel / J.S. Qing, X.D. Duan, M.F. Xiao, J.Q. Li, M. Liu, Q. Liu, H.F. Shen // Проблемы прочности. — 2018. — № 1. — С. 193-201. — Бібліогр.: 18 назв. — англ. 0556-171X http://dspace.nbuv.gov.ua/handle/123456789/173829 539.4 en Проблемы прочности Інститут проблем міцності ім. Г.С. Писаренко НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Научно-технический раздел Научно-технический раздел |
| spellingShingle |
Научно-технический раздел Научно-технический раздел Qing, J.S. Duan, X.D. Xiao, M.F. Li, J.Q. Liu, M. Liu, Q. Shen, H.F. Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel Проблемы прочности |
| description |
YQ450NQR1 high-strength weathering steel is prone to cracking. The cracking patterns and morphology were detected by metallographic and scanning electron microscopies. The decarburized layer around the cracks is indicative of their origination in the continuous casting bloom. Then, the controlling factors were established by analyzing the carbon content of molten steel, residual elements in the alloy, purity and performance of the mold powder, and secondary cooling water flow of the mold. Results show that the process optimization reduced the cracking reject ratio from 3.5 to 0.78%. |
| format |
Article |
| author |
Qing, J.S. Duan, X.D. Xiao, M.F. Li, J.Q. Liu, M. Liu, Q. Shen, H.F. |
| author_facet |
Qing, J.S. Duan, X.D. Xiao, M.F. Li, J.Q. Liu, M. Liu, Q. Shen, H.F. |
| author_sort |
Qing, J.S. |
| title |
Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel |
| title_short |
Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel |
| title_full |
Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel |
| title_fullStr |
Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel |
| title_full_unstemmed |
Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel |
| title_sort |
study on the cracking mechanism of yq450nqr1 high-strength weathering steel |
| publisher |
Інститут проблем міцності ім. Г.С. Писаренко НАН України |
| publishDate |
2018 |
| topic_facet |
Научно-технический раздел |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/173829 |
| citation_txt |
Study on the Cracking Mechanism of YQ450NQR1 High-Strength Weathering Steel / J.S. Qing, X.D. Duan, M.F. Xiao, J.Q. Li, M. Liu, Q. Liu, H.F. Shen // Проблемы прочности. — 2018. — № 1. — С. 193-201. — Бібліогр.: 18 назв. — англ. |
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Проблемы прочности |
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