ОБРАБОТКА МЕТАЛЛОВ

Введение. Современная нефтегазовая промышленность нуждается в разработке материалов высокой прочности для обсадных труб. Изменения в технологиях производства стального проката являются одной из актуальных задач. Снижение себестоимости обсадных труб из высококачественной стали становится серьезной задачей для нефтегазовой промышленности. Многофазные микроструктуры, содержащие игольчатый феррит или фазу с преобладанием игольчатого феррита, обладают хорошими комплексными свойствами в сталях HSLA. В настоящей статье основное внимание уделяется результатам, полученным с использованием современных методов термомеханической прокатки. Результаты и обсуждение. В данной работе проведен анализ характеристик технологий термомеханической прокатки и их влияния на микроструктуру стального проката для обсадных труб. Показано, что прогнозирование механических свойств на основе микроструктурных характеристик стали усложняется из-за большого количества задействованных параметров. Для этого необходима оптимальная микроструктура стали. Удовлетворительная микроструктура зависит от нескольких факторов, таких как химический состав, обработка горячей деформацией и ускоренное охлаждение. Легирующие элементы оказывают комплексное влияние на свойства стали, и обычно в состав стали вводят легирующие добавки. С металлургической точки зрения выбор легирующих элементов и металлургический процесс могут сильно повлиять на полученную микроструктуру. Заключение. В настоящем обзоре сообщается о наиболее репрезентативном исследовании, касающемся технологий термомеханической прокатки и микроструктурного фактора в сталях для обсадных труб. Он включает в себя сводку наиболее важных переменных процесса, свойств материалов, нормативных правил, а также характеристик микроструктуры и механических свойств металла для производства обсадных труб. Предполагается, что этот обзор поможет читателям с разным опытом, от неспециалистов по обработке металлов давлением или материаловедов до специалистов различных промышленных приложений и исследователей.

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