Исследование эволюции и фазообразования на границе раздела сварного соединения 08Х18Н10Т–АМг6 после сварки взрывом и термической обработки с помощью послойного рентгеноструктурного анализа

Методом послойного рентгеноструктурного анализа (РФА) исследована фазовая эволюция в зоне соединения биметалла  сталь 08Х18Н10Т–АМг6, полученного сваркой взрывом, с последующим изотермическим отжигом при 500–550 °C. Установлено, что после сварки взрывом в приповерхностных слоях формируется метастабильная квазикристаллическая фаза Al₈₆Fe₁₄, которая распадается при изотермическом отжиге
с образованием равновесных интерметаллических соединений Al₅Fe₂ и Al₁₃Fe₄. Также  после отжига фиксируется формирование тройной фазы Cr₂Mg₃Al₁₈, что свидетельствует об активизации диффузионного взаимодействия компонентов стали и алюминиевого сплава. Таким образом, показана последовательная эволюция фазового состава в зоне соединения после сварки взрывом и термического воздействия. Полученные результаты расширяют представления о механизмах фазообразования и диффузионных процессов на границе соединения в биметалле сталь 08Х18Н10Т–АМг6 при сварке взрывом, а также о влиянии термического воздействия на эволюцию фаз.

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