Исследование структуры и свойств нового пористого композиционного материала, полученного прямым лазерным нанесением

Показана возможность формирования пористых материалов биомедицинского назначения из сплава ВТ6/Ta/Zr прямым лазерным нанесением. Варьирование мощностью лазера позволило получить сплавы с переменной пористостью. Были подобраны режимы, обеспечивающие формирование пористого материала с модулем нормальной упругости, соответствующим кости человека. Установлено, что при мощности лазера 50 Вт достигается значение пористости 32%, что удовлетворяет требованиям, например, для дентального протезирования. В процессе прямого лазерного нанесения материалов в сплаве ВТ6/Ta/Zr с переменной пористостью частицы тантала не плавятся и выступают центрами кристаллизации. Такие условия обеспечивают формирование высокодисперсной структуры металла, состоящей преимущественно из порошинок ВТ6 с равномерно распределенными частицами Ta и Zr.

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