Influence of W addition on microstructure and mechanical properties of Al-12%Si alloys

Anna Zykova, Nikita Martyushev, Vadim Skeeba, Denis Zadkov, Andrey Kuzkin

Результат исследований: Материалы для журналаСтатья

16 Цитирования (Scopus)

Аннотация

A widespread method exerting the influence on the homogeneous formation of the microstructure and enhancement of strength properties of Al-Si alloys is a modification by superand nanodispersed particles of different chemical compositions. In spite of the significant advances in the studies of the influence of various modifying compositions on the structure and mechanical properties of casted silumins, the literature contains no data about the influence of nanodispersed W-powder on formation of the structural-phase state and mechanical properties of Al-Si alloys. The paper considers the influence of 0.01-0.5 mass %Wnanopowder on the structural-phase state and mechanical properties of an Al-12%Si alloy. It has been established that 0.1 mass % ofWis an optimal addition. It results in the uniform distribution of eutectic (α-Al + Si), a 1.5-time decrease in the size of the plates of eutectic Si, a change of the shape of coarse plates (coarse plate-like or acicular) into a fine fibrous one, and an enhancement of the mechanical properties by 16-20%.

Язык оригиналаАнглийский
Номер статьи981
ЖурналMaterials
Том12
Номер выпуска6
DOI
СостояниеОпубликовано - 1 янв 2019

ASJC Scopus subject areas

  • Materials Science(all)

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