期刊
METAL SCIENCE AND HEAT TREATMENT
卷 60, 期 5-6, 页码 360-366出版社
SPRINGER
DOI: 10.1007/s11041-018-0284-4
关键词
aluminum alloys; electrical conductivity; mechanical properties; thermal stability
资金
- RF Ministry of Education and Science
The effect of small additions of Mn, Ni, and Cr on a set of mechanical properties at room and elevated temperatures and electrical conductivity of alloys based on the Al - Fe - Si system is studied. It is shown that nickel increases electrical conductivity by 3% for alloys based on the Al - Fe - Si system, and chromium and manganese reduce it by 5 - 10%, which is connected with formation of a more alloyed solid solution. It is established that as a result of cold deformation treatment a dispersed structure forms within the alloy with an average excess phase size up to 0.7 m. Excess phases of this size are effective recrystallization barriers, and therefore a cold-worked structure is retained in all alloys up to 300 degrees C, which points to good thermal stability of the experimental alloys.
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