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- Title
Special Features of Structure Formation and Properties of Special High-Alloy Alloys of the Al – Si – Cu System.
- Authors
Afanas'ev, V. K.; Popova, M. V.; Malyukh, M. A.
- Abstract
The special features of formation of structure in alloys Al – (20 – 50)% Si – (2 – 60)% Cu and the distribution of the alloying elements in them are studied. Metallographic analysis is made using optical and scanning electron microscopy and x-ray diffractometry. The density of the alloys is determined. The Al – Si – Cu compositions with low and steady values of the temperature coefficient of linear expansion (TCLE) α = (9.0 – 4.0) × 10 – 6 K– 1 in the range of 50 – 450°C are chosen. It is shown that the density of these alloys does not exceed 3500 kg/m3. The results of the study may be used for developing low-TCLE alloys for special fields of instrument engineering.
- Subjects
COPPER; ALLOYS; SCANNING electron microscopy; X-ray microscopy; ENGINEERING instruments
- Publication
Metal Science & Heat Treatment, 2023, Vol 64, Issue 11/12, p655
- ISSN
0026-0673
- Publication type
Article
- DOI
10.1007/s11041-023-00867-5