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Mechanical Properties and Microstructure of Thin-Walled Al-Cu Alloy Casting.
- Source :
-
Strength of Materials . Mar2022, Vol. 54 Issue 2, p302-308. 7p. - Publication Year :
- 2022
-
Abstract
- This study aimed to investigate the tensile properties and microstructure of Al-Cu alloy casting with a dimension of ∅500 mm × 700 mm and a 5mm-thick wall at room temperature and 200°C. The results indicated that the strength and elongation of Al-Cu alloy casting at room temperature were excellent, exceeding 425 MPa and 8%, respectively. Such a good performance was attributed to the tiny equiaxed grains. However, the occurrence of acicular θ phase distributed around the α-Al matrix grains was disadvantageous to strength and especially to elongation. Moreover, no dynamic recrystallization was observed in the tensile tests at 200°C. Besides, numerous dimples were found in the fracture morphology, which were beneficial to the elongation. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MICROSTRUCTURE
*TENSILE tests
*SAND casting
*RECRYSTALLIZATION (Metallurgy)
*ALLOYS
Subjects
Details
- Language :
- English
- ISSN :
- 00392316
- Volume :
- 54
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Strength of Materials
- Publication Type :
- Academic Journal
- Accession number :
- 157836599
- Full Text :
- https://doi.org/10.1007/s11223-022-00406-2