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Title: Analysis of thermal residual stress in a thick-walled ring of Duralcan-base Al-SiC functionally graded material

Abstract

A ring-cutting test and an elastic theory were applied to evaluate the macroscopic residual stress in a thick-walled ring made of Al-SiC functionally graded material (FGM). The FGM ring specimens, with outer diameter 90 mm, radial thickness approximately 8.4 to 10 mm, and width 30 mm, were fabricated by the centrifugal casting method from an ingot of Duralcan F3D.20S of Al-20 vol pct SiC master composite. Because of a difference in centrifugal forces of SiC particles and of molten aluminum alloy, the rings had a graded composition of SiC particles in the radial direction. The volume fractions of SiC particles in each ring specimen varied in the range of 0 to 43 vol pct from the inner to the outer surface of the ring, depending on the applied mold spin speed. A ring diametral compression test was performed to validate an analytical formula based on the curved beam theory that can account for the graded properties of the material. Excellent agreement between the theory that can account for the graded properties of the material. Excellent agreement between the theory and the experiment was found. The residual stress was found to be generated by a cooling of {Delta}T = 140 K,more » which was from half the melting point corresponding stress-free condition to the ambient temperature. The hoop residual stresses in the FGM ring varied in the range of {minus}50 to +35 MPa and from tension at the inner surface to compression at the outer space because of the graded composition. With an increase in wall thickness and/or composition gradation, the residual stresses were found to increase.« less

Authors:
 [1];  [2]
  1. Kagoshima Univ. (Japan). Dept. of Mechanical Engineering
  2. Shinshu Univ., Ueda (Japan). Faculty of Textile Science and Technology
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
438573
Resource Type:
Journal Article
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 27; Journal Issue: 12; Other Information: PBD: Dec 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; RESIDUAL STRESSES; COMPOSITE MATERIALS; ALUMINIUM; SILICON CARBIDES; CONCENTRATION RATIO; CASTING; LIQUID METALS; PARTICULATES; STRAINS; MATHEMATICAL MODELS; CORRELATIONS

Citation Formats

Fukui, Yasuyoshi, and Watanabe, Yoshimi. Analysis of thermal residual stress in a thick-walled ring of Duralcan-base Al-SiC functionally graded material. United States: N. p., 1996. Web. doi:10.1007/BF02595662.
Fukui, Yasuyoshi, & Watanabe, Yoshimi. Analysis of thermal residual stress in a thick-walled ring of Duralcan-base Al-SiC functionally graded material. United States. https://doi.org/10.1007/BF02595662
Fukui, Yasuyoshi, and Watanabe, Yoshimi. 1996. "Analysis of thermal residual stress in a thick-walled ring of Duralcan-base Al-SiC functionally graded material". United States. https://doi.org/10.1007/BF02595662.
@article{osti_438573,
title = {Analysis of thermal residual stress in a thick-walled ring of Duralcan-base Al-SiC functionally graded material},
author = {Fukui, Yasuyoshi and Watanabe, Yoshimi},
abstractNote = {A ring-cutting test and an elastic theory were applied to evaluate the macroscopic residual stress in a thick-walled ring made of Al-SiC functionally graded material (FGM). The FGM ring specimens, with outer diameter 90 mm, radial thickness approximately 8.4 to 10 mm, and width 30 mm, were fabricated by the centrifugal casting method from an ingot of Duralcan F3D.20S of Al-20 vol pct SiC master composite. Because of a difference in centrifugal forces of SiC particles and of molten aluminum alloy, the rings had a graded composition of SiC particles in the radial direction. The volume fractions of SiC particles in each ring specimen varied in the range of 0 to 43 vol pct from the inner to the outer surface of the ring, depending on the applied mold spin speed. A ring diametral compression test was performed to validate an analytical formula based on the curved beam theory that can account for the graded properties of the material. Excellent agreement between the theory that can account for the graded properties of the material. Excellent agreement between the theory and the experiment was found. The residual stress was found to be generated by a cooling of {Delta}T = 140 K, which was from half the melting point corresponding stress-free condition to the ambient temperature. The hoop residual stresses in the FGM ring varied in the range of {minus}50 to +35 MPa and from tension at the inner surface to compression at the outer space because of the graded composition. With an increase in wall thickness and/or composition gradation, the residual stresses were found to increase.},
doi = {10.1007/BF02595662},
url = {https://www.osti.gov/biblio/438573}, journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 12,
volume = 27,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 1996},
month = {Sun Dec 01 00:00:00 EST 1996}
}