Creep behavior of a unidirectional SCS-6/Ti-15-3 metal matrix composite at 450 C

Journal Article · Fri Apr 01 04:00:00 EST 1994 · Journal of Engineering Materials and Technology; (United States)

DOI:https://doi.org/10.1115/1.2904275· OSTI ID:7165877

Ohno, N; Toyoda, K; Okamoto, N ^[1]; Miyake, T ^[2]; Nishide, S ^[3]

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1. Nagoya Univ. (Japan). Dept. of Mechanical Engineering
2. Nagoya Industrial Inst. (Japan). Dept. of Electro-Mechanical Engineering
3. Ishikawajima-Harima Heavy Industries, Ltd., Tokyo (Japan). Aeroengine and Space Operations

As the first step to understand the creep behavior of a unidirectional SCS-6/Ti-15-3 metal matrix composite, creep tests were performed at 450 C using specimens reinforced with fibers oriented at 0 deg (longitudinal), 45 deg (off-axis), and 90 deg (transverse) to the specimen axis. Measuring the elongation in the gage section, the authors found that creep deformation and rupture can occur even in the longitudinal creep at stress levels much lower than the tensile strength although the SCS-6 fiber itself does not creep at all, and that the 45 deg off-axis creep has some ductility, which is greater at lower stress, whereas the transverse creep behavior is relatively brittle. Results of the longitudinal creep tests were discussed on the basis of the relaxation of stress in the matrix as well as the bundle strength of fibers.

• OSTI ID: 7165877
• Journal Information: Journal of Engineering Materials and Technology; (United States), Journal Name: Journal of Engineering Materials and Technology; (United States) Vol. 116:2; ISSN 0094-4289; ISSN JEMTA8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALLOYS
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
CREEP
DATA
EXPERIMENTAL DATA
INFORMATION
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
NUMERICAL DATA
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
TESTING
TITANIUM ALLOYS