The mechanical properties of Al alloys reinforced with continuous Al2O3 fibers |
| |
| Affiliation: | 1. Materials Department, College of Engineering, University of California, Santa Barbara, CA 93106, USA;2. Carnegie Mellon University, Pittsburgh, PA 15213, U.S.A.;1. Department of Electrical and Electronics Engineering, BITS Pilani, K. K. Birla Goa Campus, Zuari Nagar, Goa 403726, India;2. Department of Computer Science and Information Systems, BITS Pilani, K. K. Birla Goa Campus, Zuari Nagar, Goa 403726, India;1. School of Civil Engineering, University of Leeds, Leeds, LS2 9JT, UK;2. Independent Researcher, 31 Woodlea Mount, Leeds, LS11 7NT, UK |
| |
| Abstract: | The mechanical properties of aluminum matrix composites unidirectionally reinforced with Al2O3 fibers have been measured and characterized in longitudinal and transverse tension, as well as in shear. The flow strengths in transverse tension and shear are found to exceed those of the matrices, although the ductilities are lower. The strengthening is generally consistent with the development of plastic constraint in the matrix around well-bonded fibers, subject to the in situ properties of the matrix being known from independent measurements. The properties in longitudinal tension are found to involve interactions between fibers, such that fiber bundle strengths are not achieved, even when a low strength, pure Al matrix is used. Instead, the strengths are consistent with a crack growth controlled failure mechanism, wherein the strength is governed by the resistance of the material to crack extension from failed fibers. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
