WIT Press


Fatigue Crack Growth Mechanism Of MMC At Room And Higher Temperatures

Price

Free (open access)

Paper DOI

10.2495/LD960201

Volume

13

Pages

8

Published

1996

Size

618 kb

Author(s)

T. Tanaka, H. Nakayama & Y. Kobayashi

Abstract

In order to clarify the fatigue failure mechanism of an alumina short fiber reinforced aluminum alloy (hereafter, MMC for brevity), a series of fatigue strength and fatigue crack growth tests was carried out at room and elevated temperatures. Aluminum alloy A6061 was used as a reference material. Results of fatigue strength tests showed that the fatigue strength of the MMC was superior to that of A6061 alloy in long life region and at higher temperature. Similar trend was also found from the results of fatigue crack growth tests, that is, the MMC showed higher threshold level and relatively lower dependence of the crack growth rate on the

Keywords