The room temperature fatigue performance of two Saffil reinforced metal matrix composites manufactured by squeeze forming is assessed. For the composite with an LM 13 matrix, introduction of Saffil does not result in an increase in the ultimate tensile strength, and the fatigue performance is inferior to the unreinforced alloy. By contrast, the composite with a 6082 type matrix exhibits a markedly superior ultimate tensile strength and stiffness compared with the unreinforced equivalent and this is coupled with an improved overall fatigue performance.
MST/767
Get full access to this article
View all access options for this article.
References
1.
For ICI Saffil reinforced LM13, the room temperature fatigue performance falls beneath that of the unreinforced equivalent, this comparison being made for two materials at the same strength level.
2.
DINWOOD1EJ., MOOREE., LANGMANC. A. J., and SYMESW. R.: in ‘Composite materials’ (Conf. Proc.), 671-685; 1985, New York, AIME.
3.
DINWOODIEJ.: ‘Automotive applications for MMC's based on short staple alumina fibres’, SAE Paper 870437; 1987, Warrendale, PA, SAE.
4.
LEWISC. F.: Mater. Eng., 1986, 103, (5), 33–37.
5.
CHOUT. W., KELLYA. and OKURAA.: Composites, 1985, 16, 187–206.
6.
WILLIAMSG.: Metallurgia, 1983, 50, (6), 228–232.
7.
CLYNET. W., BADERM. G., CAPPLEMANG. R., and HUBERTP. A.: J. Mater. Sci., 1985, 20, 85–96.
8.
WILLIAMSG. and FISHERK. M.: Met. Technol., 1981, 8, (7), 263–267.
9.
HARRISs. J. and WILKST. E.: in ‘Fibre reinforced composites’, 19-28; 1986, London, Institute of Mechanical Engineers.
10.
o.H. and STEPHENSR. I.: ‘Metal fatigue in engineering’; 1980, London, John Wiley.
11.
MITCHELLM. R.: ‘A unified predictive technique for the fatigue resistance of cast ferrous-based metals and high hardness wrought steels’, SAE Paper 790890; 1979, Warrendale, PA, SAE.
12.
SMITHK. N., WATSONP., and TOPPERT. H.: J. Mater., 1970, 5, (2), 767–778.
13.
ACKERMANNL., CHARBONNIERJ., DESPLANCHESG., and KOSLOWSKIH.: in ‘First European conference on composite materials’, (ed. BunsellA. R. et al., 597-698; 1985, Bordeaux, European Association for Composite Materials.
FROSTN. E., MARSHK. J., and POOKL. P.: ‘Metal fatigue’, 41-129; 1974, Oxford, Clarendon Press.
16.
WILLIAMSG.: in Proc. Symp. on ‘High technology in defence’, Brighton, May 1983, Defence Manufacturers Association of Great Britain (DMA), paper 7.
17.
NAIRS. V., TIENJ. K., and BATESIT. C.: Int. Metals Rev., 1985, 30, (6), 275–290.
18.
HARRIESS. J. and WILKST. E.: 111 ‘Composite materials’ (Conf. Proc.), (ed. MatthewsF. L. et al.), Vol. 2, 2.133-2.127;1987, Amsterdam/London, Elsevier.
19.
ItD.. WILLIAMS and M. E. FINE: in ‘Composite materials’ (Conf. Proc.), 639-670; 1985, New York, AIME.
