Engineering in Medicine

The development of a multi-specimen slow cycle corrosion fatigue machine is described and discussed. This equipment allows up to eight specimens to be tested simultaneously in rotating bending at frequencies in the range 1–9 Hz. Each specimen may be immersed in its own environment and potentiostatically controlled. Circuits are described which allow the corrosion current and potential of each specimen to be monitored throughout testing.

Copies of the transactions can be obtained from M. G. Ehrlich, MD, Massachusetts General Hospital, Boston, Massachusetts 02114, USA: for the enclosed sum of †12.00 (including domestic or overseas mailing).