The Measurement of Internal Stress in Electrodeposits

Summary

The fundamental principles and underlying methods of measuring internal stress in electrodeposits are reviewed and special attention is given to the bent strip methods. The advantages of the Hoar-Arrowsmith continuous measuring null instrument (Trans Inst Metal Finishing, 1957, 34, 354) are emphasized and a refined theoretical treatment is presented. A comparison is made between the formulae derived by various authors, and approximations involved are examined. Percentage errors, which are frequently quite large, are presented for many of the cases.