The Measurement of Internal Stress in Electrodeposits

SummaryThe 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.

[1]  T. Hoar,et al.  An Instrument for the Continuous Measurement of Stress in Electrodeposits , 1956 .

[2]  T. Hoar,et al.  Stress in Nickel Electrodeposits , 1959 .

[3]  D. Macnaughtan,et al.  The hardness of electro-deposited nickel , 1928 .

[4]  H. Watkins,et al.  Measurement of Stress In Very Thin Electrodeposits , 1961 .

[5]  R. Hammond.  Stress in Electrodeposits , 1953 .

[6]  C. Williams,et al.  The Effect of Chromium Plating on the Fatigue Strength of Steel , 1954 .

[7]  W. Wood.  LXXV. Examination of electro-deposited nickel coating a by x-ray diffraction , 1935 .

[8]  A. Brenner,et al.  Physical properties of electrodeposited chromium , 1948 .

[9]  E. J. Mills.  I. On electrostriction , 1878, Proceedings of the Royal Society of London.

[10]  H. Davies,et al.  The Effect of Surface Conditions and Electro-Deposited Metals on the Resistance of Materials to Repeated Stresses* , 1930 .

[11]  W. Wood.  XLVI. The effect of lattice distortion and fine grain on the X-ray spectra of metals , 1933 .

[12]  William Hume-Rothery,et al.  The structure of electro-deposited chromium. A correction , 1944, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[13]  H. Pick.  A New Method of Analysing the Stresses and Strains in Deposited Coatings , 1954 .

[14]  A. Brenner,et al.  A spiral contractometer for measuring stress in electrodeposits , 1949 .

[15]  W. Wood.  The influence of the crystal-orientation of the cathode on that of an electro-deposited layer , 1931 .

[16]  G. Stoney.  The Tension of Metallic Films Deposited by Electrolysis , 1909 .

[17]  H. Fry.  A Study of Cracking in Chromium Deposits , 1954 .

[18]  W. Hume-rothery,et al.  The structure of electro-deposited chromium , 1943, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[19]  A. Brenner,et al.  Calculation of stress in electrodeposits from the curvature of a plated strip , 1949 .