You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.


    Significance of Ductility and New Methods of Measuring the Same

    Published: Jan 1987

      Format Pages Price  
    PDF (148K) 13 $25   ADD TO CART
    Complete Source PDF (5.8M) 384 $65   ADD TO CART


    Cracks in plated metal layers will develop if the sum of the tensile stresses exceeds the tensile strength of the plating. Stress will concentrate on irregularities in the plated surface, such as pores and inclusions. The ductility of the plating is the most important influence on the stress concentration factor. Therefore, its measurement is essential for the evaluation of a plated surface. Two methods of measuring ductility are described, both using the effect of bulging the plating, thereby exceeding the tensile strength of the plated surface layer. As the deformation can be described mathematically, it is possible to convert the results into linear extensibility, that is, the physical value of the ductility.


    ductility, electroplating, corrosion

    Author Information:

    Rolff, R
    Metrologist, Schering, A. G., Plating Division,

    Committee/Subcommittee: B08.01

    DOI: 10.1520/STP20027S

    CrossRef ASTM International is a member of CrossRef.