An Alloy Design by means of an Interpolating Function

The theory of designing an alloy by means of an interpolating function is proposed. This method is the extension of Schagen's method for interpolating data in two dimensions in polynomial. The calculating procedure includes the estimating of the expected value, the determining of the function in inputting an arbitrary point (i.e. composition of alloy, heating condition, or processing conditions etc.), and the obtaining of limits from the contour program. The composition of alloy in which the coherent strength was > 294 MPa in Cu--Mn--Zn--Sn system was designed by this method. The composition of alloy with the strength 392 MPa was obtained from 18 sample points. Graphs. 2 ref.--Y.Z.