Abstract

A spectrographic method has been developed for the determination of the following elements, in the given concentration ranges, in aluminum alloys: manganese 0.01-0.8%, iron 0.1-6.0%, magnesium 0.1-2.0%, copper 0.3-10.0%, zinc, 0.03-5.0%, silicon 0.1-6.0%, chromium 0.02-0.4%, nickel 0.02-0.6%, titanium 0.01-0.1%, lead 0.01-1.0%, calcium 0.1-2.0%. The standard errors of estimate, calculated for each of the working curves used, range from 11.4% to 14.0%. The method has proven itself highly satisfactory for the classification of unknown types of aluminum alloys and, to a limited extent, in specification analyses. It is versatile since it can be applied to a sample of any size, shape or metallurgical history.

Modifications of Spectrographic Methods for Analysis of Aluminum and Its Alloys

R. W. Callon and J. E. Burgener
J. Opt. Soc. Am. 34(9) 543-549 (1944)

Spectrographic Standard Samples of Aluminum Alloys

J. Opt. Soc. Am. 36(12) 706-706 (1946)

The Spectrochemical Analysis of Nickel Alloys*

Edwin K. Jaycox
J. Opt. Soc. Am. 37(3) 159-162 (1947)

The Spectrochemical Analysis of Copper Base Alloys*

Edwin K. Jaycox
J. Opt. Soc. Am. 35(2) 175-179 (1945)

The Use of Briquetted Samples in the Spectrochemical Analysis of Carbon and Alloy Steels and Other Metals

J. F. Woodruff
J. Opt. Soc. Am. 40(4) 192-196 (1950)