Abstract

This paper presents a part of the work being done at the Research Staff of General Motors Corporation to determine the applicability of recent scientific information to the procedures of spectrographic analysis of low alloy steel under conditions of receiving inspection. The desired method is one which makes use of the point-to-plane technique and gives accurate results even though the submitted samples have wide variations in size, shape, and metallurgical history. A previous paper described the selection of line pairs. This paper describes our investigations as to the function of an air jet blown through the analytical gap and its value in increasing the reproducibility and accuracy of analytical results.

Selection of Line Pairs for the Spectrographic Analysis of Low Alloy Steel

D. L. Fry and T. P. Schreiber
J. Opt. Soc. Am. 44(2) 159-162 (1954)

Spectrographic Analysis of High Cobalt (Vitallium) Alloys

Y. T. Sihvonen, D. L. Fry, R. E. Nusbaum, and R. R. Baumgartner
J. Opt. Soc. Am. 39(3) 257-260 (1949)

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)

The Use of Briquets Formed from Metal Grindings for the Spectrographic Analysis of Steel*

R. E. Nusbaum, D. L. Fry, and J. W. Hackett
J. Opt. Soc. Am. 34(1) 33-40 (1944)

An Investigation of the Use of Geiger-Müller Photoelectron Counters in the Spectrographic Analysis of Phosphorus in Steel

Richard Hanau and Ralph A. Wolfe
J. Opt. Soc. Am. 38(4) 377-383 (1948)