RAPID CONTROL ANALYSIS OF 18-PERCENT NICKEL MARAGING STEELS BY X-RAY SPECTROMETRY,

Abstract

Rapid nondestructive X-ray spectrometric procedures were developed for the analyses of molybdenum, manganese, titanium, nickel, cobalt, aluminum, and silicon in the 18-percent nickel maraging series of steels. Regression equations relating characteristic X-ray intensity ratios and corresponding element percentages were derived by assuming a simple linear regression model which neglects matrix effects. Element percentages in unknown steel samples are estimated either from graphs of the regression equations or the inverse working equations. Since primary standards were not available for calibration, the suitability of the method was assessed by the goodness of fit of the assumed model to the data. The method is considered suitable for checking the compositions of 18percent nickel maraging steels. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1965
Accession Number
AD0467156

Entities

People

  • Bernard J. Alley

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Calibration
  • Elements
  • Equations
  • Intensity
  • Manganese
  • Maraging Steels
  • Metals
  • Molybdenum
  • Spectrometry
  • Standards
  • Steel
  • Titanium
  • X Rays

Readers

  • Materials Science and Engineering.
  • Regression Analysis.
  • Surface Engineering/Surface Coating Technology.