NIOSHTIC-2 Publications Search

Metal alloy identifier.

Authors
Riley WD; Brown RD Jr.
Source
US Pat 4,692,875 1987 Sep; :1-9
NIOSHTIC No.
10005798
Abstract
To identify the composition of a metal alloy, sparks generated from the alloy are optically observed and spectrographically analyzed. The spectroscopic data, in the form of a full-spectrum plot of intensity versus wavelength, provide the "signature" of the metal alloy. This signature can be compared with similar plots for alloys of known composition to establish the unknown composition by a positive match with a known alloy. An alternative method is to form intensity ratios for pairs of predetermined wavelengths within the observed spectrum and then compare the values of such ratios with similar values for known alloy compositions, thereby to positively identify the unknown alloy composition.
Keywords
Metals; Metallurgical processes; Metal alloys; Spectrographic analysis
Publication Date
19870908
Document Type
Patent
Fiscal Year
1987
Identifying No.
PA 4,692,875
NIOSH Division
AVRC
Source Name
United States Patent 4,692,875
State
MD
Page last reviewed: June 16, 2022
Content source: National Institute for Occupational Safety and Health Education and Information Division