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Spark testing in the identification of stainless steel and superalloy scrap.

Authors
Larrain-JM; Riley-WD; Brown-RD Jr.
Source
Recycle and secondary recovery of metals: proceedings of the International Symposium on Recycle and Secondary Recovery of Metals and the Fall Extractive and Process Metallurgy Meeting, December 1-4, 1985, Fort Lauderdale, Florida. Taylor PR, Sohn HY, Jarrett N, eds. Warrendale, PA: Metallurgical Society, 1987 Feb; :365-379
Link
NIOSHTIC No.
10004831
Abstract
The Bureau of Mines is studying methods of identification of scrap that will lead to better segregation, conservation of strategic materials, and better utilization of existing resources. Spark testing--the visual examination of the spark stream generated when a metal is struck against a grinding wheel--has been used successfully for many years in the classification of alloy steels. Research using spectrophotometric methods to determine the characteristics of the light emitted by the sparks, and a minicomputer to recall and compare spark patterns is described. The utility of this instrumental method for the rapid identification of stainless steels and superalloys is discussed.
Keywords
Metals; Waste-treatment; Analytical-processes
Publication Date
19870201
Document Type
OP; Conference/Symposia Proceedings
Editors
Taylor-PR; Sohn-HY; Jarrett-N
Fiscal Year
1987
NTIS Accession No.
NTIS Price
ISBN No.
9780873390071
Identifying No.
OP 92-85
NIOSH Division
AVRC
Source Name
Recycle and secondary recovery of metals: proceedings of the International Symposium on Recycle and Secondary Recovery of Metals and the Fall Extractive and Process Metallurgy Meeting, December 1-4, 1985, Fort Lauderdale, Florida
State
PA; MD
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