G - Physics – 01 – N
Patent
G - Physics
01
N
150/4
G01N 33/20 (2006.01) G01N 31/22 (2006.01)
Patent
CA 1257830
ABSTRACT OF THE DISCLOSURE An aqueous solution of silver nitrate is effective to detect phosphorus segregates in a metallic material, particularly cast steel. Segregated phosphorus can be detected by etching a surface of steel to be tested, attaching test paper onto the steel surface, applying an aqueous solution of 0.1 to 80% by weight of silver nitrate to the paper, maintaining the paper in contact with the steel surface for a sufficient time, removing the paper from the steel surface, and subjecting the paper to fixing treatments.
467715
Funahashi Yoshiko
Harimaya Senichi
Kamino Yoshikazu
Kitaoka Hidenari
Matsumura Yasuharu
Kawasaki Steel Corporation
Moffat & Co.
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