PURPOSE: To provide a titled alloy having high mechanical strength and high corrosion resistance, by limiting the compsn. of a brass alloy consisting of Cu, Al, Fe, Ni, Zr and Zn.
CONSTITUTION: A brass alloy is constituted of 55W70wt% Cu, 1.0W6.0% Al, 0.1W4.0% Fe, 0.5W5.0% Ni, 0.1W3.0% Zr and, if necessary, 0.1W2.0% Si and the balance Zn, whereby an abrasion-resistant brass alloy having excellent mechanical properties such as tensile strength, elongation and hardness, having a low rate of displacement by abrasion and withstanding severe service conditions is obtained. The Al among the above-mentioned compsn. elements accelerates the formation of a β phase, and improves the strength of the alloy, and the Fe is effective in increasing the strength of an intermetallic compd. and fining the grain sizes of the cast texture. The Ni accelerates the formation of an α phase and improves the toughness of the matrix, and the Zr and Si contribute to the uniform deposition of the intermetallic compd. thereby improving the hardness thereof and improving considerably the abrasion resistance.
NAKAJIMA KUNIO
HOSODA MASAO
ISHIKANE RIYOUICHI
| JP43020916A |
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