Patent ID: 9080226
Filing Date: 2015-07-14
Classification: C22C,C22F

Abstract:
1. A method of preparing a mono-phased alpha structure alloy from a bi-phased alpha-beta structure alloy, comprising the steps of providing an initial bi-phased alpha-beta structure alloy consisting of: Between 44.1 and 45.6 parts by weight of Cu; between 35.6 and 37.1 parts by weight of Zn; between 11.8 and 12.7 parts by weight of Ni; between 4.6 and 5.4 parts by weight of Mn; between 1.35 and 1.85 parts by weight of Pb; and hot treating said initial bi-phased alpha-beta structure alloy one or several times at a temperature between 630° C. and 720° C. to transform the bi-phased alpha-beta structure of said initial bi-phased alpha-beta structure alloy into a mono-phased alpha structure.