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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.43  No.4 (2002)  >  pp.741-744

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Quantitative Research on Color of Cu-Mn-Zn Alloys

Yu-Ping Zhang1)2), Jin-Xu Zhang1) and Jian-Sheng Wu1)
1) Key Laboratory of the Ministry of Education for High Temperature Materials and Testing,Shanghai Jiaotong University
2) Department of Materials Science and Technology, Taiyuan Heavy Machinery Institute

In this paper, the color characteristics of ternary Cu–Mn–Zn alloys are investigated quantitatively and systematically. Using CIE LAB color system, the color parameters such as L, a and b, which were measured by a spectrophotometer, are used to describe the surface color of the forty-six experimental alloys. By the computer technique of data processing and graph editing, a set of the colorful color-composition diagrams of Cu–Mn–Zn alloys are established. The relationship between the chromaticity parameters and the composition is illustrated clearly. A series of equations are derived to correlate color parameters with the alloy compositions. As a result, the color of ternary Cu–Mn–Zn alloys can be calculated and estimated quantitatively.

copper-manganese-zinc, chromaticity, color, regression

Received: November 20, 2001
Accepted: February 27, 2002 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals



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