(1. 上海交通大學(xué) 教育部高溫材料及高溫測(cè)試開放實(shí)驗(yàn)室， 上海 200030；
2. 太原重型機(jī)械學(xué)院， 太原 030024;
3. 上海欣品線材有限公司， 上海 200030)
摘 要: 采用CIE LAB表色系統(tǒng)，用明度L *、色品 a *和b *描述合金的顏色。通過分光光度計(jì)定量地測(cè)定了Cu-Zn二元黃銅的色度參數(shù)，探討了L *，a *，b *和C *隨Zn含量的變化規(guī)律，給出了常用二元黃銅表面色的定量定性結(jié)果。研究表明，Cu-Zn二元合金的色度參數(shù)a*和b*值可以通過數(shù)學(xué)公式模擬計(jì)算，從而預(yù)計(jì)二元黃銅的表面色。
關(guān)鍵字: Cu-Zn； 黃銅； 顏色； 色度
（1. Open Lab of the Ministry of Education for High Temperature
Materials and Testing， Shanghai Jiaotong University， Shanghai 200030， P.R.China;
2. Taiyuan Heavy Machinery Institute， Taiyuan 030024, P.R.China;
3. Shanghai Xinpin Linear Products Co. Ltd.， Shanghai 200030, P.R.China）
Abstract:The color characteristics of Cu-Zn binary alloys were investigated quantitatively. Using CIE LAB color system，the surface color of the alloy was described by chromaticity parameters L *，a * and b *，which were measured by the spectrophotometer. The changing law of color parameters (L *，a *，b * and C *) with Zn content was demonstrated. Therefore，the surface colors of some standard CuZn binary alloys were given. The results show that a * and b * values are changed with Zn content abiding by the polynomial equation so that the surface color of the Cu-Zn alloy system can be forecast.
Key words: Cu-Zn；brass；color；chromaticity
