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| 常见彩色18K金首饰成分及硬度研究 |
| Research on composition and hardness of common colored 18 Karat gold jewelries |
| Received:August 24, 2021 |
| DOI： |
| 中文关键词: 18K金 X射线荧光光谱法(XRF) 火试金法 硬度 |
| 英文关键词: 18 Karat gold X-ray fluorescence spectrometry (XRF) fire assay method hardness |
| 基金项目:山东计量测试学会科技项目(2021KJ12)；山东计量测试学会科技项目(2020KJ09) |
| Author Name | Affiliation | E-mail | | LI Gui-hua* | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China
National Gold & Diamond Testing Center, Jinan 250014, China | guihual12@163.com | | YAN Fei | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China | | | Shan，Guang-qi | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China
National Gold & Diamond Testing Center, Jinan 250014, China | | | MA Xiao | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China
National Gold & Diamond Testing Center, Jinan 250014, China | | | TANG Ying | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China | | | LIU Xue-song | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China
National Gold & Diamond Testing Center, Jinan 250014, China | | | SUN Yong-jun | Jinan Rail Transit Group Co.Ltd., Jinan 250101, China | | | ZHU Pei-ming | National Gold & Diamond Testing Center, Jinan 250014, China | |
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| 中文摘要: |
| 采用X射线荧光光谱法(XRF)、火试金法和显微硬度仪对常见彩色18K金首饰的成分和硬度进行了检测。研究发现，常见彩色18K金首饰含金量主要在75.1%~75.5%范围内，红色18K金补口成分较单一，铜含量范围在19%~24.8%，黄色和白色18K金补口成分种类较多，同时发现一种含铟电铸工艺的黄色18K金。所测红色、黄色和白色18K金首饰的硬度范围分别为:190~290、130~260和153~243，同款式、形状相似的18K金首饰硬度呈现含镍白色18K金>红色18K金>黄色18K金的规律，源于不同的加工方法及补口元素对金不同的强化效果。 |
| 英文摘要: |
| The composition and hardness of common colored 18 Karat gold were tested by X-ray fluorescence spectrometry (XRF), fire assay and microhardness tester. The study found that the gold content of common colored 18 Karat gold jewelry is mainly in the range of 75.1~75.5%. The composition of red 18 Karat gold is relatively single, and its copper content is in the range of 19~24.8%. The composition types of yellow and white 18 Karat gold are fairly more. A new-type yellow 18 Karat gold with indium produced by electroforming is discovered. The hardness ranges of red, yellow and white 18 Karat gold jewelry are 190~290, 130~260 and 153~243, respectively. Due to different processing methods and different strengthening effects of filling elements on gold, the hardness of colored 18 Karat gold jewelries with the same category and similar shape ranks in the following sequence: white 18 Karat gold with nickel> red 18 Karat gold> yellow 18 Karat gold. |
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