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| 火试金分析中退火工艺的研究 |
| Study on Annealing Process on Test Results in Fire Assay |
| Received:June 17, 2019 |
| DOI： |
| 中文关键词: 分析化学 火试金 退火 金银合金 显微硬度 |
| 英文关键词: analytical chemistry fire assay annealing gold and silver alloys micro-hardness |
| 基金项目:山东省质量技术监督系统科技计划项目(2017KY12Z00) |
| Author Name | Affiliation | E-mail | | LI Guihua* | 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 | | HUANG Zhun | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China
National Gold & Diamond Testing Center, Jinan 250014, China | | | WANG Ping | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China
National Gold & Diamond Testing Center, Jinan 250014, China | | | ZHU Peiming | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China | | | DING Xiuyun | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China
National Gold & Diamond Testing Center, Jinan 250014, China | | | LIU Xuesong | Shandong Provincial Key Laboratory of Metrology and Measurement, Shandong Institute of Metrology, Jinan 250014, China
National Gold & Diamond Testing Center, Jinan 250014, China | |
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| 中文摘要: |
| 研究了火试金分析过程中退火工艺对检测结果的影响，分别采用扫描电镜和显微硬度仪研究了不同退火条件下金银合金的组织结构和力学性能。结果表明，火枪退火和炉内退火对金含量的检测影响不大，两种退火方式下的金银合金具有相似的微区结构和力学性能。炉内退火操作条件可为400℃退火10 min，或500℃退火5 min以上。 |
| 英文摘要: |
| The effects of annealing process on the test results during the fire assay were studied. The microstructure and mechanical properties of gold-silver alloys under different annealing conditions were investigated by scanning electron microscopy and micro-hardness tester. The results show that the gun annealing and furnace annealing have little effect on the detection of gold content, which is attributed to the similar micro-domain structure and mechanical properties of the gold-silver alloys under the two annealing modes. The furnace annealing conditions can be annealed at 400°C for 10 min, or at 500°C for more than 5 min. |
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