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| 18K金首饰中镍释放量与耐蚀性的关系 |
| Relationship between the Release of Nickel and Corrosion Resistance in 18 Carat Gold Jewelry |
| Received:April 21, 2016 |
| DOI： |
| 中文关键词: 金属材料 镍释放量 耐腐蚀性 热膨胀 18K金 |
| 英文关键词: metallic material nickel release corrosion resistance thermal expansion 18K gold |
| 基金项目:国家质检总局科技计划项目(2012QK246)、山东省质监系统科技计划项目(2016KY05)。 |
| Author Name | Affiliation | E-mail | | LI Guihua | National Gold & Diamond Testing Center, Shandong Provincial Key Laboratory of Metrology and Measurement,Shandong Institute of Metrology, Jinan 250014, China | guihual12@163.com | | SUN Yongjun | Shandong Corporation of Construction and Engineering, Jigang Company, Jinan 250101, China | | | ZHANG Fengxia | National Gold & Diamond Testing Center, Shandong Provincial Key Laboratory of Metrology and Measurement,Shandong Institute of Metrology, Jinan 250014, China | | | CHENG Youfa | National Gold & Diamond Testing Center, Shandong Provincial Key Laboratory of Metrology and Measurement,Shandong Institute of Metrology, Jinan 250014, China | | | LOU Laichang | National Gold & Diamond Testing Center, Shandong Provincial Key Laboratory of Metrology and Measurement,Shandong Institute of Metrology, Jinan 250014, China | |
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| 中文摘要: |
| 采用氧气乙炔火枪制备了4种镍含量分别为0%、2.5%、5%和8%的18K金合金，用扫描电子显微镜、能谱仪、电感耦合等离子发射光谱仪、电化学工作站和热膨胀仪研究了样品在人工汗液中的镍释放和耐腐蚀行为。研究发现，镍释放量与合金的耐腐蚀性负相关；耐腐蚀性与加工条件有关，与镍含量也存在一定的相关性；镍含量增加，原子间结合力减弱，耐腐蚀能力下降，镍释放量增加。 |
| 英文摘要: |
| Four kinds of 18K gold alloys containing (mass fraction) 0%, 2.5%, 5% and 8% Ni, respectively, were prepared using an oxygen acetylene gun. The release of nickel and corrosion behavior of the samples in artificial sweat were analyzed by the inductively coupled plasma emission spectrometry (ICP-AES), electrochemical workstation, scanning electron microscopy (SEM), energy spectrometry (EDS) and dilatometer (DIL). The results show that the release of nickel from the alloy is inversely proportional to the corrosion resistance which is related to the processing conditions and the nickel content. With the nickel content increasing, the binding force between atoms weakens, leading to the corrosion of the alloys and the release of nickel. |
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