传统足金／Au999在黄金首饰消费中占据了最大份额，它们具有高贵的黄色和优异的耐蚀性，但硬度过低的问题制约了饰品的艺术价值，也给制造和使用带来了问题。该文采用钴、锑、钪对足金进行了多元微合金化处理，并采用人工汗液浸泡法和电化学试验法检测了合金的腐蚀倾向和抗变色性能。试验结果表明：改性足金的初始颜色与Au999之间的色差仅处于肉眼可觉察的区间，它在人工汗液中的颜色变化率与其所处状态有关，呈现“形变时效态＞固溶态＞冷形变态”的顺序。改性足金在人工汗液中存在钝化行为，耐点蚀性能与Au999相当，表现出优良的抗变色性能。
Traditional pure gold/Au999 jewelry has the noble yellow glows and excellent corrosion resistance and accounts for the biggest share in gold jewelry consumption,however,its low hardness restricts the artistic value and brings problems in manufacture and application.In this paper,pure gold was multi-alloyed with cobalt,antimony and scandium,and the corrosion tendency and the anti-chromism property of the modified gold were tested by artificial sweat soaking and electrochemical method.The results show that the original chromatic aberration of the modified gold from pure gold is only discernible between the range of naked eye,and the color change rate after soaking in artificial sweat is related to its state,which shows the order"cold working and aging state>solid solution state>cold working state".The modified gold presents passivation behavior in artificial sweat,its pitting corrosion resistance is close to pure gold and shows excellent discoloration resistance.
参考文献
| [1] | GB 11887-2012.首饰贵金属纯度的规定及命名方法[S].北京:中国标准出版社,2012. |
| [2] | Corit C W .Metallurgy of microalloyed 24 carat golds[J].Gold Bul-letin,1999,32(2):39-47. |
| [3] | 赵怀志;宁远涛.金[M].长沙:中南大学出版社,2003 |
| [4] | 杨青青,熊惟皓,张杰.Au-Ti足金的强化机理研究[J].稀有金属材料与工程,2006(12):1904-1907. |
| [5] | 宁远涛.合金元素对Au的强化效应与应用[J].贵金属,2002(03):51-56. |
| [6] | Madeleine du Toit;Elma van der Lingen;Lizelle Glaner .The development of a novel gold alloy with 995 fineness and increased hardness[J].Gold Bulletin,2002(2):46-52. |
| [7] | 王昶,袁军平.K红金首饰颜色问题的探讨[J].黄金,2009(08):5-8. |
| [8] | EN 1811:2011.Reference test method for release of nickel from all post assemblies which are inserted into pierced parts of the human body and articles intended to come into direct and prolonged contact with the skin[S].Brussel:European Committee for standardization,2011. |
| [9] | 李在清;喻柏林;焦书兰.颜色测量基础[M].北京:技术标准出版社,1980 |
| [10] | 刘金萍.关于物质颜色与结构之间相关规律性的研究[J].沈阳大学学报,2004(02):94-96. |
| [11] | 张玉平 .金属材料的颜色定量研究及其在无镍白色铜合金开发中的应用[D].上海交通大学,2003. |
| [12] | 戴晓元,夏长清,李杨勇,孙振起.含钪Al-Zn-Mg-Cu-Zr合金组织性能的研究[J].中国稀土学报,2006(05):599-604. |
| [13] | 刘建华,梁馨,李松梅.含钪铝镁合金微生物腐蚀行为的研究[J].中国稀土学报,2006(01):81-85. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%