含钇银铟合金硫化腐蚀及力学、光学性能研究

发布时间：2018-05-31 23:51

本文选题：稀土 + 腐蚀　；参考：《材料导报》2015年10期

【摘要】：采用真空熔炼炉制备了Ag-In稀土Y合金。利用XRD、扫描电镜、光纤光谱仪等设备对样品进行测试,实验结果表明,未添加稀土样品晶粒粗大,添加稀土钇能明显细化晶粒,枝晶发育细小,与925银相比抗硫化腐蚀能力增强。随着In含量的增加,析出Ag3In脆性相,对合金起到了强化作用,含钇银铟合金对可见光具有较高反射率,色调与纯银相比略显暖色。
[Abstract]:Ag-In rare earth Y alloy was prepared by vacuum melting furnace. The samples were tested by means of XRD, scanning electron microscope and optical fiber spectrometer. The results showed that the grains of the samples were coarse without adding rare earth elements, the grains of the samples were obviously refined by adding yttrium, and the dendrite was fine. The sulphide corrosion resistance of 925 silver is better than that of 925 silver. With the increase of in content, Ag3In brittleness phase was precipitated, which strengthened the alloy. Yttrium silver indium alloy had higher reflectivity to visible light, and the tonal color was slightly warmer than pure silver.
【作者单位】：昆明理工大学材料科学与工程学院;湖南生物机电职业技术学院机械及自动化系;国家珠宝玉石质量监督检验中心;
【基金】：国家自然科学基金(51361036) 昆明理工大学大学生创新计划项目(201310674204)
【分类号】：TG146.4;TG146.32

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