含钇银铟合金硫化腐蚀及力学、光学性能研究  

Sulfide Corrosion Behavior,Mechanical and Optical Properties of Silver-Indium Alloy with Yttrium Addition

作　　者：贾清翠 于杰[1] 陈敬超[1] 刘琳静[2] 卢雯婷[3] 甄翠玲[1] 

机构地区：[1]昆明理工大学材料科学与工程学院,昆明650093 [2]湖南生物机电职业技术学院机械及自动化系,长沙410127 [3]国家珠宝玉石质量监督检验中心,昆明650000

出　　处：《材料导报》2015年第10期94-96,104,共4页Materials Reports

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)

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。Silver-indium alloy with Y addition was made by vacuum melter. The results of XRD, scanning elec- tron microscopy and fiber spectrometer showed that the sample without Y addition had coarse grain, but the sample with Y addition had obvious fine dendrite. Silver-indium alloy with Y addition had stronger corrosion resistance than the sample of 925Ag. With the addition of indium, Aga In had a strengthening effect on the alloy. Silver-indium alloy with Y addition possessed high reflectance to visible light, and a color slightly warmer than pure silver.

关 键 词：稀土 腐蚀 银铟合金 反射率 

分 类 号：TG146.3[一般工业技术—材料科学与工程]