Moberg L E, Odén A
Acta Odontol Scand. 1985 Jul;43(3):179-90. doi: 10.3109/00016358509064148.
One conventional amalgam and two amalgams with a high copper content were stored in 0.9% NaCl solution buffered with phosphate to pH 6. In one experimental series the amalgams were placed in contact with a gold alloy. Every 7 weeks the solutions were changed and analyzed with regard to elements released from the amalgams. The microstructure of the specimens was studied in a scanning electron microscope before immersion and after 7 and 35 weeks in the solution. All the amalgams corroded along the grain boundaries in the gamma 1 phase. Corrosion was greatest in the gamma 2 phase of ANA 68, in the eta phase of ANA 2000 and in the reaction zone (eta + gamma 1) surrounding the Ag-Cu-eutectic particles of Dispersalloy. The microstructure of the corroded amalgams showed similarities to amalgams corroded in vivo. The change in microstructure observed in cross-sections of the corroded specimens was related to the amounts of corrosion products released into the saline solution.
一种传统汞合金和两种高铜汞合金被储存在用磷酸盐缓冲至pH 6的0.9%氯化钠溶液中。在一个实验系列中，将汞合金与一种金合金接触。每7周更换一次溶液，并分析从汞合金中释放出的元素。在浸泡前以及在溶液中浸泡7周和35周后，用扫描电子显微镜研究标本的微观结构。所有汞合金均沿γ1相的晶界发生腐蚀。ANA 68的γ2相、ANA 2000的η相以及Dispersalloy银铜共晶颗粒周围的反应区（η + γ1）腐蚀最为严重。腐蚀后的汞合金微观结构与体内腐蚀的汞合金相似。在腐蚀标本的横截面中观察到的微观结构变化与释放到盐溶液中的腐蚀产物量有关。
