Muller A W, Maessen F J, Davidson C L
Dent Mater. 1990 Jan;6(1):63-8. doi: 10.1016/0109-5641(90)90048-j.
So that the influence of salivary components upon the corrosion rate of six dental NiCrMo alloys could be established, their mass loss was determined in a medium consisting of a modified Fusayama's artificial saliva to which 300 mg KSCN/L had been added (pH 5.0). Nickel was the main element released; its loss vs. immersion time curves on a log-log plot resembled straight lines. The total nickel losses after one week ranged from 0.4 to 12.5 micrograms/cm2. From the nickel loss, corrosion currents were calculated. The corrosion currents at 24 hours of immersion were up to 67% larger than the currents in a previous study of these alloys, where the medium consisted of a 20 mM KCI-5 mM phosphate buffer solution (pH 7). The alloys with the least molybdenum content showed the largest corrosion current increase.
为了确定唾液成分对六种牙科镍铬钼合金腐蚀速率的影响，在添加了300mg KSCN/L（pH 5.0）的改良舟桥人工唾液组成的介质中测定了它们的质量损失。镍是释放的主要元素；其在对数-对数图上的损失与浸泡时间曲线类似于直线。一周后的总镍损失范围为0.4至12.5微克/平方厘米。根据镍损失计算出腐蚀电流。浸泡24小时时的腐蚀电流比之前对这些合金的研究中的电流大67%，之前的研究中介质由20mM KCl - 5mM磷酸盐缓冲溶液（pH 7）组成。钼含量最低的合金显示出最大的腐蚀电流增加。
