Hisatsune K, Ohta M, Yamane M
Shika Rikogaku Zasshi. 1979 Oct;20(52):228-32.
The ageing processes in dental Ag-Pd-Cu-Au alloy were investigated by means of electrical resistivity measurements during anisothermal annealing. The main results obtained are as follows; (1) There are two obvious precipitation processes (stage I and stage II) during anisothermal annealing after quenching from above critical temperature. And the apparent difference in stage I attribute to solution treatment temperature. (2) Stage I occured at lower temperature, is one ageing process by the migration and annihilation of quenched-in excess vacancies. Another is stage II at higher temperature by the diffusion of equilibrium vacancies.
通过在非等温退火过程中测量电阻率，研究了牙科用Ag-Pd-Cu-Au合金的时效过程。得到的主要结果如下：(1) 从高于临界温度淬火后的非等温退火过程中有两个明显的析出过程（阶段I和阶段II）。阶段I的明显差异归因于固溶处理温度。(2) 阶段I发生在较低温度下，是一个由淬火引入的过量空位的迁移和湮灭引起的时效过程。另一个是在较高温度下由平衡空位扩散引起的阶段II。
