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本文报导了用光学显微镜、X 射线衍射、电阻和硬度测量等方法对Ag-0.12%Mg、Ag-0.24%Mg、Ag-0.47%Mg 合金在2-8kg/cm~2氧压下。550—800°范围内氧化动力学、组织、结构和性能的研究结果:氧化深度的平方与氧化时间及氧压力的平方根成正比。与 Mg 含量成反比,氧化深度平方的对数与绝对温度的倒数成线性关系;合金的晶格常数、硬度和电阻率随温度的升高而减小.氧化物粒子则随温度升高而增大,氧压力对上述参数影响不显著。通过对内氧化动力学、组织、结构和性能之间的关系的分析指出,提高内氧化速度是改善 Ag-Mg 合金性能的重要途径。
In this paper, Ag-0.12% Mg, Ag-0.24% Mg and Ag-0.47% Mg alloys were exposed to oxygen at 2-8 kg / cm ~ 2 using optical microscopy, X-ray diffraction, electrical resistance and hardness measurements. Oxidation kinetics, microstructure, structure and properties in the 550-800 ° range: The square of the oxidation depth is proportional to the oxidation time and the square root of the oxygen pressure. In inverse proportion to the Mg content, the logarithm of the square of the oxidation depth is linear with the inverse of the absolute temperature; the lattice constant, the hardness and the resistivity of the alloy decrease with increasing temperature. The oxide particles increase with increasing temperature Large, oxygen pressure on the above parameters had no significant effect. Through the analysis of the relationship between the internal oxidation kinetics, structure, structure and properties, it is pointed out that increasing the internal oxidation rate is an important way to improve the properties of Ag-Mg alloy.