摘要
通过金相组织分析、X射线衍射分析、硬度测试、差热分析等方法研究了Ag-Mg-Ni合金在不同内氧化处理条件下的组织、性能变化。研究表明,Ag-Mg-Ni合金在大气气氛中进行内氧化,360℃时再结晶完毕,高于360℃时合金中的Mg和Ni开始氧化成MgO和NiO颗粒,弥散分布在晶粒中,使合金的硬度开始升高;760℃时内氧化完毕,此时合金的硬度达到最大值。
The property and related microstructure of an Ag-Mg-Ni alloy in different internal oxidation conditions were studied by means of hardness test, X-ray diffraction （XRD）, scanning electron microscopy （SEM） and differential thermal analysis （DTA）. The results show that, in the process of internal oxidation in atmosphere, recrystallization process was ended at 360℃. When the temperature exceeded 360℃, Mg and Ni were oxidized to MgO and NiO particles, which were distributed in the grains, and made the hardness increase. At 760℃, the internal oxidation finished, and the Vicker＇s hardness reached the peak 161 Hv0.1.
出处
《贵金属》
CAS
CSCD
北大核心
2013年第1期29-32,共4页
Precious Metals
基金
云南省自然科学基金重点项目(2010ZC253)资助
关键词
金属材料
Ag-Mg-Ni合金
内氧化
弥散强化
差热分析
metal materials
Ag-Mg-Ni alloy
intemal oxidation
dispersion strengthening
differentialthermal analysis （DTA）
