热处理工艺对Ag-Mg-Ni合金内氧化的影响
发布时间：2019-08-01 06:43
【摘要】：Ag-Mg-Ni合金的内氧化影响其显微组织和力学性能。研究了Ag-0.3Mg-0.2Ni合金在不同热处理条件下的显微组织和力学性能变化。结果表明,随着热处理温度增加,合金的显微硬度先降后升,金相显微组织由典型的纤维状特征转变为等轴晶;随着保温时间延长,晶粒逐渐长大,硬度提高;热处理温度在400℃以上时,Ag-Mg-Ni合金开始发生内氧化,升高温度能够加速内氧化过程,600℃保温6 h或800℃保温2 h可获得显微硬度(Hv_(0.02))在140以上的Ag-0.3Mg-0.2Ni。
[Abstract]:The internal oxidation of Ag-Mg-Ni alloy affects its microstructure and mechanical properties. The microstructure and mechanical properties of Ag-0.3Mg-0.2Ni alloy under different heat treatment conditions were studied. The results show that with the increase of heat treatment temperature, the microhardness of the alloy decreases at first and then increases, and the metallographic microstructure changes from typical fiber-like characteristics to equiaxed crystals, and with the prolongation of holding time, the grains grow up and the hardness increases. When the heat treatment temperature is above 400 鈩，
本文编号：2521588
[Abstract]:The internal oxidation of Ag-Mg-Ni alloy affects its microstructure and mechanical properties. The microstructure and mechanical properties of Ag-0.3Mg-0.2Ni alloy under different heat treatment conditions were studied. The results show that with the increase of heat treatment temperature, the microhardness of the alloy decreases at first and then increases, and the metallographic microstructure changes from typical fiber-like characteristics to equiaxed crystals, and with the prolongation of holding time, the grains grow up and the hardness increases. When the heat treatment temperature is above 400 鈩，
本文编号：2521588
本文链接：https://www.wllwen.com/kejilunwen/jiagonggongyi/2521588.html
