Cu含量对Fe-Ti机械合金化的影响

Effect Cu Amounds on Mechanical Alloying of Fe-Ti

应用机械合金化法(MA)制备了Ti50Fe50-xCux(x=5%、10%、20%)三元合金,通过XRD、DTA等测试手段,研究MA过程中样品的相结构与热稳定性的变化,进而探讨第三组元Cu对固态反应过程及产物结构的影响.研究结果表明:Cu的含量并未明显改变Ti50Fe50-xCux(x=5%、10%、20%)的机械合金化过程,只是所得非晶产物并非为单一的非晶相,其中含有一定量的微晶及纳米晶,而使非晶相的晶化有所减慢.

The Ti_(50)Fe_(50-x)Cu_x(x=5%?10%?20%)alloy has been prepared by mechanical alloying. By means of XRD and DTA ,the phase structure and thermal ability during MA have been analyed.The effects of Cu on the MA process and on the structure of product have also been investigated. It is found that different of Cu makes neation mechanism very alike ,but armorphous phase in MA process is not uniform meanwhile mirocrystal exits,which restrains crydtallization.