Nanostructured Fe3Al intermetallic compounds were produced by using hydrogen arc plasma method（HP）. The microstructures of the nano Fe3Al were characterized by means of XRD, DSC-TG and TEM. The results shows that th...Nanostructured Fe3Al intermetallic compounds were produced by using hydrogen arc plasma method（HP）. The microstructures of the nano Fe3Al were characterized by means of XRD, DSC-TG and TEM. The results shows that the intermetallic compounds have ordered B2 structure and the average particle of the as synthesized is about 45nm. The B2 structure changes to highly ordered DO3 structure after annealing in vaccum at 480℃. The temperature of phase transformation is 545.3℃.展开更多
The effect of the addition of rare earths in Fe-based high chromium alloy powders on elements distribution in matrix materials and mechanical properties were studied. The results show that the addition of cerium can i...The effect of the addition of rare earths in Fe-based high chromium alloy powders on elements distribution in matrix materials and mechanical properties were studied. The results show that the addition of cerium can increase the chromium amount in carbonides and increase the micro-hardness after carbonization and the wear-resistant property of materials.展开更多
文摘Nanostructured Fe3Al intermetallic compounds were produced by using hydrogen arc plasma method（HP）. The microstructures of the nano Fe3Al were characterized by means of XRD, DSC-TG and TEM. The results shows that the intermetallic compounds have ordered B2 structure and the average particle of the as synthesized is about 45nm. The B2 structure changes to highly ordered DO3 structure after annealing in vaccum at 480℃. The temperature of phase transformation is 545.3℃.
文摘The effect of the addition of rare earths in Fe-based high chromium alloy powders on elements distribution in matrix materials and mechanical properties were studied. The results show that the addition of cerium can increase the chromium amount in carbonides and increase the micro-hardness after carbonization and the wear-resistant property of materials.
