TZM-La2O3 Alloy
- Details
- Category: Molybdenum knowledge
- Published on 26 August 2015
- Written by yiping
- Hits: 304
With advances in technology and society, performance requirements more stringent to TZM alloy. After the study, adding rare earth can well improve the performance of TZM alloys, including alloy’s recrystallization temperature, ductility and toughness. And adding metal La2O3 in TZM alloy has been widespread concern.
Related scholars using powder metallurgy method with Mo powder, TiH2, ZrH2, of La2O3 and graphite as raw material produce TZM-La2O3 alloy. And then employing pressing process produces TZM-La2O3 0.5mm thick sheet. By studying the recrystallization temperature, strength and toughness of TZM alloy which influence by La2O3 and compare the microstructure and properties effects of TZM-La2O3 by different methods of rolling to better improve the performance of the alloy, to expand its range of applications.
Add La2O3 can refine TZM alloy grain to increase the density and strength. Meanwhile, La2O3 significantly delayed the recrystallization of TZM alloy and with the increase of La2O3 the recrystallization of TZM alloy increase as well. In addition, La2O3 particles for the dislocation has a strong pinning effect making tensile strength and elongation is better than TZM alloy and the overall performance is also good.
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