Effect of different crystal forms of ZrO2 on the microstructure and properties of tungsten alloys
Source abstract
Abstract
The effects of different crystal forms of zirconia (m-ZrO 2, t-ZrO 2, c-ZrO 2 ) on the microstructure and properties of tungsten alloys were investigated using pure tungsten (PW) and tungsten alloys strengthened with different crystal forms of zirconia. The microstructure and compressive and tensile properties of the four metals were comprehensively compared. The results show that the microstructure and properties of tungsten alloys strengthened by zirconia with different crystal forms are remarkably similar, which is attributed to the high similarity of the morphology and distribution of zirconia in tungsten alloys. Meanwhile, the properties of tungsten alloys were significantly improved compared with PW. The ultimate compressive strength and failure strain at room temperature increased by 50% and 97% respectively, and the ultimate compressive strength at high temperature increased by 15–30% compared with PW. The characterization of the rolled tungsten alloy shows that the addition of zirconia can reduce the formation of shear bands, increase the texture strength, and make the texture type, which is mainly composed of {111} 〈110〉 and {001} 〈100〉, more uniform. The high-temperature tensile results show that the ultimate tensile strength of the tungsten alloy is approximately 30% higher than that of PW at 1000 °C, and the dimples are dense and small compared with PW.
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References (31)
Show source-provided references
1. Pure tungsten and oxide dispersion strengthened tungsten manufactured by selective laser melting: microstructure and cracking mechanism
2. Investigation of microstructure and microhardness of pure W and W-2Y2O3 materials before and after ion-irradiation10.1016/j.ijrmhm.2014.06.004 ↗
3. Mechanical properties and thermal stability of pure W and W-0.5 wt%ZrC alloy manufactured with the same technology10.1016/j.msea.2017.12.112 ↗
4. Selective laser melting additive manufacturing of pure tungsten: role of volumetric energy density on densification, microstructure and mechanical properties10.1016/j.ijrmhm.2019.105025 ↗
5. Effect of grain orientation and heat treatment on mechanical properties of pure W10.1016/j.jnucmat.2014.07.034 ↗
6. Recrystallization behavior of hot-rolled pure tungsten and its alloy plates during high-temperature annealing10.1016/j.nme.2018.04.004 ↗
7. Microstructure evolution of hot-rolled pure and doped tungsten under various rolling reductions10.1016/j.jnucmat.2020.152074 ↗
8. Compressive properties and deformation behaviors of sintered W-m-ZrO2 alloy under different temperature10.1016/j.msea.2022.144238 ↗
9. Grain boundary strengthened W-ZrB2 alloy via freeze-drying technique and spark plasma sintering10.1016/j.fusengdes.2019.111333 ↗
10. The superior thermal stability and tensile properties of hot rolled W-HfC alloys10.1016/j.ijrmhm.2019.02.018 ↗
11. Achieving high strength and ductility in ODS-W alloy by employing oxide@W core-shell nanopowder as precursor10.1038/s41467-021-25283-2 ↗
12. Effects of doping route on microstructure and mechanical properties of W-1.0wt.%La2O3 alloys10.1016/S1003-6326(20)65462-0 ↗
13. Green synthesis of tungsten-doped CeO2 catalyst for selective catalytic reduction of NO with NH3 using starch bio-template10.1016/j.apsusc.2020.147719 ↗
14. Preparation and characterization of Mo/ZrO2–Y2O3 composites10.1016/j.ijrmhm.2018.04.018 ↗
15. Evaluating compressive property and hot deformation behavior of molybdenum alloy reinforced by nanoscale zirconia particles10.1016/j.jallcom.2020.158289 ↗
16. Microstructure and mechanical properties of W-Al2O3 alloy plates prepared by a wet chemical method and rolling process10.3390/ma15227910 ↗
17. Superior radiation resistance of ZrO2-modified W composites10.3390/ma15061985 ↗
18. Fabrication and mechanical properties of tungsten alloys reinforced with c-ZrO2 particles10.1016/j.jallcom.2018.07.342 ↗
19. Evolution of microstructure and grain growth in ZrO2-Y2O3 alloys10.2355/isijinternational.29.746 ↗
20. Effect of Sn addition on the deformation behavior and microstructural evolution of Mg-Gd-Y-Zr alloy during hot compression10.1016/j.msea.2021.142026 ↗
21. Hot deformation behavior and microstructure evolution of mg-Gd-Y(-Sm)-Zr alloys10.1016/j.jallcom.2022.165937 ↗
22. Effect of strain rate upon plastic flow of steel10.1063/1.1707363 ↗
23. Microstructure evolution of W-1.0 m-ZrO2 alloy during high temperature deformation10.1016/j.jallcom.2022.166153 ↗
24. Microstructure characterization and properties of YSZ particles doped tungsten alloy prepared by liquid phase method10.1016/j.msea.2021.142483 ↗
25. Structure evolution of Y2O3 and consequent effects on mechanical properties of W–Y2O3 alloy prepared by ball milling and SPS10.1016/j.msea.2021.142448 ↗
26. Characterization of Al2O3 in high-strength Mo alloy sheets by high-resolution transmission Electron microscopy10.1017/S1431927615015780 ↗
27. The effect of tungsten content on the rolling texture and microstructure of Ta-W alloys10.1016/j.matchar.2019.110067 ↗
28. Microstructure and texture evolution of pure molybdenum during hot deformation10.1016/j.matchar.2019.110010 ↗
29. Evolution of microstructure and crystallographic texture during cold rolling of liquid phase sintered tungsten heavy alloy10.1016/j.ijrmhm.2022.105849 ↗
30. Tensile fracture behavior and texture evolution of a hot-rolled W–Y2(Zr)O3 alloy10.1016/j.jnucmat.2021.153080 ↗
31. Effects of calcination temperature on grain growth and phase transformation of nano-zirconia withdifferent crystal forms prepared by hydrothermal method10.1016/j.jmrt.2022.06.137 ↗