Enhanced molybdenum alloy types can be divided into the following categories:
1. Ssolid solution strengthening molybdenum alloy
Molybdenum alloy solid solution strengthening elements molybdenum alloy solid solution strengthening of trace molybdenum alloy, molybdenum alloy mainly refers to the type of Mo-0.5Ti, Z-6, Cell-molybdenum alloys, mainly rely on adding a small amount of molybdenum alloying elements in solid solution to improve molybdenum alloys, this strengthening effect is weak, only slightly higher than the molybdenum alloys pure molybdenum.
Thus, adding a small amount of molybdenum in the alloy elements in solid solution at the same time tends to a certain amount of carbon, the carbon and molybdenum alloying elements to form carbides which in turn has the effect of dispersed particles to enhance the strengthening effect of a large molybdenum alloy solid solution strengthening. Such means of molybdenum and tungsten-molybdenum alloy, molybdenum, rhenium molybdenum alloy, it is primarily rely on a lot of molybdenum alloying elements molybdenum alloy with molybdenum to form a solid solution to improve the heat resistance of molybdenum alloy strength and hardness, but poor processing performance
2. Dispersion strengthening molybdenum alloy
Molybdenum carbide dispersion strengthened alloy, the multi-element molybdenum alloy, in addition to the strengthening effect of trace elements, the non-use of carbide reinforced titanium alloy by adding molybdenum, zirconium, hafnium and other active elements react with the carbon refractory carbide materials (TiC, ZrC, HfC) in small dispersed phase.
Play at a high temperature dispersion strengthening effect, Mo-Ti-Zr-C, series TZM, TZC, molybdenum alloy and Mo-Hf-Zr-C, series, ZHM are such rare earth oxide dispersion strengthened molybdenum-based alloy, molybdenum alloy, molybdenum alloy is such a rare earth oxide fine particle dispersion strengthening effect to achieve the purpose of improving strength of the alloy. Compared with carbide strengthening its dispersion strengthening effect stronger, these alloys have ML10, MY and Mo-0.5Ti + Y, etc.
3 Doping enhanced molybdenum alloy
Such alloys are mainly refers to a variety of different amounts of doping molybdenum, it depends not only on doped solid solution strengthening effect of trace elements, and relies primarily on the existence of a high temperature foam potassium alloy to further improve performance.
4. Consolidated strengthening molybdenum alloy
In general, the various strengthening mechanisms molybdenum alloys are closely related, to strengthen the role of trace elements in the 1100 to 1300 mainly temperature play a role, when the temperature rises again, it will lapse and carbide dispersion strengthening effect In 1400 to 1500 the most obvious; carbides in 1500 to 1800 when the softening and unstable. This high melting temperature, significantly enhanced the effect of rare earth oxides is above 2000, rare earth oxide begins to soften, and potassium-doped silicon bubble significant strengthening effect. People have been in the pursuit of higher performance materials integrated hardening type alloy molybdenum alloy research and development is one of the hotspots.
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