The comparison between TZM and molybdenum
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- Category: Molybdenum's News
- Published on 13 March 2013
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TZM is the name applied to a particle-strengthened molybdenum alloy containing titanium, zirconium and carbon. Fine dispersed titanium-carbides are responsible for the excellent strength properties at temperatures up to 1400 ℃. Some advantages of TZM compared to pure molybdenum include; above 1100 ℃ its tensile strength is about twice that of unalloyed molybdenum, TZM has better creep resistance, a higher recrystallization temperature and better welding properties. TZM should be considered for all structural parts operating over 1100 ℃ under conditions where unalloyed molybdenum is normally used. TZM can be fabricated in much the same manner as unalloyed molybdenum.
The recrystallization temperature of TZM is higher than that of unalloyed molybdenum. However, TZM, like unalloyed molybdenum does become brittle when recrystallized. The room temperature tensile strength of recrystallized TZM is about the same as unalloyed molybdenum.
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