Weldable Ductile Molybdenum Alloy Development ,2013-III
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- Category: Molybdenum knowledge
- Published on 03 July 2013
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A molybdenum alloy witn Al,B exhibited the best DBTT values for welds, and the base metal properties were comparable to or slightly better than unalloyed molybdenum. The Mo–Al–B alloy contained a low volume fraction of second-phase particles.
With segregation of boron and carbon to grain boundaries believed to displace oxygen resulting in improved weld properties. The volume fractions of second-phase particles are higher for the Mo–Zr–B alloys.
And these alloys were prone to brittle fracture. It is also noted that these molybdenum alloys with Zr,B exhibited segregation of zirconium, boron and carbon to the grain boundaries.
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