Mosten Alloy Co., Ltd.

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Mosten Alloy Co., Ltd.

Preparation of a New Type of High strength and High toughness Molybdenum Alloy and its key Anti-oxidation Technology

  • Mosten
  • 7 Mar

Combining the excellent properties of TZM alloy and molybdenum-lanthanum alloy and combining rare earth doping technology with strengthening and toughening technology creatively a series of preparation processes with independent intellectual property rights were formed. Through micro-alloy composition design and ultrastructural control, rare earth doping, homogenization of mixture, refinement of grain strengthening, strong plastic deformation, low temperature sintering, anti-oxidation coating, etc. The technical bottleneck of preparing molybdenum alloy with both high strength and high toughness was broken through. The strengthening and anti-oxidation mechanism of rare earth lanthanum doping was studied. A new type of rare earth doped high strength and high toughness La-TZM alloy was developed and its tensile strength at room temperature was 1341 MPA. The elongation is 7.5%, the recrystallization temperature is 1700 ℃, the DBTT is reduced to-120 ℃, the oxygen content is 23ppm, the properties of the product reach the international advanced level. The new type of La-TZM alloy sheet has been sold to the major molybdenum processing enterprises and equipment manufacturers. The sales income is more than 50 million yuan, and the economic benefit is remarkable.