Material Introduction

Molybdenum Lanthanum Alloy

Material Introduction


The main component of molybdenum lanthanum alloys is Mo-(0.6-1.2)%La2O3; that is, rare earth oxide La2O3 is added to pure molybdenum. The uniformly dispersed La2O3 particles after deformation processing have a strong pinning effect on dislocations, providing the molybdenum alloy with outstanding mechanical properties at high temperatures.

Specifications and Performance


Material

Bar (mm)

Plate (mm)

Molybdenum lanthanum alloy

Φ 1~150

0.5~50

 

Material

Tensile strength at room temperature/MPa

Elongation at room temperature

Tensile strength at 1000°C/MPa

1000℃ elongation

Molybdenum lanthanum alloy

650

25%

220

20%

Notes

30mm diameter bar

Fabrication Process


By means of molybdenum alloy powder preparation, isostatic pressing, high-temperature sintering, and thermal deformation processing, molybdenum lanthanum alloys have a density which is close to the theoretical density, thus providing optimal high-temperature performance.

 

Advantage


Adding the rare earth element La2O3 not only increases the recrystallization temperature and high-temperature creep resistance of molybdenum, but also significantly reduces the plastic-brittle transition temperature of molybdenum, increases ductility, and improves room-temperature brittleness and high-temperature sag resistance.